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pigweed / third_party / github / project-chip / connectedhomeip / 40ffedfcb691a7d682e8802b14e946c77cc38972 / . / src / crypto / tests / TestChipCryptoPAL.cpp
blob: db5ee6b74480cd692bec883b0afadadde6ac4889 [file] [log] [blame]
/*
*
* Copyright (c) 2020-2023 Project CHIP Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "TestCryptoLayer.h"
#include "AES_CCM_128_test_vectors.h"
#include "DerSigConversion_test_vectors.h"
#include "ECDH_P256_test_vectors.h"
#include "HKDF_SHA256_test_vectors.h"
#include "HMAC_SHA256_test_vectors.h"
#include "Hash_SHA256_test_vectors.h"
#include "PBKDF2_SHA256_test_vectors.h"
#include "RawIntegerToDer_test_vectors.h"
#include "SPAKE2P_FE_MUL_test_vectors.h"
#include "SPAKE2P_FE_RW_test_vectors.h"
#include "SPAKE2P_HMAC_test_vectors.h"
#include "SPAKE2P_POINT_MUL_ADD_test_vectors.h"
#include "SPAKE2P_POINT_MUL_test_vectors.h"
#include "SPAKE2P_POINT_RW_test_vectors.h"
#include "SPAKE2P_POINT_VALID_test_vectors.h"
#include "SPAKE2P_RFC_test_vectors.h"
#include <crypto/CHIPCryptoPAL.h>
#include <crypto/DefaultSessionKeystore.h>
#include <lib/core/CHIPError.h>
#include <lib/support/CodeUtils.h>
#include <lib/support/ScopedBuffer.h>
#include <lib/support/UnitTestExtendedAssertions.h>
#include <lib/support/UnitTestRegistration.h>
#include <nlunit-test.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <lib/support/BytesToHex.h>
#include <credentials/CHIPCert.h>
#include <credentials/attestation_verifier/TestPAAStore.h>
#include <credentials/tests/CHIPAttCert_test_vectors.h>
#include <credentials/tests/CHIPCert_test_vectors.h>
#include <lib/asn1/ASN1.h>
#include <lib/asn1/ASN1Macros.h>
#include <lib/core/TLV.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#if CHIP_CRYPTO_MBEDTLS || CHIP_CRYPTO_PSA
#include <mbedtls/memory_buffer_alloc.h>
#endif
#if CHIP_CRYPTO_PSA
#include <psa/crypto.h>
#endif
using namespace chip;
using namespace chip::Crypto;
using namespace chip::TLV;
namespace {
using Test_P256Keypair = P256Keypair;
using TestSpake2p_P256_SHA256_HKDF_HMAC = Spake2p_P256_SHA256_HKDF_HMAC;
using TestPBKDF2_sha256 = PBKDF2_sha256;
using TestHKDF_sha = HKDF_sha;
using TestHMAC_sha = HMAC_sha;
// Helper class to verify that all mbedTLS heap objects are released at the end of a test.
#if defined(MBEDTLS_MEMORY_DEBUG)
class HeapChecker
{
public:
explicit HeapChecker(nlTestSuite * testSuite) : mTestSuite(testSuite)
{
size_t numBlocks;
mbedtls_memory_buffer_alloc_cur_get(&mHeapBytesUsed, &numBlocks);
}
~HeapChecker()
{
size_t bytesUsed;
size_t numBlocks;
mbedtls_memory_buffer_alloc_cur_get(&bytesUsed, &numBlocks);
if (bytesUsed != mHeapBytesUsed)
{
mbedtls_memory_buffer_alloc_status();
NL_TEST_ASSERT(mTestSuite, bytesUsed == mHeapBytesUsed);
}
}
private:
nlTestSuite * mTestSuite;
size_t mHeapBytesUsed;
};
#else
class HeapChecker
{
public:
explicit HeapChecker(nlTestSuite *) {}
};
#endif
#include "DacValidationExplicitVectors.h"
// Verify that two HKDF keys are equal by checking if they generate the same attestation challenge.
// Note that the keys cannot be compared directly because they are given as key handles.
void AssertKeysEqual(nlTestSuite * inSuite, SessionKeystore & keystore, HkdfKeyHandle & left, const HkdfKeyHandle & right)
{
auto generateChallenge = [&](const HkdfKeyHandle & key, AttestationChallenge & challenge) -> void {
constexpr uint8_t kTestSalt[] = { 'T', 'E', 'S', 'T', 'S', 'A', 'L', 'T' };
constexpr uint8_t kTestInfo[] = { 'T', 'E', 'S', 'T', 'I', 'N', 'F', 'O' };
Aes128KeyHandle i2rKey;
Aes128KeyHandle r2iKey;
CHIP_ERROR error = keystore.DeriveSessionKeys(key, ByteSpan(kTestSalt), ByteSpan(kTestInfo), i2rKey, r2iKey, challenge);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// Ignore the keys, just return the attestation challenge
keystore.DestroyKey(i2rKey);
keystore.DestroyKey(r2iKey);
};
AttestationChallenge leftChallenge;
AttestationChallenge rightChallenge;
generateChallenge(left, leftChallenge);
generateChallenge(right, rightChallenge);
NL_TEST_ASSERT(inSuite, memcmp(leftChallenge.ConstBytes(), rightChallenge.ConstBytes(), AttestationChallenge::Capacity()) == 0);
}
} // namespace
static uint32_t gs_test_entropy_source_called = 0;
static int test_entropy_source(void * data, uint8_t * output, size_t len, size_t * olen)
{
*olen = len;
gs_test_entropy_source_called++;
return 0;
}
constexpr size_t KEY_LENGTH = Crypto::kAES_CCM128_Key_Length;
constexpr size_t NONCE_LENGTH = Crypto::kAES_CCM128_Nonce_Length;
struct AesCtrTestEntry
{
const uint8_t * key; ///< Key to use for AES-CTR-128 encryption/decryption -- 16 byte length
const uint8_t * nonce; ///< Nonce to use for AES-CTR-128 encryption/decryption -- 13 byte length
const uint8_t * plaintext;
size_t plaintextLen;
const uint8_t * ciphertext;
size_t ciphertextLen;
};
/**
* Test vectors for AES-CTR-128 encryption/decryption.
*
* Sourced from: https://www.ietf.org/rfc/rfc3686.txt (Section 6)
* Modified to use `IV = flags byte | 13 byte nonce | u16 counter` as defined in NIST SP 800-38A.
*
* All AES-CCM test vectors can be used as well, but those are already called to validate underlying AES-CCM functionality.
*/
const AesCtrTestEntry theAesCtrTestVector[] = {
{
.key = (const uint8_t *) "\xae\x68\x52\xf8\x12\x10\x67\xcc\x4b\xf7\xa5\x76\x55\x77\xf3\x9e",
.nonce = (const uint8_t *) "\x00\x00\x00\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00",
.plaintext = (const uint8_t *) "\x53\x69\x6e\x67\x6c\x65\x20\x62\x6c\x6f\x63\x6b\x20\x6d\x73\x67",
.plaintextLen = 16,
.ciphertext = (const uint8_t *) "\x0d\x0a\x6b\x6d\xc1\xf6\x9b\x4d\x14\xca\x4c\x15\x42\x22\x42\xc4",
.ciphertextLen = 16,
},
{
.key = (const uint8_t *) "\x7e\x24\x06\x78\x17\xfa\xe0\xd7\x43\xd6\xce\x1f\x32\x53\x91\x63",
.nonce = (const uint8_t *) "\x00\x6c\xb6\xdb\xc0\x54\x3b\x59\xda\x48\xd9\x0b\x00",
.plaintext = (const uint8_t *) "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
.plaintextLen = 32,
.ciphertext = (const uint8_t *) "\x4f\x3d\xf9\x49\x15\x88\x4d\xe0\xdc\x0e\x30\x95\x0d\xe7\xa6\xe9"
"\x5a\x91\x7e\x1d\x06\x42\x22\xdb\x2f\x6e\xc7\x3d\x99\x4a\xd9\x5f",
.ciphertextLen = 32,
}
};
struct TestAesKey
{
public:
TestAesKey(nlTestSuite * inSuite, const uint8_t * keyBytes, size_t keyLength)
{
Crypto::Symmetric128BitsKeyByteArray keyMaterial;
memcpy(&keyMaterial, keyBytes, keyLength);
CHIP_ERROR err = keystore.CreateKey(keyMaterial, key);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
}
~TestAesKey() { keystore.DestroyKey(key); }
DefaultSessionKeystore keystore;
Aes128KeyHandle key;
};
struct TestHmacKey
{
public:
TestHmacKey(nlTestSuite * inSuite, const uint8_t * keyBytes, size_t keyLength)
{
Crypto::Symmetric128BitsKeyByteArray keyMaterial;
memcpy(&keyMaterial, keyBytes, keyLength);
CHIP_ERROR err = keystore.CreateKey(keyMaterial, key);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
}
~TestHmacKey() { keystore.DestroyKey(key); }
DefaultSessionKeystore keystore;
Hmac128KeyHandle key;
};
static void TestAES_CTR_128_Encrypt(nlTestSuite * inSuite, const AesCtrTestEntry * vector)
{
chip::Platform::ScopedMemoryBuffer<uint8_t> outBuffer;
outBuffer.Alloc(vector->ciphertextLen);
NL_TEST_ASSERT(inSuite, outBuffer);
TestAesKey key(inSuite, vector->key, KEY_LENGTH);
CHIP_ERROR err = AES_CTR_crypt(vector->plaintext, vector->plaintextLen, key.key, vector->nonce, NONCE_LENGTH, outBuffer.Get());
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
bool outputMatches = memcmp(outBuffer.Get(), vector->ciphertext, vector->ciphertextLen) == 0;
NL_TEST_ASSERT(inSuite, outputMatches);
if (!outputMatches)
{
printf("\n Test failed due to mismatching ciphertext\n");
}
}
static void TestAES_CTR_128_Decrypt(nlTestSuite * inSuite, const AesCtrTestEntry * vector)
{
chip::Platform::ScopedMemoryBuffer<uint8_t> outBuffer;
outBuffer.Alloc(vector->plaintextLen);
NL_TEST_ASSERT(inSuite, outBuffer);
TestAesKey key(inSuite, vector->key, KEY_LENGTH);
CHIP_ERROR err =
AES_CTR_crypt(vector->ciphertext, vector->ciphertextLen, key.key, vector->nonce, NONCE_LENGTH, outBuffer.Get());
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
bool outputMatches = memcmp(outBuffer.Get(), vector->plaintext, vector->plaintextLen) == 0;
NL_TEST_ASSERT(inSuite, outputMatches);
if (!outputMatches)
{
printf("\n Test failed due to mismatching plaintext\n");
}
}
static void TestAES_CTR_128CryptTestVectors(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestsRan = 0;
for (const auto & vector : theAesCtrTestVector)
{
if (vector.plaintextLen > 0)
{
numOfTestsRan++;
TestAES_CTR_128_Encrypt(inSuite, &vector);
TestAES_CTR_128_Decrypt(inSuite, &vector);
}
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
}
static void TestAES_CCM_128EncryptTestVectors(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestVectors = ArraySize(ccm_128_test_vectors);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const ccm_128_test_vector * vector = ccm_128_test_vectors[vectorIndex];
if (vector->pt_len > 0)
{
numOfTestsRan++;
chip::Platform::ScopedMemoryBuffer<uint8_t> out_ct;
out_ct.Alloc(vector->ct_len);
NL_TEST_ASSERT(inSuite, out_ct);
chip::Platform::ScopedMemoryBuffer<uint8_t> out_tag;
out_tag.Alloc(vector->tag_len);
NL_TEST_ASSERT(inSuite, out_tag);
TestAesKey key(inSuite, vector->key, vector->key_len);
CHIP_ERROR err = AES_CCM_encrypt(vector->pt, vector->pt_len, vector->aad, vector->aad_len, key.key, vector->nonce,
vector->nonce_len, out_ct.Get(), out_tag.Get(), vector->tag_len);
NL_TEST_ASSERT(inSuite, err == vector->result);
if (vector->result == CHIP_NO_ERROR)
{
bool areCTsEqual = memcmp(out_ct.Get(), vector->ct, vector->ct_len) == 0;
bool areTagsEqual = memcmp(out_tag.Get(), vector->tag, vector->tag_len) == 0;
NL_TEST_ASSERT(inSuite, areCTsEqual);
NL_TEST_ASSERT(inSuite, areTagsEqual);
if (!areCTsEqual)
{
printf("\n Test %d failed due to mismatching ciphertext\n", vector->tcId);
}
if (!areTagsEqual)
{
printf("\n Test %d failed due to mismatching tags\n", vector->tcId);
}
}
}
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
}
static void TestAES_CCM_128DecryptTestVectors(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestVectors = ArraySize(ccm_128_test_vectors);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const ccm_128_test_vector * vector = ccm_128_test_vectors[vectorIndex];
if (vector->pt_len > 0)
{
numOfTestsRan++;
chip::Platform::ScopedMemoryBuffer<uint8_t> out_pt;
out_pt.Alloc(vector->pt_len);
NL_TEST_ASSERT(inSuite, out_pt);
TestAesKey key(inSuite, vector->key, vector->key_len);
CHIP_ERROR err = AES_CCM_decrypt(vector->ct, vector->ct_len, vector->aad, vector->aad_len, vector->tag, vector->tag_len,
key.key, vector->nonce, vector->nonce_len, out_pt.Get());
NL_TEST_ASSERT(inSuite, err == vector->result);
if (vector->result == CHIP_NO_ERROR)
{
bool arePTsEqual = memcmp(vector->pt, out_pt.Get(), vector->pt_len) == 0;
NL_TEST_ASSERT(inSuite, arePTsEqual);
if (!arePTsEqual)
{
printf("\n Test %d failed due to mismatching plaintext\n", vector->tcId);
}
}
}
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
}
static void TestAES_CCM_128EncryptInvalidNonceLen(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestVectors = ArraySize(ccm_128_test_vectors);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const ccm_128_test_vector * vector = ccm_128_test_vectors[vectorIndex];
if (vector->pt_len > 0)
{
numOfTestsRan++;
chip::Platform::ScopedMemoryBuffer<uint8_t> out_ct;
out_ct.Alloc(vector->ct_len);
NL_TEST_ASSERT(inSuite, out_ct);
chip::Platform::ScopedMemoryBuffer<uint8_t> out_tag;
out_tag.Alloc(vector->tag_len);
NL_TEST_ASSERT(inSuite, out_tag);
TestAesKey key(inSuite, vector->key, vector->key_len);
CHIP_ERROR err = AES_CCM_encrypt(vector->pt, vector->pt_len, vector->aad, vector->aad_len, key.key, vector->nonce, 0,
out_ct.Get(), out_tag.Get(), vector->tag_len);
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_INVALID_ARGUMENT);
break;
}
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
}
static void TestAES_CCM_128EncryptInvalidTagLen(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestVectors = ArraySize(ccm_128_test_vectors);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const ccm_128_test_vector * vector = ccm_128_test_vectors[vectorIndex];
if (vector->pt_len > 0)
{
numOfTestsRan++;
chip::Platform::ScopedMemoryBuffer<uint8_t> out_ct;
out_ct.Alloc(vector->ct_len);
NL_TEST_ASSERT(inSuite, out_ct);
chip::Platform::ScopedMemoryBuffer<uint8_t> out_tag;
out_tag.Alloc(vector->tag_len);
NL_TEST_ASSERT(inSuite, out_tag);
TestAesKey key(inSuite, vector->key, vector->key_len);
CHIP_ERROR err = AES_CCM_encrypt(vector->pt, vector->pt_len, vector->aad, vector->aad_len, key.key, vector->nonce,
vector->nonce_len, out_ct.Get(), out_tag.Get(), 13);
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_INVALID_ARGUMENT);
break;
}
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
}
static void TestAES_CCM_128DecryptInvalidNonceLen(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestVectors = ArraySize(ccm_128_test_vectors);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const ccm_128_test_vector * vector = ccm_128_test_vectors[vectorIndex];
if (vector->pt_len > 0)
{
numOfTestsRan++;
Platform::ScopedMemoryBuffer<uint8_t> out_pt;
out_pt.Alloc(vector->pt_len);
NL_TEST_ASSERT(inSuite, out_pt);
TestAesKey key(inSuite, vector->key, vector->key_len);
CHIP_ERROR err = AES_CCM_decrypt(vector->ct, vector->ct_len, vector->aad, vector->aad_len, vector->tag, vector->tag_len,
key.key, vector->nonce, 0, out_pt.Get());
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_INVALID_ARGUMENT);
break;
}
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
}
static void TestSensitiveDataBuffer(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
constexpr size_t kCapacity = 32;
constexpr size_t kLength = 16;
using Buffer = SensitiveDataBuffer<kCapacity>;
const uint8_t kAllZeros[kCapacity] = { 0 };
uint8_t testVector[kCapacity];
// Give us some data.
CHIP_ERROR err = DRBG_get_bytes(testVector, sizeof(testVector));
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
// Test initial value
Buffer buffer;
NL_TEST_ASSERT(inSuite, buffer.ConstBytes() == (const uint8_t *) buffer.Bytes());
NL_TEST_ASSERT(inSuite, buffer.Length() == 0);
// Put data in the buffer and test all accessors
memcpy(buffer.Bytes(), testVector, kCapacity);
buffer.SetLength(kLength);
NL_TEST_ASSERT(inSuite, buffer.ConstBytes() == (const uint8_t *) buffer.Bytes());
NL_TEST_ASSERT(inSuite, buffer.ConstBytes() == buffer.Span().data());
NL_TEST_ASSERT(inSuite, buffer.Length() == kLength);
NL_TEST_ASSERT(inSuite, buffer.Length() == buffer.Span().size());
// Test sanitization of entire buffer (even though length < capacity)
const void * bufferStorage = buffer.ConstBytes();
buffer.~Buffer();
NL_TEST_ASSERT(inSuite, memcmp(bufferStorage, kAllZeros, kCapacity) == 0);
NL_TEST_ASSERT(inSuite, memcmp(bufferStorage, testVector, kCapacity));
}
static void TestSensitiveDataFixedBuffer(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
constexpr size_t kCapacity = 32;
using Buffer = SensitiveDataFixedBuffer<kCapacity>;
using BufferSpan = FixedByteSpan<kCapacity>;
const uint8_t kAllZeros[kCapacity] = { 0 };
uint8_t testVector[kCapacity];
// Give us some data.
CHIP_ERROR err = DRBG_get_bytes(testVector, sizeof(testVector));
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
// Test construction from array and all accessors
Buffer buffer(testVector);
NL_TEST_ASSERT(inSuite, buffer.ConstBytes() == (const uint8_t *) buffer.Bytes());
NL_TEST_ASSERT(inSuite, buffer.ConstBytes() == buffer.Span().data());
NL_TEST_ASSERT(inSuite, memcmp(buffer.ConstBytes(), testVector, kCapacity) == 0);
// Test sanitization
const void * bufferStorage = buffer.ConstBytes();
buffer.~Buffer();
NL_TEST_ASSERT(inSuite, memcmp(bufferStorage, kAllZeros, kCapacity) == 0);
NL_TEST_ASSERT(inSuite, memcmp(bufferStorage, testVector, kCapacity));
// Give us different data
err = DRBG_get_bytes(testVector, sizeof(testVector));
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
// Test construction from span and all accessors
new (&buffer) Buffer(BufferSpan(testVector));
NL_TEST_ASSERT(inSuite, buffer.ConstBytes() == (const uint8_t *) buffer.Bytes());
NL_TEST_ASSERT(inSuite, buffer.ConstBytes() == buffer.Span().data());
NL_TEST_ASSERT(inSuite, memcmp(buffer.ConstBytes(), testVector, kCapacity) == 0);
}
static void TestAsn1Conversions(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
static_assert(sizeof(kDerSigConvDerCase4) == (sizeof(kDerSigConvRawCase4) + chip::Crypto::kMax_ECDSA_X9Dot62_Asn1_Overhead),
"kDerSigConvDerCase4 must have worst case overhead");
int numOfTestVectors = ArraySize(kDerSigConvTestVectors);
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const der_sig_conv_vector * vector = &kDerSigConvTestVectors[vectorIndex];
chip::Platform::ScopedMemoryBuffer<uint8_t> out_raw_sig;
size_t out_raw_sig_allocated_size = vector->fe_length_bytes * 2;
out_raw_sig.Calloc(out_raw_sig_allocated_size);
NL_TEST_ASSERT(inSuite, out_raw_sig);
chip::Platform::ScopedMemoryBuffer<uint8_t> out_der_sig;
size_t out_der_sig_allocated_size = (vector->fe_length_bytes * 2) + kMax_ECDSA_X9Dot62_Asn1_Overhead;
out_der_sig.Calloc(out_der_sig_allocated_size);
NL_TEST_ASSERT(inSuite, out_der_sig);
// Test conversion from ASN.1 ER to raw
MutableByteSpan out_raw_sig_span(out_raw_sig.Get(), out_raw_sig_allocated_size);
CHIP_ERROR status = EcdsaAsn1SignatureToRaw(vector->fe_length_bytes,
ByteSpan{ vector->der_version, vector->der_version_length }, out_raw_sig_span);
NL_TEST_ASSERT(inSuite, status == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, out_raw_sig_span.size() == vector->raw_version_length);
NL_TEST_ASSERT(inSuite, (memcmp(out_raw_sig_span.data(), vector->raw_version, vector->raw_version_length) == 0));
// Test conversion from raw to ASN.1 DER
MutableByteSpan out_der_sig_span(out_der_sig.Get(), out_der_sig_allocated_size);
status = EcdsaRawSignatureToAsn1(vector->fe_length_bytes, ByteSpan{ vector->raw_version, vector->raw_version_length },
out_der_sig_span);
NL_TEST_ASSERT(inSuite, status == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, out_der_sig_span.size() <= out_der_sig_allocated_size);
NL_TEST_ASSERT(inSuite, out_der_sig_span.size() == vector->der_version_length);
NL_TEST_ASSERT(inSuite, (memcmp(out_der_sig_span.data(), vector->der_version, vector->der_version_length) == 0));
}
}
static void TestRawIntegerToDerValidCases(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestCases = ArraySize(kRawIntegerToDerVectors);
for (int testIdx = 0; testIdx < numOfTestCases; testIdx++)
{
RawIntegerToDerVector v = kRawIntegerToDerVectors[testIdx];
// Cover case with tag/length
{
chip::Platform::ScopedMemoryBuffer<uint8_t> out_der_buffer;
out_der_buffer.Alloc(v.expected_size);
NL_TEST_ASSERT(inSuite, out_der_buffer);
MutableByteSpan out_der_integer(out_der_buffer.Get(), v.expected_size);
CHIP_ERROR status = ConvertIntegerRawToDer(ByteSpan{ v.candidate, v.candidate_size }, out_der_integer);
NL_TEST_ASSERT(inSuite, status == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, out_der_integer.size() == v.expected_size);
NL_TEST_ASSERT(inSuite, out_der_integer.data_equal(ByteSpan(v.expected, v.expected_size)));
// Cover case of buffer too small
MutableByteSpan out_der_integer_too_small(out_der_buffer.Get(), v.expected_size - 1);
status = ConvertIntegerRawToDer(ByteSpan{ v.candidate, v.candidate_size }, out_der_integer_too_small);
NL_TEST_ASSERT(inSuite, status == CHIP_ERROR_BUFFER_TOO_SMALL);
}
// Cover case without tag/length
{
chip::Platform::ScopedMemoryBuffer<uint8_t> out_der_buffer;
out_der_buffer.Alloc(v.expected_without_tag_size);
NL_TEST_ASSERT(inSuite, out_der_buffer);
MutableByteSpan out_der_integer(out_der_buffer.Get(), v.expected_without_tag_size);
CHIP_ERROR status = ConvertIntegerRawToDerWithoutTag(ByteSpan{ v.candidate, v.candidate_size }, out_der_integer);
NL_TEST_ASSERT(inSuite, status == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, out_der_integer.size() == v.expected_without_tag_size);
NL_TEST_ASSERT(inSuite, out_der_integer.data_equal(ByteSpan(v.expected_without_tag, v.expected_without_tag_size)));
}
}
}
static void TestRawIntegerToDerInvalidCases(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
// Cover case of invalid buffers
uint8_t placeholder[10] = { 0 };
MutableByteSpan good_out_buffer(placeholder);
ByteSpan good_buffer(placeholder);
MutableByteSpan bad_out_buffer_empty;
ByteSpan bad_buffer_empty;
struct ErrorCase
{
const ByteSpan & input;
MutableByteSpan & output;
CHIP_ERROR expected_status;
};
const ErrorCase error_cases[] = {
{ .input = good_buffer, .output = bad_out_buffer_empty, .expected_status = CHIP_ERROR_INVALID_ARGUMENT },
{ .input = bad_buffer_empty, .output = good_out_buffer, .expected_status = CHIP_ERROR_INVALID_ARGUMENT }
};
int case_idx = 0;
for (const ErrorCase & v : error_cases)
{
CHIP_ERROR status = ConvertIntegerRawToDerWithoutTag(v.input, v.output);
if (status != v.expected_status)
{
ChipLogError(Crypto, "Failed TestRawIntegerToDerInvalidCases sub-case %d", case_idx);
NL_TEST_ASSERT(inSuite, v.expected_status == status);
}
++case_idx;
}
}
static void TestReadDerLengthValidCases(nlTestSuite * inSuite, void * inContext)
{
const uint8_t short_zero_length[] = { 0x00 };
ByteSpan short_zero_length_buf(short_zero_length);
const uint8_t short_length[] = { 0x15 };
ByteSpan short_length_buf(short_length);
const uint8_t single_byte_length[] = { 0x81, 0x80 };
ByteSpan single_byte_length_buf(single_byte_length);
const uint8_t single_byte_length_large[] = { 0x81, 0xFF };
ByteSpan single_byte_length_large_buf(single_byte_length_large);
const uint8_t two_byte_length[] = { 0x82, 0xFF, 0x01 };
ByteSpan two_byte_length_buf(two_byte_length);
const uint8_t three_byte_length[] = { 0x83, 0xFF, 0x00, 0xAA };
ByteSpan three_byte_length_buf(three_byte_length);
const uint8_t four_byte_length[] = { 0x84, 0x01, 0x02, 0x03, 0x04 };
ByteSpan four_byte_length_buf(four_byte_length);
const uint8_t four_byte_length_large[] = { 0x84, 0xFF, 0xFF, 0xFF, 0xFF };
ByteSpan four_byte_length_large_buf(four_byte_length_large);
uint8_t max_byte_length_large[1 + sizeof(size_t)];
ByteSpan max_byte_length_large_buf(max_byte_length_large);
// We build a DER length value of SIZE_MAX programmatically.
max_byte_length_large[0] = 0x80 | sizeof(size_t);
memset(&max_byte_length_large[1], 0xFF, sizeof(size_t));
struct SuccessCase
{
const ByteSpan & input_buf;
const size_t expected_length;
};
const SuccessCase cases[] = {
{ .input_buf = short_zero_length_buf, .expected_length = static_cast<size_t>(0x00) },
{ .input_buf = short_length_buf, .expected_length = static_cast<size_t>(0x15) },
{ .input_buf = single_byte_length_buf, .expected_length = static_cast<size_t>(0x80) },
{ .input_buf = single_byte_length_large_buf, .expected_length = static_cast<size_t>(0xFF) },
{ .input_buf = two_byte_length_buf, .expected_length = static_cast<size_t>(0xFF01) },
{ .input_buf = three_byte_length_buf, .expected_length = static_cast<size_t>(0xFF00AAUL) },
{ .input_buf = four_byte_length_buf, .expected_length = static_cast<size_t>(0x01020304UL) },
{ .input_buf = four_byte_length_large_buf, .expected_length = static_cast<size_t>(0xFFFFFFFFUL) },
{ .input_buf = max_byte_length_large_buf, .expected_length = SIZE_MAX },
};
int case_idx = 0;
for (const SuccessCase & v : cases)
{
size_t output_length = SIZE_MAX - 1;
chip::Encoding::LittleEndian::Reader input_reader{ v.input_buf };
CHIP_ERROR status = ReadDerLength(input_reader, output_length);
if ((status != CHIP_NO_ERROR) || (v.expected_length != output_length))
{
ChipLogError(Crypto, "Failed TestReadDerLengthValidCases sub-case %d", case_idx);
NL_TEST_ASSERT_EQUALS(inSuite, output_length, v.expected_length);
NL_TEST_ASSERT_SUCCESS(inSuite, status);
}
++case_idx;
}
}
static void TestReadDerLengthInvalidCases(nlTestSuite * inSuite, void * inContext)
{
uint8_t placeholder[1];
ByteSpan bad_buffer_empty(placeholder, 0);
const uint8_t zero_multi_byte_length[] = { 0x80 };
ByteSpan zero_multi_byte_length_buf(zero_multi_byte_length);
const uint8_t single_byte_length_zero[] = { 0x81, 0x00 };
ByteSpan single_byte_length_zero_buf(single_byte_length_zero);
const uint8_t single_byte_length_too_small[] = { 0x81, 0x7F };
ByteSpan single_byte_length_too_small_buf(single_byte_length_too_small);
const uint8_t multiple_byte_length_zero_padded[] = { 0x82, 0x00, 0xFF };
ByteSpan multiple_byte_length_zero_padded_buf(multiple_byte_length_zero_padded);
const uint8_t multiple_byte_length_insufficient_bytes[] = { 0x84, 0xFF, 0xAA, 0x01 };
ByteSpan multiple_byte_length_insufficient_bytes_buf(multiple_byte_length_insufficient_bytes);
const uint8_t multiple_byte_length_insufficient_bytes2[] = { 0x83 };
ByteSpan multiple_byte_length_insufficient_bytes2_buf(multiple_byte_length_insufficient_bytes2);
uint8_t max_byte_length_large_insufficient_bytes[1 + sizeof(size_t) - 1];
ByteSpan max_byte_length_large_insufficient_bytes_buf(max_byte_length_large_insufficient_bytes);
// We build a DER length value of SIZE_MAX programmatically, with one byte too few.
max_byte_length_large_insufficient_bytes[0] = 0x80 | sizeof(size_t);
memset(&max_byte_length_large_insufficient_bytes[1], 0xFF, sizeof(max_byte_length_large_insufficient_bytes) - 1);
struct ErrorCase
{
const ByteSpan & input_buf;
CHIP_ERROR expected_status;
};
const ErrorCase error_cases[] = {
{ .input_buf = bad_buffer_empty, .expected_status = CHIP_ERROR_BUFFER_TOO_SMALL },
{ .input_buf = zero_multi_byte_length_buf, .expected_status = CHIP_ERROR_INVALID_ARGUMENT },
{ .input_buf = single_byte_length_zero_buf, .expected_status = CHIP_ERROR_INVALID_ARGUMENT },
{ .input_buf = single_byte_length_too_small_buf, .expected_status = CHIP_ERROR_INVALID_ARGUMENT },
{ .input_buf = multiple_byte_length_zero_padded_buf, .expected_status = CHIP_ERROR_INVALID_ARGUMENT },
{ .input_buf = multiple_byte_length_insufficient_bytes_buf, .expected_status = CHIP_ERROR_BUFFER_TOO_SMALL },
{ .input_buf = multiple_byte_length_insufficient_bytes2_buf, .expected_status = CHIP_ERROR_BUFFER_TOO_SMALL },
{ .input_buf = max_byte_length_large_insufficient_bytes_buf, .expected_status = CHIP_ERROR_BUFFER_TOO_SMALL },
};
int case_idx = 0;
for (const ErrorCase & v : error_cases)
{
size_t output_length = SIZE_MAX;
chip::Encoding::LittleEndian::Reader input_reader{ v.input_buf };
CHIP_ERROR status = ReadDerLength(input_reader, output_length);
if (status != v.expected_status)
{
ChipLogError(Crypto, "Failed TestReadDerLengthInvalidCases sub-case %d", case_idx);
NL_TEST_ASSERT_EQUALS(inSuite, v.expected_status, status);
}
++case_idx;
}
}
static void TestHash_SHA256(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestCases = ArraySize(hash_sha256_test_vectors);
int numOfTestsExecuted = 0;
for (numOfTestsExecuted = 0; numOfTestsExecuted < numOfTestCases; numOfTestsExecuted++)
{
hash_sha256_vector v = hash_sha256_test_vectors[numOfTestsExecuted];
uint8_t out_buffer[kSHA256_Hash_Length];
Hash_SHA256(v.data, v.data_length, out_buffer);
bool success = memcmp(v.hash, out_buffer, sizeof(out_buffer)) == 0;
NL_TEST_ASSERT(inSuite, success);
}
NL_TEST_ASSERT(inSuite, numOfTestsExecuted == ArraySize(hash_sha256_test_vectors));
}
static void TestHash_SHA256_Stream(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestCases = ArraySize(hash_sha256_test_vectors);
int numOfTestsExecuted = 0;
CHIP_ERROR error = CHIP_NO_ERROR;
for (numOfTestsExecuted = 0; numOfTestsExecuted < numOfTestCases; numOfTestsExecuted++)
{
hash_sha256_vector v = hash_sha256_test_vectors[numOfTestsExecuted];
const uint8_t * data = v.data;
size_t data_length = v.data_length;
uint8_t out_buffer[kSHA256_Hash_Length];
Hash_SHA256_stream sha256;
error = sha256.Begin();
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// Split data into 3 random streams.
for (int i = 0; i < 2; ++i)
{
size_t rand_data_length = static_cast<unsigned int>(rand()) % (data_length + 1);
error = sha256.AddData(ByteSpan{ data, rand_data_length });
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
data += rand_data_length;
data_length -= rand_data_length;
}
error = sha256.AddData(ByteSpan{ data, data_length });
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
MutableByteSpan out_span(out_buffer);
error = sha256.Finish(out_span);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, out_span.size() == kSHA256_Hash_Length);
bool success = memcmp(v.hash, out_span.data(), out_span.size()) == 0;
NL_TEST_ASSERT(inSuite, success);
}
NL_TEST_ASSERT(inSuite, numOfTestsExecuted == ArraySize(hash_sha256_test_vectors));
// Test partial digests
uint8_t source_buf[2 * kSHA256_Hash_Length];
// Use a basic counter for all data
for (size_t idx = 0; idx < sizeof(source_buf); idx++)
{
source_buf[idx] = static_cast<uint8_t>(idx & 0xFFu);
}
// Use split blocks of every length including digest length, to cover
// all padding cases.
for (size_t block1_size = 1; block1_size <= kSHA256_Hash_Length; block1_size++)
{
for (size_t block2_size = 1; block2_size <= kSHA256_Hash_Length; block2_size++)
{
uint8_t partial_digest1[kSHA256_Hash_Length];
uint8_t partial_digest2[kSHA256_Hash_Length];
uint8_t partial_digest_ref[kSHA256_Hash_Length];
uint8_t total_digest[kSHA256_Hash_Length];
uint8_t total_digest_ref[kSHA256_Hash_Length];
MutableByteSpan partial_digest_span1(partial_digest1);
MutableByteSpan partial_digest_span2(partial_digest2);
MutableByteSpan total_digest_span(total_digest);
Hash_SHA256_stream sha256;
NL_TEST_ASSERT(inSuite, sha256.Begin() == CHIP_NO_ERROR);
// Compute partial digest after first block
NL_TEST_ASSERT(inSuite, sha256.AddData(ByteSpan{ &source_buf[0], block1_size }) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, sha256.GetDigest(partial_digest_span1) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, partial_digest_span1.size() == kSHA256_Hash_Length);
// Validate partial digest matches expectations
Hash_SHA256(&source_buf[0], block1_size, &partial_digest_ref[0]);
NL_TEST_ASSERT(inSuite, 0 == memcmp(partial_digest_span1.data(), partial_digest_ref, partial_digest_span1.size()));
// Compute partial digest and total digest after second block
NL_TEST_ASSERT(inSuite, sha256.AddData(ByteSpan{ &source_buf[block1_size], block2_size }) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, sha256.GetDigest(partial_digest_span2) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, partial_digest_span2.size() == kSHA256_Hash_Length);
NL_TEST_ASSERT(inSuite, sha256.Finish(total_digest_span) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, total_digest_span.size() == kSHA256_Hash_Length);
// Validate second partial digest matches final digest
Hash_SHA256(&source_buf[0], block1_size + block2_size, &total_digest_ref[0]);
NL_TEST_ASSERT(inSuite, 0 == memcmp(partial_digest_span2.data(), total_digest_ref, partial_digest_span2.size()));
NL_TEST_ASSERT(inSuite, 0 == memcmp(total_digest_span.data(), total_digest_ref, total_digest_span.size()));
}
}
// Validate error cases
{
uint8_t source_buf2[5] = { 1, 2, 3, 4, 5 };
uint8_t digest_buf_too_small[kSHA256_Hash_Length - 1];
uint8_t digest_buf_ok[kSHA256_Hash_Length];
uint8_t digest_buf_ref[kSHA256_Hash_Length];
MutableByteSpan digest_span_too_small(digest_buf_too_small);
MutableByteSpan digest_span_ok(digest_buf_ok);
Hash_SHA256(&source_buf2[0], sizeof(source_buf2), &digest_buf_ref[0]);
Hash_SHA256_stream sha256;
NL_TEST_ASSERT(inSuite, sha256.Begin() == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, sha256.AddData(ByteSpan{ source_buf2 }) == CHIP_NO_ERROR);
// Check that error behavior works on buffer too small
NL_TEST_ASSERT(inSuite, sha256.GetDigest(digest_span_too_small) == CHIP_ERROR_BUFFER_TOO_SMALL);
NL_TEST_ASSERT(inSuite, sha256.Finish(digest_span_too_small) == CHIP_ERROR_BUFFER_TOO_SMALL);
// Check that both GetDigest/Finish can still work after error.
NL_TEST_ASSERT(inSuite, sha256.GetDigest(digest_span_ok) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, 0 == memcmp(digest_span_ok.data(), digest_buf_ref, digest_span_ok.size()));
memset(digest_buf_ok, 0, sizeof(digest_buf_ok));
NL_TEST_ASSERT(inSuite, sha256.Finish(digest_span_ok) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, 0 == memcmp(digest_span_ok.data(), digest_buf_ref, digest_span_ok.size()));
}
}
static void TestHMAC_SHA256_RawKey(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestCases = ArraySize(hmac_sha256_test_vectors_raw_key);
int numOfTestsExecuted = 0;
TestHMAC_sha mHMAC;
for (numOfTestsExecuted = 0; numOfTestsExecuted < numOfTestCases; numOfTestsExecuted++)
{
hmac_sha256_vector v = hmac_sha256_test_vectors_raw_key[numOfTestsExecuted];
size_t out_length = v.output_hash_length;
chip::Platform::ScopedMemoryBuffer<uint8_t> out_buffer;
out_buffer.Alloc(out_length);
NL_TEST_ASSERT(inSuite, out_buffer);
mHMAC.HMAC_SHA256(v.key, v.key_length, v.message, v.message_length, out_buffer.Get(), v.output_hash_length);
bool success = memcmp(v.output_hash, out_buffer.Get(), out_length) == 0;
NL_TEST_ASSERT(inSuite, success);
}
NL_TEST_ASSERT(inSuite, numOfTestsExecuted == numOfTestCases);
}
static void TestHMAC_SHA256_KeyHandle(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestCases = ArraySize(hmac_sha256_test_vectors_key_handle);
int numOfTestsExecuted = 0;
TestHMAC_sha mHMAC;
for (numOfTestsExecuted = 0; numOfTestsExecuted < numOfTestCases; numOfTestsExecuted++)
{
hmac_sha256_vector v = hmac_sha256_test_vectors_key_handle[numOfTestsExecuted];
size_t out_length = v.output_hash_length;
chip::Platform::ScopedMemoryBuffer<uint8_t> out_buffer;
out_buffer.Alloc(out_length);
NL_TEST_ASSERT(inSuite, out_buffer);
Crypto::DefaultSessionKeystore keystore;
Symmetric128BitsKeyByteArray keyMaterial;
memcpy(keyMaterial, v.key, v.key_length);
Hmac128KeyHandle keyHandle;
NL_TEST_ASSERT_SUCCESS(inSuite, keystore.CreateKey(keyMaterial, keyHandle));
mHMAC.HMAC_SHA256(keyHandle, v.message, v.message_length, out_buffer.Get(), v.output_hash_length);
bool success = memcmp(v.output_hash, out_buffer.Get(), out_length) == 0;
NL_TEST_ASSERT(inSuite, success);
keystore.DestroyKey(keyHandle);
}
NL_TEST_ASSERT(inSuite, numOfTestsExecuted == numOfTestCases);
}
static void TestHKDF_SHA256(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestCases = ArraySize(hkdf_sha256_test_vectors);
int numOfTestsExecuted = 0;
TestHKDF_sha mHKDF;
for (numOfTestsExecuted = 0; numOfTestsExecuted < numOfTestCases; numOfTestsExecuted++)
{
hkdf_sha256_vector v = hkdf_sha256_test_vectors[numOfTestsExecuted];
size_t out_length = v.output_key_material_length;
chip::Platform::ScopedMemoryBuffer<uint8_t> out_buffer;
out_buffer.Alloc(out_length);
NL_TEST_ASSERT(inSuite, out_buffer);
mHKDF.HKDF_SHA256(v.initial_key_material, v.initial_key_material_length, v.salt, v.salt_length, v.info, v.info_length,
out_buffer.Get(), v.output_key_material_length);
bool success = memcmp(v.output_key_material, out_buffer.Get(), out_length) == 0;
NL_TEST_ASSERT(inSuite, success);
}
NL_TEST_ASSERT(inSuite, numOfTestsExecuted == 3);
}
static void TestDRBG_InvalidInputs(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
CHIP_ERROR error = CHIP_NO_ERROR;
error = DRBG_get_bytes(nullptr, 10);
NL_TEST_ASSERT(inSuite, error == CHIP_ERROR_INVALID_ARGUMENT);
error = CHIP_NO_ERROR;
uint8_t buffer[5];
error = DRBG_get_bytes(buffer, 0);
NL_TEST_ASSERT(inSuite, error == CHIP_ERROR_INVALID_ARGUMENT);
}
static void TestDRBG_Output(nlTestSuite * inSuite, void * inContext)
{
// No good way to unit test a DRBG. Just validate that we get out something
CHIP_ERROR error = CHIP_ERROR_INVALID_ARGUMENT;
uint8_t out_buf[10] = { 0 };
uint8_t orig_buf[10] = { 0 };
error = DRBG_get_bytes(out_buf, sizeof(out_buf));
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(out_buf, orig_buf, sizeof(out_buf)) != 0);
}
static void TestECDSA_Signing_SHA256_Msg(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
const char * msg = "Hello World!";
size_t msg_length = strlen(msg);
Test_P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
P256ECDSASignature signature;
CHIP_ERROR signing_error = keypair.ECDSA_sign_msg(reinterpret_cast<const uint8_t *>(msg), msg_length, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_NO_ERROR);
CHIP_ERROR validation_error =
keypair.Pubkey().ECDSA_validate_msg_signature(reinterpret_cast<const uint8_t *>(msg), msg_length, signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_NO_ERROR);
}
static void TestECDSA_Signing_SHA256_Hash(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
const uint8_t msg[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F };
size_t msg_length = sizeof(msg);
Test_P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
// TODO: Need to make this large number (1k+) to catch some signature serialization corner cases
// but this is too slow on QEMU/embedded, so we need to parametrize. Signing with ECDSA
// is non-deterministic by design (since knowledge of the value `k` used allows recovery
// of the private key).
constexpr int kNumSigningIterations = 3;
for (int i = 0; i < kNumSigningIterations; ++i)
{
P256ECDSASignature signature;
uint8_t hash[Crypto::kSHA256_Hash_Length];
NL_TEST_ASSERT(inSuite, Hash_SHA256(&msg[0], msg_length, &hash[0]) == CHIP_NO_ERROR);
CHIP_ERROR signing_error = keypair.ECDSA_sign_msg(msg, msg_length, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_NO_ERROR);
CHIP_ERROR validation_error = keypair.Pubkey().ECDSA_validate_hash_signature(hash, sizeof(hash), signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_NO_ERROR);
if ((signing_error != CHIP_NO_ERROR) || (validation_error != CHIP_NO_ERROR))
{
ChipLogError(Crypto, "TestECDSA_Signing_SHA256_Hash failed after %d/%d iterations", i + 1, kNumSigningIterations);
break;
}
}
}
static void TestECDSA_ValidationFailsDifferentMessage(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
const char * msg = "Hello World!";
size_t msg_length = strlen(msg);
P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
P256ECDSASignature signature;
CHIP_ERROR signing_error = keypair.ECDSA_sign_msg(reinterpret_cast<const uint8_t *>(msg), msg_length, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_NO_ERROR);
const char * diff_msg = "NOT Hello World!";
size_t diff_msg_length = strlen(msg);
CHIP_ERROR validation_error =
keypair.Pubkey().ECDSA_validate_msg_signature(reinterpret_cast<const uint8_t *>(diff_msg), diff_msg_length, signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_ERROR_INVALID_SIGNATURE);
}
static void TestECDSA_ValidationFailIncorrectMsgSignature(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
const char * msg = "Hello World!";
size_t msg_length = strlen(msg);
P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
P256ECDSASignature signature;
CHIP_ERROR signing_error = keypair.ECDSA_sign_msg(reinterpret_cast<const uint8_t *>(msg), msg_length, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_NO_ERROR);
signature.Bytes()[0] = static_cast<uint8_t>(~signature.ConstBytes()[0]); // Flipping bits should invalidate the signature.
CHIP_ERROR validation_error =
keypair.Pubkey().ECDSA_validate_msg_signature(reinterpret_cast<const uint8_t *>(msg), msg_length, signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_ERROR_INVALID_SIGNATURE);
}
static void TestECDSA_ValidationFailIncorrectHashSignature(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
const uint8_t msg[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F };
size_t msg_length = sizeof(msg);
uint8_t hash[Crypto::kSHA256_Hash_Length];
NL_TEST_ASSERT(inSuite, Hash_SHA256(&msg[0], msg_length, &hash[0]) == CHIP_NO_ERROR);
P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
P256ECDSASignature signature;
CHIP_ERROR signing_error = keypair.ECDSA_sign_msg(msg, msg_length, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_NO_ERROR);
signature.Bytes()[0] = static_cast<uint8_t>(~signature.ConstBytes()[0]); // Flipping bits should invalidate the signature.
CHIP_ERROR validation_error = keypair.Pubkey().ECDSA_validate_hash_signature(hash, sizeof(hash), signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_ERROR_INVALID_SIGNATURE);
}
static void TestECDSA_SigningMsgInvalidParams(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
const uint8_t * msg = reinterpret_cast<const uint8_t *>("Hello World!");
size_t msg_length = strlen(reinterpret_cast<const char *>(msg));
P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
P256ECDSASignature signature;
CHIP_ERROR signing_error = keypair.ECDSA_sign_msg(nullptr, msg_length, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_ERROR_INVALID_ARGUMENT);
signing_error = CHIP_NO_ERROR;
signing_error = keypair.ECDSA_sign_msg(msg, 0, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_ERROR_INVALID_ARGUMENT);
signing_error = CHIP_NO_ERROR;
}
static void TestECDSA_ValidationMsgInvalidParam(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
const char * msg = "Hello World!";
size_t msg_length = strlen(msg);
P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
P256ECDSASignature signature;
CHIP_ERROR signing_error = keypair.ECDSA_sign_msg(reinterpret_cast<const uint8_t *>(msg), msg_length, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_NO_ERROR);
CHIP_ERROR validation_error = keypair.Pubkey().ECDSA_validate_msg_signature(nullptr, msg_length, signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_ERROR_INVALID_ARGUMENT);
validation_error = CHIP_NO_ERROR;
validation_error = keypair.Pubkey().ECDSA_validate_msg_signature(reinterpret_cast<const uint8_t *>(msg), 0, signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_ERROR_INVALID_ARGUMENT);
validation_error = CHIP_NO_ERROR;
}
static void TestECDSA_ValidationHashInvalidParam(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
const uint8_t msg[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F };
size_t msg_length = sizeof(msg);
uint8_t hash[Crypto::kSHA256_Hash_Length];
NL_TEST_ASSERT(inSuite, Hash_SHA256(&msg[0], msg_length, &hash[0]) == CHIP_NO_ERROR);
P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
P256ECDSASignature signature;
CHIP_ERROR signing_error = keypair.ECDSA_sign_msg(msg, msg_length, signature);
NL_TEST_ASSERT(inSuite, signing_error == CHIP_NO_ERROR);
CHIP_ERROR validation_error = keypair.Pubkey().ECDSA_validate_hash_signature(nullptr, sizeof(hash), signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_ERROR_INVALID_ARGUMENT);
signing_error = CHIP_NO_ERROR;
validation_error = keypair.Pubkey().ECDSA_validate_hash_signature(hash, sizeof(hash) - 5, signature);
NL_TEST_ASSERT(inSuite, validation_error == CHIP_ERROR_INVALID_ARGUMENT);
signing_error = CHIP_NO_ERROR;
}
static void TestECDH_EstablishSecret(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
Test_P256Keypair keypair1;
NL_TEST_ASSERT(inSuite, keypair1.Initialize(ECPKeyTarget::ECDH) == CHIP_NO_ERROR);
Test_P256Keypair keypair2;
NL_TEST_ASSERT(inSuite, keypair2.Initialize(ECPKeyTarget::ECDH) == CHIP_NO_ERROR);
P256ECDHDerivedSecret out_secret1;
out_secret1.Bytes()[0] = 0;
P256ECDHDerivedSecret out_secret2;
out_secret2.Bytes()[0] = 1;
CHIP_ERROR error = CHIP_NO_ERROR;
NL_TEST_ASSERT(inSuite,
memcmp(out_secret1.ConstBytes(), out_secret2.ConstBytes(), out_secret1.Capacity()) !=
0); // Validate that buffers are indeed different.
error = keypair2.ECDH_derive_secret(keypair1.Pubkey(), out_secret1);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
error = keypair1.ECDH_derive_secret(keypair2.Pubkey(), out_secret2);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
bool signature_lengths_match = out_secret1.Length() == out_secret2.Length();
NL_TEST_ASSERT(inSuite, signature_lengths_match);
bool signatures_match = (memcmp(out_secret1.ConstBytes(), out_secret2.ConstBytes(), out_secret1.Length()) == 0);
NL_TEST_ASSERT(inSuite, signatures_match);
}
#if CHIP_CRYPTO_OPENSSL
static void TestAddEntropySources(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
CHIP_ERROR error = add_entropy_source(test_entropy_source, nullptr, 10);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
uint8_t buffer[5];
NL_TEST_ASSERT(inSuite, DRBG_get_bytes(buffer, sizeof(buffer)) == CHIP_NO_ERROR);
}
#endif
#if CHIP_CRYPTO_MBEDTLS
static void TestAddEntropySources(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
CHIP_ERROR error = add_entropy_source(test_entropy_source, nullptr, 10);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
uint8_t buffer[5];
uint32_t test_entropy_source_call_count = gs_test_entropy_source_called;
NL_TEST_ASSERT(inSuite, DRBG_get_bytes(buffer, sizeof(buffer)) == CHIP_NO_ERROR);
for (int i = 0; i < 5000 * 2; i++)
{
(void) DRBG_get_bytes(buffer, sizeof(buffer));
}
NL_TEST_ASSERT(inSuite, gs_test_entropy_source_called > test_entropy_source_call_count);
}
#endif
#if CHIP_CRYPTO_PSA
static void TestAddEntropySources(nlTestSuite * inSuite, void * inContext) {}
#endif
#if CHIP_CRYPTO_BORINGSSL
static void TestAddEntropySources(nlTestSuite * inSuite, void * inContext) {}
#endif
#if CHIP_CRYPTO_PLATFORM
static void TestAddEntropySources(nlTestSuite * inSuite, void * inContext) {}
#endif
static void TestPBKDF2_SHA256_TestVectors(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestVectors = ArraySize(pbkdf2_sha256_test_vectors);
int numOfTestsRan = 0;
TestPBKDF2_sha256 pbkdf1;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const pbkdf2_test_vector * vector = pbkdf2_sha256_test_vectors[vectorIndex];
if (vector->plen > 0)
{
numOfTestsRan++;
chip::Platform::ScopedMemoryBuffer<uint8_t> out_key;
out_key.Alloc(vector->key_len);
NL_TEST_ASSERT(inSuite, out_key);
CHIP_ERROR err = pbkdf1.pbkdf2_sha256(vector->password, vector->plen, vector->salt, vector->slen, vector->iter,
vector->key_len, out_key.Get());
NL_TEST_ASSERT(inSuite, err == vector->result);
if (vector->result == CHIP_NO_ERROR)
{
NL_TEST_ASSERT(inSuite, memcmp(out_key.Get(), vector->key, vector->key_len) == 0);
}
}
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
}
static void TestP256_Keygen(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
const char * msg = "Test Message for Keygen";
const uint8_t * test_msg = Uint8::from_const_char(msg);
size_t msglen = strlen(msg);
P256ECDSASignature test_sig;
NL_TEST_ASSERT(inSuite, keypair.ECDSA_sign_msg(test_msg, msglen, test_sig) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, keypair.Pubkey().ECDSA_validate_msg_signature(test_msg, msglen, test_sig) == CHIP_NO_ERROR);
}
void TestCSR_Verify(nlTestSuite * inSuite, void * inContext)
{
Crypto::P256PublicKey pubKey;
CHIP_ERROR err;
// First case: there is trailing garbage in the CSR
{
const uint8_t kBadTrailingGarbageCsr[255] = {
0x30, 0x81, 0xda, 0x30, 0x81, 0x81, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x31, 0x0c, 0x30, 0x0a, 0x06, 0x03, 0x55, 0x04, 0x0b,
0x0c, 0x03, 0x43, 0x53, 0x41, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08,
0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x72, 0x48, 0xc0, 0x36, 0xf0, 0x12, 0x5f, 0xd1,
0x68, 0x92, 0x2d, 0xee, 0x57, 0x2b, 0x8e, 0x20, 0x9d, 0x97, 0xfa, 0x73, 0x92, 0xf1, 0xa0, 0x91, 0x0e, 0xfd, 0x04, 0x93,
0x66, 0x47, 0x3c, 0xa3, 0xf0, 0xa8, 0x47, 0xa1, 0xa3, 0x1e, 0x13, 0x3b, 0x67, 0x3b, 0x18, 0xca, 0x77, 0xd1, 0xea, 0xe3,
0x74, 0x93, 0x49, 0x8b, 0x9d, 0xdc, 0xef, 0xf9, 0xd5, 0x9b, 0x27, 0x19, 0xad, 0x6e, 0x90, 0xd2, 0xa0, 0x11, 0x30, 0x0f,
0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x0e, 0x31, 0x02, 0x30, 0x00, 0x30, 0x0a, 0x06, 0x08, 0x2a,
0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x20, 0x6a, 0x2e, 0x15, 0x34, 0x1b, 0xde,
0xcb, 0x8f, 0xd2, 0xfd, 0x35, 0x03, 0x89, 0x0e, 0xed, 0x23, 0x54, 0xff, 0xcb, 0x79, 0xf9, 0xcb, 0x40, 0x33, 0x59, 0xb4,
0x27, 0x69, 0xeb, 0x07, 0x3b, 0xd5, 0x02, 0x21, 0x00, 0xb0, 0x25, 0xc9, 0xc2, 0x21, 0xe8, 0x54, 0xcc, 0x08, 0x12, 0xf5,
0x10, 0x3a, 0x0b, 0x25, 0x20, 0x0a, 0x61, 0x38, 0xc8, 0x6f, 0x82, 0xa7, 0x51, 0x84, 0x61, 0xae, 0x93, 0x69, 0xe4, 0x74,
0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
Crypto::ClearSecretData(pubKey.Bytes(), pubKey.Length());
err = VerifyCertificateSigningRequest(&kBadTrailingGarbageCsr[0], sizeof(kBadTrailingGarbageCsr), pubKey);
// On first test case, check if CSRs are supported at all, and skip test if they are not.
if (err == CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE)
{
ChipLogError(Crypto, "The current platform does not support CSR parsing.");
return;
}
NL_TEST_ASSERT(inSuite, err != CHIP_NO_ERROR);
err = VerifyCertificateSigningRequestFormat(&kBadTrailingGarbageCsr[0], sizeof(kBadTrailingGarbageCsr));
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_UNSUPPORTED_CERT_FORMAT);
}
// Second case: correct CSR
{
const uint8_t kGoodCsr[] = {
0x30, 0x81, 0xca, 0x30, 0x70, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x31, 0x0c, 0x30, 0x0a, 0x06, 0x03, 0x55, 0x04, 0x0a,
0x0c, 0x03, 0x43, 0x53, 0x52, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06,
0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0xa3, 0xbe, 0xa1, 0xf5, 0x42, 0x01,
0x07, 0x3c, 0x4b, 0x75, 0x85, 0xd8, 0xe2, 0x98, 0xac, 0x2f, 0xf6, 0x98, 0xdb, 0xd9, 0x5b, 0xe0, 0x7e, 0xc1, 0x04,
0xd5, 0x73, 0xc5, 0xb0, 0x90, 0x77, 0x27, 0x00, 0x1e, 0x22, 0xc7, 0x89, 0x5e, 0x4d, 0x75, 0x07, 0x89, 0x82, 0x0f,
0x49, 0xb6, 0x59, 0xd5, 0xc5, 0x15, 0x7d, 0x93, 0xe6, 0x80, 0x5c, 0x70, 0x89, 0x0a, 0x43, 0x10, 0x3d, 0xeb, 0x3d,
0x4a, 0xa0, 0x00, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x05, 0x00, 0x03, 0x48,
0x00, 0x30, 0x45, 0x02, 0x20, 0x1d, 0x86, 0x21, 0xb4, 0xc2, 0xe1, 0xa9, 0xf3, 0xbc, 0xc8, 0x7c, 0xda, 0xb4, 0xb9,
0xc6, 0x8c, 0xd0, 0xe4, 0x9a, 0x9c, 0xef, 0x02, 0x93, 0x98, 0x27, 0x7e, 0x81, 0x21, 0x5d, 0x20, 0x9d, 0x32, 0x02,
0x21, 0x00, 0x8b, 0x6b, 0x49, 0xb6, 0x7d, 0x3e, 0x67, 0x9e, 0xb1, 0x22, 0xd3, 0x63, 0x82, 0x40, 0x4f, 0x49, 0xa4,
0xdc, 0x17, 0x35, 0xac, 0x4b, 0x7a, 0xbf, 0x52, 0x05, 0x58, 0x68, 0xe0, 0xaa, 0xd2, 0x8e,
};
const uint8_t kGoodCsrSubjectPublicKey[] = {
0x04, 0xa3, 0xbe, 0xa1, 0xf5, 0x42, 0x01, 0x07, 0x3c, 0x4b, 0x75, 0x85, 0xd8, 0xe2, 0x98, 0xac, 0x2f,
0xf6, 0x98, 0xdb, 0xd9, 0x5b, 0xe0, 0x7e, 0xc1, 0x04, 0xd5, 0x73, 0xc5, 0xb0, 0x90, 0x77, 0x27, 0x00,
0x1e, 0x22, 0xc7, 0x89, 0x5e, 0x4d, 0x75, 0x07, 0x89, 0x82, 0x0f, 0x49, 0xb6, 0x59, 0xd5, 0xc5, 0x15,
0x7d, 0x93, 0xe6, 0x80, 0x5c, 0x70, 0x89, 0x0a, 0x43, 0x10, 0x3d, 0xeb, 0x3d, 0x4a,
};
Crypto::ClearSecretData(pubKey.Bytes(), pubKey.Length());
err = VerifyCertificateSigningRequestFormat(&kGoodCsr[0], sizeof(kGoodCsr));
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = VerifyCertificateSigningRequest(&kGoodCsr[0], sizeof(kGoodCsr), pubKey);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
Crypto::P256PublicKey expected(kGoodCsrSubjectPublicKey);
NL_TEST_ASSERT(inSuite, pubKey.Matches(expected));
}
// Third case: bad signature
{
const uint8_t kBadSignatureSignatureCsr[] = {
0x30, 0x81, 0xca, 0x30, 0x70, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x31, 0x0c, 0x30, 0x0a, 0x06, 0x03, 0x55, 0x04, 0x0a,
0x0c, 0x03, 0x43, 0x53, 0x52, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06,
0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0xa3, 0xbe, 0xa1, 0xf5, 0x42, 0x01,
0x07, 0x3c, 0x4b, 0x75, 0x85, 0xd8, 0xe2, 0x98, 0xac, 0x2f, 0xf6, 0x98, 0xdb, 0xd9, 0x5b, 0xe0, 0x7e, 0xc1, 0x04,
0xd5, 0x73, 0xc5, 0xb0, 0x90, 0x77, 0x27, 0x00, 0x1e, 0x22, 0xc7, 0x89, 0x5e, 0x4d, 0x75, 0x07, 0x89, 0x82, 0x0f,
0x49, 0xb6, 0x59, 0xd5, 0xc5, 0x15, 0x7d, 0x93, 0xe6, 0x80, 0x5c, 0x70, 0x89, 0x0a, 0x43, 0x10, 0x3d, 0xeb, 0x3d,
0x4a, 0xa0, 0x00, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x05, 0x00, 0x03, 0x48,
0x00, 0x30, 0x45, 0x02, 0x20, 0x1d, 0x86, 0x21, 0xb4, 0xc2, 0xe1, 0xa9, 0xf3, 0xbc, 0xc8, 0x7c, 0xda, 0xb4, 0xb9,
0xc6, 0x8c, 0xd0, 0xe4, 0x9a, 0x9c, 0xef, 0x02, 0x93, 0x98, 0x27, 0x7e, 0x81, 0x21, 0x5d, 0x20, 0x9d, 0x32, 0x02,
0x21, 0x00, 0x8b, 0x6b, 0x49, 0xb6, 0x7d, 0x3e, 0x67, 0x9e, 0xb1, 0x21, 0xd3, 0x63, 0x82, 0x40, 0x4f, 0x49, 0xa4,
0xdc, 0x17, 0x35, 0xac, 0x4b, 0x7a, 0xbf, 0x52, 0x05, 0x58, 0x68, 0xe0, 0xaa, 0xd2, 0x8e,
};
Crypto::ClearSecretData(pubKey.Bytes(), pubKey.Length());
err = VerifyCertificateSigningRequestFormat(&kBadSignatureSignatureCsr[0], sizeof(kBadSignatureSignatureCsr));
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = VerifyCertificateSigningRequest(&kBadSignatureSignatureCsr[0], sizeof(kBadSignatureSignatureCsr), pubKey);
NL_TEST_ASSERT(inSuite, err != CHIP_NO_ERROR);
}
// Fourth case: CSR too big
{
const uint8_t kBadTooBigCsr[] = {
0x30, 0x81, 0xda, 0x30, 0x81, 0x81, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x31, 0x0c, 0x30, 0x0a, 0x06, 0x03, 0x55, 0x04, 0x0b,
0x0c, 0x03, 0x43, 0x53, 0x41, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08,
0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x72, 0x48, 0xc0, 0x36, 0xf0, 0x12, 0x5f, 0xd1,
0x68, 0x92, 0x2d, 0xee, 0x57, 0x2b, 0x8e, 0x20, 0x9d, 0x97, 0xfa, 0x73, 0x92, 0xf1, 0xa0, 0x91, 0x0e, 0xfd, 0x04, 0x93,
0x66, 0x47, 0x3c, 0xa3, 0xf0, 0xa8, 0x47, 0xa1, 0xa3, 0x1e, 0x13, 0x3b, 0x67, 0x3b, 0x18, 0xca, 0x77, 0xd1, 0xea, 0xe3,
0x74, 0x93, 0x49, 0x8b, 0x9d, 0xdc, 0xef, 0xf9, 0xd5, 0x9b, 0x27, 0x19, 0xad, 0x6e, 0x90, 0xd2, 0xa0, 0x11, 0x30, 0x0f,
0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x0e, 0x31, 0x02, 0x30, 0x00, 0x30, 0x0a, 0x06, 0x08, 0x2a,
0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x20, 0x6a, 0x2e, 0x15, 0x34, 0x1b, 0xde,
0xcb, 0x8f, 0xd2, 0xfd, 0x35, 0x03, 0x89, 0x0e, 0xed, 0x23, 0x54, 0xff, 0xcb, 0x79, 0xf9, 0xcb, 0x40, 0x33, 0x59, 0xb4,
0x27, 0x69, 0xeb, 0x07, 0x3b, 0xd5, 0x02, 0x21, 0x00, 0xb0, 0x25, 0xc9, 0xc2, 0x21, 0xe8, 0x54, 0xcc, 0x08, 0x12, 0xf5,
0x10, 0x3a, 0x0b, 0x25, 0x20, 0x0a, 0x61, 0x38, 0xc8, 0x6f, 0x82, 0xa7, 0x51, 0x84, 0x61, 0xae, 0x93, 0x69, 0xe4, 0x74,
0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
};
Crypto::ClearSecretData(pubKey.Bytes(), pubKey.Length());
err = VerifyCertificateSigningRequestFormat(&kBadTooBigCsr[0], sizeof(kBadTooBigCsr));
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_UNSUPPORTED_CERT_FORMAT);
err = VerifyCertificateSigningRequest(&kBadTooBigCsr[0], sizeof(kBadTooBigCsr), pubKey);
NL_TEST_ASSERT(inSuite, err != CHIP_NO_ERROR);
}
// Fifth case: obviously invalid CSR (1/2)
{
const uint8_t kTooSmallCsr[] = {
0x30, 0x81, 0xda, 0x30, 0x81, 0x81, 0x02, 0x01, 0x00, 0x30,
};
Crypto::ClearSecretData(pubKey.Bytes(), pubKey.Length());
err = VerifyCertificateSigningRequestFormat(&kTooSmallCsr[0], sizeof(kTooSmallCsr));
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_UNSUPPORTED_CERT_FORMAT);
err = VerifyCertificateSigningRequest(&kTooSmallCsr[0], sizeof(kTooSmallCsr), pubKey);
NL_TEST_ASSERT(inSuite, err != CHIP_NO_ERROR);
}
// Sixth case: obviously invalid CSR (2/2)
{
const uint8_t kNotSequenceCsr[] = {
0x31, 0x81, 0xca, 0x30, 0x70, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x31, 0x0c, 0x30, 0x0a, 0x06, 0x03, 0x55, 0x04, 0x0a,
0x0c, 0x03, 0x43, 0x53, 0x52, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06,
0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0xa3, 0xbe, 0xa1, 0xf5, 0x42, 0x01,
0x07, 0x3c, 0x4b, 0x75, 0x85, 0xd8, 0xe2, 0x98, 0xac, 0x2f, 0xf6, 0x98, 0xdb, 0xd9, 0x5b, 0xe0, 0x7e, 0xc1, 0x04,
0xd5, 0x73, 0xc5, 0xb0, 0x90, 0x77, 0x27, 0x00, 0x1e, 0x22, 0xc7, 0x89, 0x5e, 0x4d, 0x75, 0x07, 0x89, 0x82, 0x0f,
0x49, 0xb6, 0x59, 0xd5, 0xc5, 0x15, 0x7d, 0x93, 0xe6, 0x80, 0x5c, 0x70, 0x89, 0x0a, 0x43, 0x10, 0x3d, 0xeb, 0x3d,
0x4a, 0xa0, 0x00, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x05, 0x00, 0x03, 0x48,
0x00, 0x30, 0x45, 0x02, 0x20, 0x1d, 0x86, 0x21, 0xb4, 0xc2, 0xe1, 0xa9, 0xf3, 0xbc, 0xc8, 0x7c, 0xda, 0xb4, 0xb9,
0xc6, 0x8c, 0xd0, 0xe4, 0x9a, 0x9c, 0xef, 0x02, 0x93, 0x98, 0x27, 0x7e, 0x81, 0x21, 0x5d, 0x20, 0x9d, 0x32, 0x02,
0x21, 0x00, 0x8b, 0x6b, 0x49, 0xb6, 0x7d, 0x3e, 0x67, 0x9e, 0xb1, 0x22, 0xd3, 0x63, 0x82, 0x40, 0x4f, 0x49, 0xa4,
0xdc, 0x17, 0x35, 0xac, 0x4b, 0x7a, 0xbf, 0x52, 0x05, 0x58, 0x68, 0xe0, 0xaa, 0xd2, 0x8e,
};
Crypto::ClearSecretData(pubKey.Bytes(), pubKey.Length());
err = VerifyCertificateSigningRequestFormat(&kNotSequenceCsr[0], sizeof(kNotSequenceCsr));
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_UNSUPPORTED_CERT_FORMAT);
err = VerifyCertificateSigningRequest(&kNotSequenceCsr[0], sizeof(kNotSequenceCsr), pubKey);
NL_TEST_ASSERT(inSuite, err != CHIP_NO_ERROR);
}
}
void TestCSR_GenDirect(nlTestSuite * inSuite, void * inContext)
{
uint8_t csrBuf[kMIN_CSR_Buffer_Size];
ClearSecretData(csrBuf);
MutableByteSpan csrSpan(csrBuf);
Test_P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
// Validate case of buffer too small
uint8_t csrBufTooSmall[kMIN_CSR_Buffer_Size - 1];
MutableByteSpan csrSpanTooSmall(csrBufTooSmall);
NL_TEST_ASSERT(inSuite, GenerateCertificateSigningRequest(&keypair, csrSpanTooSmall) == CHIP_ERROR_BUFFER_TOO_SMALL);
// Validate case of null keypair
NL_TEST_ASSERT(inSuite, GenerateCertificateSigningRequest(nullptr, csrSpan) == CHIP_ERROR_INVALID_ARGUMENT);
// Validate normal case
ClearSecretData(csrBuf);
NL_TEST_ASSERT(inSuite, GenerateCertificateSigningRequest(&keypair, csrSpan) == CHIP_NO_ERROR);
P256PublicKey pubkey;
CHIP_ERROR err = VerifyCertificateSigningRequest(csrSpan.data(), csrSpan.size(), pubkey);
if (err != CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE)
{
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, pubkey.Length() == kP256_PublicKey_Length);
NL_TEST_ASSERT(inSuite, memcmp(pubkey.ConstBytes(), keypair.Pubkey().ConstBytes(), pubkey.Length()) == 0);
// Let's corrupt the CSR buffer and make sure it fails to verify
size_t length = csrSpan.size();
csrBuf[length - 2] = (uint8_t) (csrBuf[length - 2] + 1);
csrBuf[length - 1] = (uint8_t) (csrBuf[length - 1] + 1);
NL_TEST_ASSERT(inSuite, VerifyCertificateSigningRequest(csrSpan.data(), csrSpan.size(), pubkey) != CHIP_NO_ERROR);
}
else
{
ChipLogError(Crypto, "The current platform does not support CSR parsing.");
}
}
static void TestCSR_GenByKeypair(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
uint8_t csr[kMIN_CSR_Buffer_Size];
size_t length = sizeof(csr);
Test_P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, keypair.NewCertificateSigningRequest(csr, length) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, length > 0);
P256PublicKey pubkey;
CHIP_ERROR err = VerifyCertificateSigningRequest(csr, length, pubkey);
if (err != CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE)
{
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, pubkey.Length() == kP256_PublicKey_Length);
NL_TEST_ASSERT(inSuite, memcmp(pubkey.ConstBytes(), keypair.Pubkey().ConstBytes(), pubkey.Length()) == 0);
// Let's corrupt the CSR buffer and make sure it fails to verify
csr[length - 2] = (uint8_t) (csr[length - 2] + 1);
csr[length - 1] = (uint8_t) (csr[length - 1] + 1);
NL_TEST_ASSERT(inSuite, VerifyCertificateSigningRequest(csr, length, pubkey) != CHIP_NO_ERROR);
}
else
{
ChipLogError(Crypto, "The current platform does not support CSR parsing.");
}
}
static void TestKeypair_Serialize(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
Test_P256Keypair keypair;
NL_TEST_ASSERT(inSuite, keypair.Initialize(ECPKeyTarget::ECDSA) == CHIP_NO_ERROR);
P256SerializedKeypair serialized;
NL_TEST_ASSERT(inSuite, keypair.Serialize(serialized) == CHIP_NO_ERROR);
Test_P256Keypair keypair_dup;
NL_TEST_ASSERT(inSuite, keypair_dup.Deserialize(serialized) == CHIP_NO_ERROR);
const char * msg = "Test Message for Keygen";
const uint8_t * test_msg = Uint8::from_const_char(msg);
size_t msglen = strlen(msg);
P256ECDSASignature test_sig;
NL_TEST_ASSERT(inSuite, keypair.ECDSA_sign_msg(test_msg, msglen, test_sig) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, keypair_dup.Pubkey().ECDSA_validate_msg_signature(test_msg, msglen, test_sig) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, keypair_dup.ECDSA_sign_msg(test_msg, msglen, test_sig) == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, keypair.Pubkey().ECDSA_validate_msg_signature(test_msg, msglen, test_sig) == CHIP_NO_ERROR);
}
static void TestSPAKE2P_spake2p_FEMul(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
uint8_t fe_out[kMAX_FE_Length];
int numOfTestVectors = ArraySize(fe_mul_tvs);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const struct spake2p_fe_mul_tv * vector = fe_mul_tvs[vectorIndex];
TestSpake2p_P256_SHA256_HKDF_HMAC spake2p;
CHIP_ERROR err = spake2p.Init(nullptr, 0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FELoad(vector->fe1, vector->fe1_len, spake2p.w0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FELoad(vector->fe2, vector->fe2_len, spake2p.w1);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FEMul(spake2p.xy, spake2p.w0, spake2p.w1);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FEWrite(spake2p.xy, fe_out, sizeof(fe_out));
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(fe_out, vector->fe_out, vector->fe_out_len) == 0);
numOfTestsRan += 1;
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
NL_TEST_ASSERT(inSuite, numOfTestsRan == numOfTestVectors);
}
static void TestSPAKE2P_spake2p_FELoadWrite(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
uint8_t fe_out[kMAX_FE_Length];
int numOfTestVectors = ArraySize(fe_rw_tvs);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const struct spake2p_fe_rw_tv * vector = fe_rw_tvs[vectorIndex];
TestSpake2p_P256_SHA256_HKDF_HMAC spake2p;
CHIP_ERROR err = spake2p.Init(nullptr, 0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FELoad(vector->fe_in, vector->fe_in_len, spake2p.w0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FEWrite(spake2p.w0, fe_out, sizeof(fe_out));
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(fe_out, vector->fe_out, vector->fe_out_len) == 0);
numOfTestsRan += 1;
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
NL_TEST_ASSERT(inSuite, numOfTestsRan == numOfTestVectors);
}
static void TestSPAKE2P_spake2p_Mac(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
uint8_t mac[kMAX_Hash_Length];
MutableByteSpan mac_span{ mac };
int numOfTestVectors = ArraySize(hmac_tvs);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const struct spake2p_hmac_tv * vector = hmac_tvs[vectorIndex];
TestSpake2p_P256_SHA256_HKDF_HMAC spake2p;
CHIP_ERROR err = spake2p.Init(nullptr, 0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.Mac(vector->key, vector->key_len, vector->input, vector->input_len, mac_span);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(mac_span.data(), vector->output, vector->output_len) == 0);
err = spake2p.MacVerify(vector->key, vector->key_len, vector->output, vector->output_len, vector->input, vector->input_len);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
numOfTestsRan += 1;
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
NL_TEST_ASSERT(inSuite, numOfTestsRan == numOfTestVectors);
}
static void TestSPAKE2P_spake2p_PointMul(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
uint8_t output[kMAX_Point_Length];
size_t out_len = sizeof(output);
int numOfTestVectors = ArraySize(point_mul_tvs);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
out_len = sizeof(output);
const struct spake2p_point_mul_tv * vector = point_mul_tvs[vectorIndex];
TestSpake2p_P256_SHA256_HKDF_HMAC spake2p;
CHIP_ERROR err = spake2p.Init(nullptr, 0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointLoad(vector->point, vector->point_len, spake2p.L);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FELoad(vector->scalar, vector->scalar_len, spake2p.w0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointMul(spake2p.X, spake2p.L, spake2p.w0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointWrite(spake2p.X, output, out_len);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(output, vector->out_point, vector->out_point_len) == 0);
numOfTestsRan += 1;
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
NL_TEST_ASSERT(inSuite, numOfTestsRan == numOfTestVectors);
}
static void TestSPAKE2P_spake2p_PointMulAdd(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
uint8_t output[kMAX_Point_Length];
size_t out_len = sizeof(output);
int numOfTestVectors = ArraySize(point_muladd_tvs);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
out_len = sizeof(output);
const struct spake2p_point_muladd_tv * vector = point_muladd_tvs[vectorIndex];
TestSpake2p_P256_SHA256_HKDF_HMAC spake2p;
CHIP_ERROR err = spake2p.Init(nullptr, 0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointLoad(vector->point1, vector->point1_len, spake2p.X);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointLoad(vector->point2, vector->point2_len, spake2p.Y);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FELoad(vector->scalar1, vector->scalar1_len, spake2p.w0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.FELoad(vector->scalar2, vector->scalar2_len, spake2p.w1);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointAddMul(spake2p.L, spake2p.X, spake2p.w0, spake2p.Y, spake2p.w1);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointWrite(spake2p.L, output, out_len);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(output, vector->out_point, vector->out_point_len) == 0);
numOfTestsRan += 1;
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
NL_TEST_ASSERT(inSuite, numOfTestsRan == numOfTestVectors);
}
static void TestSPAKE2P_spake2p_PointLoadWrite(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
uint8_t output[kMAX_Point_Length];
size_t out_len = sizeof(output);
int numOfTestVectors = ArraySize(point_rw_tvs);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
out_len = sizeof(output);
const struct spake2p_point_rw_tv * vector = point_rw_tvs[vectorIndex];
TestSpake2p_P256_SHA256_HKDF_HMAC spake2p;
CHIP_ERROR err = spake2p.Init(nullptr, 0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointLoad(vector->point, vector->point_len, spake2p.L);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointWrite(spake2p.L, output, out_len);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(output, vector->point, vector->point_len) == 0);
numOfTestsRan += 1;
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
NL_TEST_ASSERT(inSuite, numOfTestsRan == numOfTestVectors);
}
static void TestSPAKE2P_spake2p_PointIsValid(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
int numOfTestVectors = ArraySize(point_valid_tvs);
int numOfTestsRan = 0;
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const struct spake2p_point_valid_tv * vector = point_valid_tvs[vectorIndex];
TestSpake2p_P256_SHA256_HKDF_HMAC spake2p;
CHIP_ERROR err = spake2p.Init(nullptr, 0);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = spake2p.PointLoad(vector->point, vector->point_len, spake2p.L);
// The underlying implementation may (i.e. should) check for validity when loading a point. Let's catch this case.
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR || vector->valid == 0);
err = spake2p.PointIsValid(spake2p.L);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR || vector->valid == 0);
numOfTestsRan += 1;
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
NL_TEST_ASSERT(inSuite, numOfTestsRan == numOfTestVectors);
}
// We need to "generate" specific field elements
// to do so we need to override the specific method
class Test_Spake2p_P256_SHA256_HKDF_HMAC : public Spake2p_P256_SHA256_HKDF_HMAC
{
public:
CHIP_ERROR TestSetFE(const uint8_t * fe_in, size_t fe_in_len)
{
if (fe_in_len > kMAX_FE_Length)
{
return CHIP_ERROR_INTERNAL;
}
memcpy(fe, fe_in, fe_in_len);
fe_len = fe_in_len;
return CHIP_NO_ERROR;
}
CHIP_ERROR FEGenerate(void * feout) override { return FELoad(fe, fe_len, feout); }
private:
uint8_t fe[kMAX_FE_Length];
size_t fe_len;
};
static void TestSPAKE2P_RFC(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
CHIP_ERROR error = CHIP_NO_ERROR;
uint8_t L[kMAX_Point_Length];
size_t L_len = sizeof(L);
uint8_t Z[kMAX_Point_Length];
uint8_t V[kMAX_Point_Length];
uint8_t X[kMAX_Point_Length];
size_t X_len = sizeof(X);
uint8_t Y[kMAX_Point_Length];
size_t Y_len = sizeof(Y);
uint8_t Pverifier[kMAX_Hash_Length];
size_t Pverifier_len = sizeof(Pverifier);
uint8_t Vverifier[kMAX_Hash_Length];
size_t Vverifier_len = sizeof(Vverifier);
DefaultSessionKeystore keystore;
int numOfTestVectors = ArraySize(rfc_tvs);
int numOfTestsRan = 0;
// static_assert(sizeof(Spake2p_Context) < 1024, "Allocate more bytes for Spake2p Context");
// printf("Sizeof spake2pcontext %lu\n", sizeof(Spake2p_Context));
// printf("Sizeof mbedtls_sha256_context %lu\n", sizeof(mbedtls_sha256_context));
// printf("Sizeof SHA256_CTX %lu\n", sizeof(SHA256_CTX));
for (int vectorIndex = 0; vectorIndex < numOfTestVectors; vectorIndex++)
{
const struct spake2p_rfc_tv * vector = rfc_tvs[vectorIndex];
Test_Spake2p_P256_SHA256_HKDF_HMAC Verifier;
Test_Spake2p_P256_SHA256_HKDF_HMAC Prover;
// First start the prover
error = Prover.Init(vector->context, vector->context_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
error = Prover.BeginProver(vector->prover_identity, vector->prover_identity_len, vector->verifier_identity,
vector->verifier_identity_len, vector->w0, vector->w0_len, vector->w1, vector->w1_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// Monkey patch the generated x coordinate
error = Prover.TestSetFE(vector->x, vector->x_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// Compute the first round and send it to the verifier
X_len = sizeof(X);
error = Prover.ComputeRoundOne(nullptr, 0, X, &X_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, X_len == vector->X_len);
NL_TEST_ASSERT(inSuite, memcmp(X, vector->X, vector->X_len) == 0);
// Start up the verifier
error = Verifier.Init(vector->context, vector->context_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// First pre-compute L (accessories with dynamic setup codes will do this)
L_len = sizeof(L);
error = Verifier.ComputeL(L, &L_len, vector->w1, vector->w1_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, L_len == vector->L_len);
NL_TEST_ASSERT(inSuite, memcmp(L, vector->L, vector->L_len) == 0);
// Start up the verifier
error = Verifier.BeginVerifier(vector->verifier_identity, vector->verifier_identity_len, vector->prover_identity,
vector->prover_identity_len, vector->w0, vector->w0_len, L, L_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// Monkey patch the generated y coordinate
error = Verifier.TestSetFE(vector->y, vector->y_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// Compute the first round and send it to the prover
Y_len = sizeof(Y);
error = Verifier.ComputeRoundOne(X, X_len, Y, &Y_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, Y_len == vector->Y_len);
NL_TEST_ASSERT(inSuite, memcmp(Y, vector->Y, vector->Y_len) == 0);
// Compute the second round to also send to the prover
Vverifier_len = sizeof(Vverifier);
error = Verifier.ComputeRoundTwo(X, X_len, Vverifier, &Vverifier_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, Vverifier_len == vector->MAC_KcB_len);
NL_TEST_ASSERT(inSuite, memcmp(Vverifier, vector->MAC_KcB, vector->MAC_KcB_len) == 0);
error = Verifier.PointWrite(Verifier.Z, Z, kP256_Point_Length);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(Z, vector->Z, vector->Z_len) == 0);
error = Verifier.PointWrite(Verifier.V, V, kP256_Point_Length);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(V, vector->V, vector->V_len) == 0);
// Now the prover computes round 2
Pverifier_len = sizeof(Pverifier);
error = Prover.ComputeRoundTwo(Y, Y_len, Pverifier, &Pverifier_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, Pverifier_len == vector->MAC_KcA_len);
NL_TEST_ASSERT(inSuite, memcmp(Pverifier, vector->MAC_KcA, vector->MAC_KcA_len) == 0);
error = Prover.PointWrite(Verifier.Z, Z, kP256_Point_Length);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(Z, vector->Z, vector->Z_len) == 0);
error = Prover.PointWrite(Verifier.V, V, kP256_Point_Length);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, memcmp(V, vector->V, vector->V_len) == 0);
// Both sides now confirm the keys they received
error = Prover.KeyConfirm(Vverifier, Vverifier_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
error = Verifier.KeyConfirm(Pverifier, Pverifier_len);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// Import HKDF key from the test vector to the keystore
HkdfKeyHandle vectorKe;
error = keystore.CreateKey(ByteSpan(vector->Ke, vector->Ke_len), vectorKe);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
// Verify that both sides generated the same HKDF key as in the test vector
// Since the HKDF keys may not be availabe in the raw form, do not compare them directly,
// but rather check if the same attestation challenge is derived from
HkdfKeyHandle PKe;
error = Prover.GetKeys(keystore, PKe);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
AssertKeysEqual(inSuite, keystore, PKe, vectorKe);
HkdfKeyHandle VKe;
error = Verifier.GetKeys(keystore, VKe);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
AssertKeysEqual(inSuite, keystore, VKe, vectorKe);
keystore.DestroyKey(vectorKe);
keystore.DestroyKey(PKe);
keystore.DestroyKey(VKe);
numOfTestsRan += 1;
}
NL_TEST_ASSERT(inSuite, numOfTestsRan > 0);
NL_TEST_ASSERT(inSuite, numOfTestsRan == numOfTestVectors);
}
static void TestSPAKE2P_Reuse(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
Test_Spake2p_P256_SHA256_HKDF_HMAC spake2;
// Veriy Init -> Clear -> Init sequence works and does not leak memory
NL_TEST_ASSERT(inSuite, spake2.Init(nullptr, 0) == CHIP_NO_ERROR);
spake2.Clear();
NL_TEST_ASSERT(inSuite, spake2.Init(nullptr, 0) == CHIP_NO_ERROR);
// Even without an explicit Clear, Init does not leak memory
NL_TEST_ASSERT(inSuite, spake2.Init(nullptr, 0) == CHIP_NO_ERROR);
}
static void TestCompressedFabricIdentifier(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
// Data from spec test vector (see Operational Discovery section)
const uint8_t kRootPublicKey[] = {
0x04, 0x4a, 0x9f, 0x42, 0xb1, 0xca, 0x48, 0x40, 0xd3, 0x72, 0x92, 0xbb, 0xc7, 0xf6, 0xa7, 0xe1, 0x1e,
0x22, 0x20, 0x0c, 0x97, 0x6f, 0xc9, 0x00, 0xdb, 0xc9, 0x8a, 0x7a, 0x38, 0x3a, 0x64, 0x1c, 0xb8, 0x25,
0x4a, 0x2e, 0x56, 0xd4, 0xe2, 0x95, 0xa8, 0x47, 0x94, 0x3b, 0x4e, 0x38, 0x97, 0xc4, 0xa7, 0x73, 0xe9,
0x30, 0x27, 0x7b, 0x4d, 0x9f, 0xbe, 0xde, 0x8a, 0x05, 0x26, 0x86, 0xbf, 0xac, 0xfa,
};
P256PublicKey root_public_key(kRootPublicKey);
constexpr uint64_t kFabricId = 0x2906C908D115D362;
const uint8_t kExpectedCompressedFabricIdentifier[] = {
0x87, 0xe1, 0xb0, 0x04, 0xe2, 0x35, 0xa1, 0x30,
};
static_assert(sizeof(kExpectedCompressedFabricIdentifier) == kCompressedFabricIdentifierSize,
"Expected compressed fabric identifier must the correct size");
const uint64_t kExpectedCompressedFabricIdentifierInt = 0x87e1b004e235a130;
uint8_t compressed_fabric_id[kCompressedFabricIdentifierSize];
MutableByteSpan compressed_fabric_id_span(compressed_fabric_id);
ClearSecretData(compressed_fabric_id, sizeof(compressed_fabric_id));
uint64_t compressed_fabric_id_int;
CHIP_ERROR error = GenerateCompressedFabricId(root_public_key, kFabricId, compressed_fabric_id_span);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, compressed_fabric_id_span.size() == kCompressedFabricIdentifierSize);
NL_TEST_ASSERT(inSuite,
0 ==
memcmp(compressed_fabric_id_span.data(), kExpectedCompressedFabricIdentifier,
sizeof(kExpectedCompressedFabricIdentifier)));
// Test bigger input buffer than needed
uint8_t compressed_fabric_id_large[3 * kCompressedFabricIdentifierSize];
MutableByteSpan compressed_fabric_id_large_span(compressed_fabric_id_large);
ClearSecretData(compressed_fabric_id_large, sizeof(compressed_fabric_id_large));
error = GenerateCompressedFabricId(root_public_key, kFabricId, compressed_fabric_id_large_span);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, compressed_fabric_id_large_span.size() == kCompressedFabricIdentifierSize);
NL_TEST_ASSERT(inSuite,
0 ==
memcmp(compressed_fabric_id_large_span.data(), kExpectedCompressedFabricIdentifier,
sizeof(kExpectedCompressedFabricIdentifier)));
// Test smaller buffer than needed
MutableByteSpan compressed_fabric_id_small_span(compressed_fabric_id, kCompressedFabricIdentifierSize - 1);
error = GenerateCompressedFabricId(root_public_key, kFabricId, compressed_fabric_id_small_span);
NL_TEST_ASSERT(inSuite, error == CHIP_ERROR_BUFFER_TOO_SMALL);
// Test overload that writes to an integer output type.
error = GenerateCompressedFabricId(root_public_key, kFabricId, compressed_fabric_id_int);
NL_TEST_ASSERT(inSuite, error == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, compressed_fabric_id_int == kExpectedCompressedFabricIdentifierInt);
// Test invalid public key
const uint8_t kInvalidRootPublicKey[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
P256PublicKey invalid_root_public_key(kInvalidRootPublicKey);
error = GenerateCompressedFabricId(invalid_root_public_key, kFabricId, compressed_fabric_id_span);
NL_TEST_ASSERT(inSuite, error == CHIP_ERROR_INVALID_ARGUMENT);
}
static void TestPubkey_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
P256PublicKey publicKey;
ByteSpan cert;
ByteSpan pubkeySpan;
for (size_t i = 0; i < gNumTestCerts; i++)
{
TestCert certType = TestCerts::gTestCerts[i];
err = GetTestCert(certType, TestCertLoadFlags::kDERForm, cert);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = GetTestCertPubkey(certType, pubkeySpan);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = ExtractPubkeyFromX509Cert(cert, publicKey);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, publicKey.Length() == pubkeySpan.size());
NL_TEST_ASSERT(inSuite, memcmp(publicKey.ConstBytes(), pubkeySpan.data(), pubkeySpan.size()) == 0);
}
}
static void TestX509_VerifyAttestationCertificateFormat(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
struct ValidationTestCase
{
ByteSpan cert;
AttestationCertType type;
CHIP_ERROR expectedError;
};
// clang-format off
static ValidationTestCase sValidationTestCases[] = {
// cert type Expected Error
// ===============================================================================================================
{ sTestCert_PAA_FFF1_Cert, Crypto::AttestationCertType::kPAA, CHIP_NO_ERROR },
{ sTestCert_PAI_FFF1_8000_Cert, Crypto::AttestationCertType::kPAI, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8002_0017_Cert, Crypto::AttestationCertType::kDAC, CHIP_NO_ERROR },
{ ByteSpan(), Crypto::AttestationCertType::kDAC, CHIP_ERROR_INVALID_ARGUMENT },
{ sTestCert_PAI_FFF2_NoPID_FB_Cert, Crypto::AttestationCertType::kDAC, CHIP_ERROR_INTERNAL },
{ sTestCert_DAC_FFF2_8006_0025_ValInFuture_Cert, Crypto::AttestationCertType::kPAA, CHIP_ERROR_INTERNAL },
{ ByteSpan{kPaaWithNoPathlen}, Crypto::AttestationCertType::kPAA, CHIP_NO_ERROR },
{ ByteSpan{kPaiPathLenMissing}, Crypto::AttestationCertType::kPAI, CHIP_ERROR_INTERNAL },
{ ByteSpan{kPaiPathLen1}, Crypto::AttestationCertType::kPAI, CHIP_ERROR_INTERNAL },
{ ByteSpan{kPaaPathLen2}, Crypto::AttestationCertType::kPAA, CHIP_ERROR_INTERNAL },
{ ByteSpan{kWrongPathLenFormat}, Crypto::AttestationCertType::kPAI, CHIP_ERROR_INTERNAL },
};
// clang-format on
int case_idx = 0;
for (auto & testCase : sValidationTestCases)
{
ByteSpan cert = testCase.cert;
CHIP_ERROR err = VerifyAttestationCertificateFormat(cert, testCase.type);
if (err != testCase.expectedError)
{
ChipLogError(Crypto, "Failed TestX509_VerifyAttestationCertificateFormat sub-case %d, err: %" CHIP_ERROR_FORMAT,
case_idx, err.Format());
}
NL_TEST_ASSERT(inSuite, err == testCase.expectedError);
++case_idx;
}
}
static void TestX509_CertChainValidation(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
struct ValidationTestCase
{
ByteSpan root;
ByteSpan ica;
ByteSpan leaf;
CHIP_ERROR expectedError;
CertificateChainValidationResult expectedValResult;
};
// clang-format off
static ValidationTestCase sValidationTestCases[] = {
// root ica leaf Expected Error Expected Validation Result
// ======================================================================================================================================================================================================================
{ sTestCert_PAA_FFF1_Cert, sTestCert_PAI_FFF1_8000_Cert, sTestCert_DAC_FFF1_8000_0000_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_FFF1_Cert, sTestCert_PAI_FFF1_8000_Cert, sTestCert_DAC_FFF1_8000_0000_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_NoPID_Cert, sTestCert_DAC_FFF2_8002_0017_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_NoPID_FB_Cert, sTestCert_DAC_FFF2_8003_0018_FB_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_8004_FB_Cert, sTestCert_DAC_FFF2_8004_001C_FB_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
// Valid cases with PAA, PAI, DAC time validity in the past or future:
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_8004_FB_Cert, sTestCert_DAC_FFF2_8004_0020_ValInPast_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_8004_FB_Cert, sTestCert_DAC_FFF2_8004_0021_ValInFuture_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_8005_ValInPast_Cert, sTestCert_DAC_FFF2_8005_0022_ValInPast_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_8005_ValInFuture_Cert, sTestCert_DAC_FFF2_8005_0023_ValInFuture_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_FFF2_ValInPast_Cert, sTestCert_PAI_FFF2_8006_ValInPast_Cert, sTestCert_DAC_FFF2_8006_0024_ValInPast_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
{ sTestCert_PAA_FFF2_ValInFuture_Cert, sTestCert_PAI_FFF2_8006_ValInFuture_Cert, sTestCert_DAC_FFF2_8006_0025_ValInFuture_Cert, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
// Valid cases without intermediate:
{ sTestCert_Root01_DER, ByteSpan(), sTestCert_Node01_02_DER, CHIP_NO_ERROR, CertificateChainValidationResult::kSuccess },
// Error cases with invalid (empty Span) inputs:
{ ByteSpan(), sTestCert_PAI_FFF1_8000_Cert, sTestCert_DAC_FFF1_8000_0000_Cert, CHIP_ERROR_INVALID_ARGUMENT, CertificateChainValidationResult::kRootArgumentInvalid },
{ sTestCert_PAA_FFF1_Cert, sTestCert_PAI_FFF1_8000_Cert, ByteSpan(), CHIP_ERROR_INVALID_ARGUMENT, CertificateChainValidationResult::kLeafArgumentInvalid },
// Error case with empty intermediate but the leaf doesn't chain up to the root in this case:
{ sTestCert_PAA_FFF1_Cert, ByteSpan(), sTestCert_DAC_FFF1_8000_0000_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
// Error cases with wrong certificate chaining:
{ sTestCert_PAA_FFF1_Cert, sTestCert_PAI_FFF2_NoPID_Cert, sTestCert_DAC_FFF1_8000_0000_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF1_8000_Cert, sTestCert_DAC_FFF1_8000_0000_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAA_FFF1_Cert, sTestCert_DAC_FFF1_8000_0000_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
// Error cases with PAA, PAI, DAC time validity in the past or future.
// In all cases either PAA or PAI was invalid with respect to DAC's notBefore time:
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_8004_FB_Cert, sTestCert_DAC_FFF2_8004_0030_Val1SecBefore_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_8005_Val1SecBefore_Cert,sTestCert_DAC_FFF2_8005_0032_Val1SecBefore_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
{ sTestCert_PAA_NoVID_Cert, sTestCert_PAI_FFF2_8005_ValInFuture_Cert, sTestCert_DAC_FFF2_8005_0033_Val1SecBefore_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
{ sTestCert_PAA_FFF2_ValInPast_Cert, sTestCert_PAI_FFF2_8006_ValInPast_Cert, sTestCert_DAC_FFF2_8006_0034_ValInFuture_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
{ sTestCert_PAA_FFF2_ValInFuture_Cert, sTestCert_PAI_FFF2_8006_ValInFuture_Cert, sTestCert_DAC_FFF2_8006_0035_Val1SecBefore_Cert, CHIP_ERROR_CERT_NOT_TRUSTED, CertificateChainValidationResult::kChainInvalid },
};
// clang-format on
for (auto & testCase : sValidationTestCases)
{
CertificateChainValidationResult chainValidationResult;
err = ValidateCertificateChain(testCase.root.data(), testCase.root.size(), testCase.ica.data(), testCase.ica.size(),
testCase.leaf.data(), testCase.leaf.size(), chainValidationResult);
NL_TEST_ASSERT(inSuite, err == testCase.expectedError);
NL_TEST_ASSERT(inSuite, chainValidationResult == testCase.expectedValResult);
}
}
static void TestX509_IssuingTimestampValidation(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
using namespace ASN1;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
struct ValidationTestCase
{
ByteSpan refCert;
ByteSpan evaluatedCert;
CHIP_ERROR expectedError;
};
// clang-format off
static ValidationTestCase sValidationTestCases[] = {
// Reference Certificate Evaluated Certificate Expected Error
// ================================================================================================================================
{ sTestCert_DAC_FFF1_8000_0000_Cert, sTestCert_PAA_FFF1_Cert, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF1_8000_0000_Cert, sTestCert_PAI_FFF1_8000_Cert, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8004_0020_ValInPast_Cert, sTestCert_PAA_NoVID_Cert, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8004_0021_ValInFuture_Cert, sTestCert_PAI_FFF2_8004_FB_Cert, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8005_0023_ValInFuture_Cert, sTestCert_PAI_FFF2_8005_ValInFuture_Cert, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8006_0025_ValInFuture_Cert, sTestCert_PAA_FFF2_ValInFuture_Cert, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8005_0032_Val1SecBefore_Cert, sTestCert_PAI_FFF2_8005_Val1SecBefore_Cert, CHIP_NO_ERROR },
// Error cases with invalid (empty Span) inputs:
{ sTestCert_DAC_FFF1_8000_0000_Cert, ByteSpan(), CHIP_ERROR_INVALID_ARGUMENT },
{ ByteSpan(), sTestCert_PAA_FFF1_Cert, CHIP_ERROR_INVALID_ARGUMENT },
// Error cases with not yet valid certificate:
{ sTestCert_DAC_FFF2_8004_0030_Val1SecBefore_Cert, sTestCert_PAI_FFF2_8004_FB_Cert, CHIP_ERROR_CERT_EXPIRED },
{ sTestCert_DAC_FFF2_8004_0030_Val1SecBefore_Cert, sTestCert_PAI_FFF2_8004_FB_Cert, CHIP_ERROR_CERT_EXPIRED },
{ sTestCert_DAC_FFF2_8005_0032_Val1SecBefore_Cert, sTestCert_PAA_NoVID_Cert, CHIP_ERROR_CERT_EXPIRED },
{ sTestCert_PAI_FFF2_8004_FB_Cert, sTestCert_DAC_FFF2_8004_0021_ValInFuture_Cert, CHIP_ERROR_CERT_EXPIRED },
{ sTestCert_DAC_FFF2_8006_0034_ValInFuture_Cert, sTestCert_PAI_FFF2_8006_ValInPast_Cert, CHIP_ERROR_CERT_EXPIRED },
};
// clang-format on
for (auto & testCase : sValidationTestCases)
{
err = IsCertificateValidAtIssuance(testCase.refCert, testCase.evaluatedCert);
NL_TEST_ASSERT(inSuite, err == testCase.expectedError);
}
#if !defined(CURRENT_TIME_NOT_IMPLEMENTED)
// test certificate validity (this one contains validity until year 9999 so it will not fail soon)
err = IsCertificateValidAtCurrentTime(sTestCert_DAC_FFF2_8001_0008_Cert);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
#endif
}
static void TestSKID_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
uint8_t skidBuf[kSubjectKeyIdentifierLength];
MutableByteSpan skidOut(skidBuf);
ByteSpan cert;
ByteSpan skidSpan;
for (size_t i = 0; i < gNumTestCerts; i++)
{
TestCert certType = gTestCerts[i];
err = GetTestCert(certType, TestCertLoadFlags::kDERForm, cert);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = GetTestCertSKID(certType, skidSpan);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = ExtractSKIDFromX509Cert(cert, skidOut);
if (!skidSpan.empty())
{
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, skidSpan.data_equal(skidOut));
}
else
{
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_NOT_FOUND);
}
}
}
static void TestAKID_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
uint8_t akidBuf[kAuthorityKeyIdentifierLength];
MutableByteSpan akidOut(akidBuf);
ByteSpan cert;
ByteSpan akidSpan;
for (size_t i = 0; i < gNumTestCerts; i++)
{
TestCert certType = gTestCerts[i];
err = GetTestCert(certType, TestCertLoadFlags::kDERForm, cert);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = GetTestCertAKID(certType, akidSpan);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
err = ExtractAKIDFromX509Cert(cert, akidOut);
if (!akidSpan.empty())
{
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, akidSpan.data_equal(akidOut));
}
else
{
NL_TEST_ASSERT(inSuite, err == CHIP_ERROR_NOT_FOUND);
}
}
}
static void TestCDPExtension_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
struct CDPTestCase
{
ByteSpan Cert;
CHIP_ERROR mExpectedError;
CharSpan mExpectedResult;
};
constexpr const char * exampleHttpURI = "http://example.com/crl.pem";
constexpr const char * exampleHttpsURI = "https://example.com/crl.pem";
CharSpan httpSpan = CharSpan::fromCharString(exampleHttpURI);
CharSpan httpsSpan = CharSpan::fromCharString(exampleHttpsURI);
// clang-format off
static CDPTestCase sCDPTestCases[] = {
// Cert Expected Error Expected Output
// ==============================================================================================================
{ ByteSpan(), CHIP_ERROR_INVALID_ARGUMENT, CharSpan() },
{ sTestCert_PAA_FFF1_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_PAI_FFF2_8001_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF2_8003_0019_FB_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Cert, CHIP_NO_ERROR, httpSpan },
{ sTestCert_DAC_FFF1_8000_0000_CDP_HTTPS_Cert, CHIP_NO_ERROR, httpsSpan },
{ sTestCert_DAC_FFF1_8000_0000_CDP_2URIs_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_2DPs_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_2CDPs_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Wrong_Prefix_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Long_Cert, CHIP_ERROR_BUFFER_TOO_SMALL, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_2CDPs_Issuer_PAA_FFF1_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_2CDPs_Issuer_PAI_FFF2_8004_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_CRL_Issuer_PAA_FFF1_2DPs_Cert, CHIP_ERROR_NOT_FOUND, CharSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_2CRLIssuers_PAA_FFF1_Cert, CHIP_NO_ERROR, httpsSpan },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Issuer_PAA_FFF1_Cert, CHIP_NO_ERROR, httpsSpan },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Issuer_PAA_NoVID_Cert, CHIP_NO_ERROR, httpsSpan },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Issuer_PAI_FFF2_8004_Cert, CHIP_NO_ERROR, httpsSpan },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Issuer_PAI_FFF2_8004_Long_Cert, CHIP_ERROR_BUFFER_TOO_SMALL, CharSpan() },
};
// clang-format on
for (auto & testCase : sCDPTestCases)
{
char cdpBuf[kMaxCRLDistributionPointURLLength] = { '\0' };
MutableCharSpan cdp(cdpBuf);
err = ExtractCRLDistributionPointURIFromX509Cert(testCase.Cert, cdp);
NL_TEST_ASSERT(inSuite, err == testCase.mExpectedError);
if (testCase.mExpectedError == CHIP_NO_ERROR)
{
NL_TEST_ASSERT(inSuite, cdp.size() == testCase.mExpectedResult.size());
NL_TEST_ASSERT(inSuite, cdp.data_equal(testCase.mExpectedResult));
}
}
}
static void TestCDPCRLIssuerExtension_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
struct CDPTestCase
{
ByteSpan Cert;
CHIP_ERROR mExpectedError;
ByteSpan mCRLIssuerCert;
};
// clang-format off
static CDPTestCase sCDPTestCases[] = {
// Cert Expected Error Expected CRL Issuer Cert
// =======================================================================================================================
{ ByteSpan(), CHIP_ERROR_INVALID_ARGUMENT, ByteSpan() },
{ sTestCert_PAA_FFF1_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_PAI_FFF2_8001_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF2_8003_0019_FB_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_HTTPS_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_2URIs_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_2DPs_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_2CDPs_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Wrong_Prefix_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Long_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_2CDPs_Issuer_PAA_FFF1_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_2CDPs_Issuer_PAI_FFF2_8004_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_CRL_Issuer_PAA_FFF1_2DPs_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_2CRLIssuers_PAA_FFF1_Cert, CHIP_ERROR_NOT_FOUND, ByteSpan() },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Issuer_PAA_FFF1_Cert, CHIP_NO_ERROR, sTestCert_PAA_FFF1_Cert },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Issuer_PAA_NoVID_Cert, CHIP_NO_ERROR, sTestCert_PAA_NoVID_Cert },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Issuer_PAI_FFF2_8004_Cert, CHIP_NO_ERROR, sTestCert_PAI_FFF2_8004_FB_Cert },
{ sTestCert_DAC_FFF1_8000_0000_CDP_Issuer_PAI_FFF2_8004_Long_Cert, CHIP_NO_ERROR, sTestCert_PAI_FFF2_8004_FB_Cert },
};
// clang-format on
for (auto & testCase : sCDPTestCases)
{
uint8_t crlIssuerBuf[kMaxCertificateDistinguishedNameLength] = { 0 };
MutableByteSpan crlIssuer(crlIssuerBuf);
err = ExtractCDPExtensionCRLIssuerFromX509Cert(testCase.Cert, crlIssuer);
NL_TEST_ASSERT(inSuite, err == testCase.mExpectedError);
if (testCase.mExpectedError == CHIP_NO_ERROR)
{
uint8_t crlIssuerSubjectBuf[kMaxCertificateDistinguishedNameLength] = { 0 };
MutableByteSpan crlIssuerSubject(crlIssuerSubjectBuf);
err = ExtractSubjectFromX509Cert(testCase.mCRLIssuerCert, crlIssuerSubject);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, crlIssuer.data_equal(crlIssuerSubject));
}
}
}
static void TestSerialNumber_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
struct SerialNumberTestCase
{
TestCert Cert;
ByteSpan mExpectedResult;
};
const uint8_t serialNumberRoot01[] = { 0x53, 0x4c, 0x45, 0x82, 0x73, 0x62, 0x35, 0x14 };
const uint8_t serialNumberICA01[] = { 0x69, 0xd8, 0x6a, 0x8d, 0x80, 0xfc, 0x8f, 0x5d };
const uint8_t serialNumberNode02_08[] = { 0x3e, 0x67, 0x94, 0x70, 0x7a, 0xec, 0xb8, 0x15 };
// clang-format off
static SerialNumberTestCase sSerialNumberTestCases[] = {
// Cert Expected Output
// ====================================================
{ TestCert::kRoot01, ByteSpan(serialNumberRoot01) },
{ TestCert::kICA01, ByteSpan(serialNumberICA01) },
{ TestCert::kNode02_08, ByteSpan(serialNumberNode02_08) },
};
// clang-format on
for (auto & testCase : sSerialNumberTestCases)
{
ByteSpan cert;
err = GetTestCert(testCase.Cert, TestCertLoadFlags::kDERForm, cert);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
uint8_t serialNumberBuf[kMaxCertificateSerialNumberLength] = { 0 };
MutableByteSpan serialNumber(serialNumberBuf);
err = ExtractSerialNumberFromX509Cert(cert, serialNumber);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, serialNumber.data_equal(testCase.mExpectedResult));
}
}
static void TestSubject_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
struct TestCase
{
TestCert Cert;
ChipDN mExpectedDN;
};
ChipDN subjectDN_Root01;
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Root01.AddAttribute_MatterRCACId(0xCACACACA00000001));
ChipDN subjectDN_ICA01;
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_ICA01.AddAttribute_MatterICACId(0xCACACACA00000003));
ChipDN subjectDN_Node02_02;
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_02.AddAttribute_MatterNodeId(0xDEDEDEDE00020002));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_02.AddAttribute_MatterFabricId(0xFAB000000000001D));
NL_TEST_ASSERT(inSuite,
CHIP_NO_ERROR ==
subjectDN_Node02_02.AddAttribute_CommonName("TEST CERT COMMON NAME Attr for Node02_02"_span, false));
ChipDN subjectDN_Node02_04;
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_04.AddAttribute_MatterCASEAuthTag(0xABCE1002));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_04.AddAttribute_CommonName("TestCert02_04"_span, false));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_04.AddAttribute_MatterFabricId(0xFAB000000000001D));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_04.AddAttribute_MatterCASEAuthTag(0xABCD0003));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_04.AddAttribute_MatterNodeId(0xDEDEDEDE00020004));
ChipDN subjectDN_Node02_08;
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_08.AddAttribute_MatterCASEAuthTag(0xABCF00A0));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_08.AddAttribute_MatterNodeId(0xDEDEDEDE00020008));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_08.AddAttribute_MatterCASEAuthTag(0xABCD0020));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_08.AddAttribute_MatterFabricId(0xFAB000000000001D));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == subjectDN_Node02_08.AddAttribute_MatterCASEAuthTag(0xABCE0100));
// clang-format off
static TestCase sTestCases[] = {
// Cert Expected Output
// ==============================================
{ TestCert::kRoot01, subjectDN_Root01 },
{ TestCert::kICA01, subjectDN_ICA01 },
{ TestCert::kNode02_02, subjectDN_Node02_02 },
{ TestCert::kNode02_04, subjectDN_Node02_04 },
{ TestCert::kNode02_08, subjectDN_Node02_08 },
};
// clang-format on
for (auto & testCase : sTestCases)
{
ByteSpan cert;
err = GetTestCert(testCase.Cert, TestCertLoadFlags::kDERForm, cert);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
uint8_t subjectBuf[kMaxCertificateDistinguishedNameLength] = { 0 };
MutableByteSpan subject(subjectBuf);
err = ExtractSubjectFromX509Cert(cert, subject);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
static uint8_t expectedSubjectBuf[kMaxCertificateDistinguishedNameLength] = { 0 };
ASN1::ASN1Writer writer;
writer.Init(expectedSubjectBuf);
err = testCase.mExpectedDN.EncodeToASN1(writer);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
size_t expectedSubjectLen = writer.GetLengthWritten();
NL_TEST_ASSERT(inSuite, expectedSubjectLen == subject.size());
NL_TEST_ASSERT(inSuite, memcmp(subject.data(), expectedSubjectBuf, expectedSubjectLen) == 0);
}
}
static void TestIssuer_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
CHIP_ERROR err = CHIP_NO_ERROR;
struct TestCase
{
TestCert Cert;
ChipDN mExpectedDN;
};
ChipDN issuerDN_Root01;
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == issuerDN_Root01.AddAttribute_MatterRCACId(0xCACACACA00000001));
ChipDN issuerDN_ICA02;
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == issuerDN_ICA02.AddAttribute_MatterRCACId(0xCACACACA00000002));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == issuerDN_ICA02.AddAttribute_MatterFabricId(0xFAB000000000001D));
ChipDN issuerDN_Node02_02;
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == issuerDN_Node02_02.AddAttribute_MatterICACId(0xCACACACA00000004));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == issuerDN_Node02_02.AddAttribute_MatterFabricId(0xFAB000000000001D));
// clang-format off
static TestCase sTestCases[] = {
// Cert Expected Output
// ==============================================
{ TestCert::kRoot01, issuerDN_Root01 },
{ TestCert::kICA02, issuerDN_ICA02 },
{ TestCert::kNode02_02, issuerDN_Node02_02 },
};
// clang-format on
for (auto & testCase : sTestCases)
{
ByteSpan cert;
err = GetTestCert(testCase.Cert, TestCertLoadFlags::kDERForm, cert);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
uint8_t issuerBuf[kMaxCertificateDistinguishedNameLength] = { 0 };
MutableByteSpan issuer(issuerBuf);
err = ExtractIssuerFromX509Cert(cert, issuer);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
static uint8_t expectedIssuerBuf[kMaxCertificateDistinguishedNameLength] = { 0 };
ASN1::ASN1Writer writer;
writer.Init(expectedIssuerBuf);
err = testCase.mExpectedDN.EncodeToASN1(writer);
NL_TEST_ASSERT(inSuite, err == CHIP_NO_ERROR);
size_t expectedIssuerLen = writer.GetLengthWritten();
NL_TEST_ASSERT(inSuite, expectedIssuerLen == issuer.size());
NL_TEST_ASSERT(inSuite, memcmp(issuer.data(), expectedIssuerBuf, expectedIssuerLen) == 0);
}
}
static void TestVIDPID_StringExtraction(nlTestSuite * inSuite, void * inContext)
{
HeapChecker heapChecker(inSuite);
// Matter VID/PID Attribute examples (from the spec):
const char * sTestMatterAttribute01 = "FFF1";
const char * sTestMatterAttribute02 = "0000";
const char * sTestMatterAttribute03 = "ABCD";
const char * sTestMatterAttribute04 = "D90F";
// Matter VID/PID Attribute error cases (from the spec):
const char * sTestMatterAttribute05 = "12eF";
const char * sTestMatterAttribute06 = "12345";
const char * sTestMatterAttribute07 = "AB5";
const char * sTestMatterAttribute08 = "abct";
const char * sTestMatterAttribute09 = "10FH";
const char * sTestMatterAttribute10 = "0x1234";
const char * sTestMatterAttribute11 = "0x45";
const char * sTestMatterAttribute12 = "Mvip:1234";
const char * sTestMatterAttribute13 = "HELLO";
const char * sTestMatterAttribute14 = "12";
// Common Name (CN) VID/PID encoding examples (from the spec):
const char * sTestCNAttribute01 = "Mvid:FFF1";
const char * sTestCNAttribute02 = "Mvid:002A";
const char * sTestCNAttribute03 = "Mpid:C20A";
const char * sTestCNAttribute04 = "Mpid:03A5";
const char * sTestCNAttribute05 = "ACME Matter Devel DAC 5CDA9899 Mvid:FFF1 Mpid:00B1";
const char * sTestCNAttribute06 = "Mpid:00B1,ACME Matter Devel DAC 5CDA9899,Mvid:FFF1";
const char * sTestCNAttribute07 = "ACME Matter Devel DAC 5CDA9899 Mvid:FFF1Mpid:00B1";
const char * sTestCNAttribute08 = "Mvid:FFF1ACME Matter Devel DAC 5CDAMpid:00B19899";
// Common Name (CN) VID/PID encoding error cases (from the spec):
const char * sTestCNAttribute09 = "ACME Matter Devel DAC 5CDA9899 Mvid:FF1 Mpid:00B1";
const char * sTestCNAttribute10 = "ACME Matter Devel DAC 5CDA9899 Mvid:fff1 Mpid:00B1";
const char * sTestCNAttribute11 = "ACME Matter Devel DAC 5CDA9899 Mvid:FFF1 Mpid:B1";
const char * sTestCNAttribute12 = "ACME Matter Devel DAC 5CDA9899 Mpid: Mvid:FFF1";
// Common Name (CN) VID/PID encoding more cases (more examples):
const char * sTestCNAttribute13 = "Mpid:987Mvid:FFF10x";
const char * sTestCNAttribute14 = "MpidMvid:FFF10 Matter Test Mpid:FE67"; // Valid, even if there is run-in.
const char * sTestCNAttribute15 = "Matter Devel Mpid:Mvid:Fff1";
// Even though "Mpid:" appears thrice, only the value with correct hex afterwards is taken
const char * sTestCNAttribute16 = "Mpid:Mvid:FFF1 Mpid:12cd Matter Test Mpid:FE67";
struct TestCase
{
DNAttrType attrType;
ByteSpan attr;
bool expectedVidPresent;
bool expectedPidPresent;
VendorId expectedVid;
uint16_t expectedPid;
CHIP_ERROR expectedResult;
};
// clang-format off
const TestCase kTestCases[] = {
// Matter VID/PID Attribute examples:
{ DNAttrType::kMatterVID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute01), strlen(sTestMatterAttribute01)), true, false, chip::VendorId::TestVendor1, 0x0000, CHIP_NO_ERROR },
{ DNAttrType::kMatterVID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute02), strlen(sTestMatterAttribute02)), true, false, chip::VendorId::Common, 0x0000, CHIP_NO_ERROR },
{ DNAttrType::kMatterPID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute03), strlen(sTestMatterAttribute03)), false, true, chip::VendorId::NotSpecified, 0xABCD, CHIP_NO_ERROR },
{ DNAttrType::kMatterPID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute04), strlen(sTestMatterAttribute04)), false, true, chip::VendorId::NotSpecified, 0xD90F, CHIP_NO_ERROR },
// Matter VID/PID Attribute error cases:
{ DNAttrType::kMatterVID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute05), strlen(sTestMatterAttribute05)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterPID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute06), strlen(sTestMatterAttribute06)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterVID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute07), strlen(sTestMatterAttribute07)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterPID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute08), strlen(sTestMatterAttribute08)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterVID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute09), strlen(sTestMatterAttribute09)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterPID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute10), strlen(sTestMatterAttribute10)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterVID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute11), strlen(sTestMatterAttribute11)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterPID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute12), strlen(sTestMatterAttribute12)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterVID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute13), strlen(sTestMatterAttribute13)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kMatterPID, ByteSpan(reinterpret_cast<const uint8_t *>(sTestMatterAttribute14), strlen(sTestMatterAttribute14)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
// Common Name (CN) VID/PID encoding examples:
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute01), strlen(sTestCNAttribute01)), true, false, chip::VendorId::TestVendor1, 0, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute02), strlen(sTestCNAttribute02)), true, false, static_cast<chip::VendorId>(0x002A), 0, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute03), strlen(sTestCNAttribute03)), false, true, chip::VendorId::NotSpecified, 0xC20A, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute04), strlen(sTestCNAttribute04)), false, true, chip::VendorId::NotSpecified, 0x03A5, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute05), strlen(sTestCNAttribute05)), true, true, chip::VendorId::TestVendor1, 0x00B1, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute06), strlen(sTestCNAttribute06)), true, true, chip::VendorId::TestVendor1, 0x00B1, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute07), strlen(sTestCNAttribute07)), true, true, chip::VendorId::TestVendor1, 0x00B1, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute08), strlen(sTestCNAttribute08)), true, true, chip::VendorId::TestVendor1, 0x00B1, CHIP_NO_ERROR },
// Common Name (CN) VID/PID encoding error cases:
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute09), strlen(sTestCNAttribute09)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute10), strlen(sTestCNAttribute10)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute11), strlen(sTestCNAttribute11)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute12), strlen(sTestCNAttribute12)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
// Common Name (CN) VID/PID encoding additional cases:
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute13), strlen(sTestCNAttribute13)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute14), strlen(sTestCNAttribute14)), true, true, chip::VendorId::TestVendor1, 0xFE67, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute15), strlen(sTestCNAttribute15)), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_WRONG_CERT_DN },
{ DNAttrType::kCommonName, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute16), strlen(sTestCNAttribute16)), true, true, chip::VendorId::TestVendor1, 0xFE67, CHIP_NO_ERROR },
// Other input combinations:
{ DNAttrType::kUnspecified, ByteSpan(reinterpret_cast<const uint8_t *>(sTestCNAttribute15), strlen(sTestCNAttribute15)), false, false, chip::VendorId::NotSpecified, 0, CHIP_NO_ERROR },
{ DNAttrType::kCommonName, ByteSpan(), false, false, chip::VendorId::NotSpecified, 0, CHIP_ERROR_INVALID_ARGUMENT },
};
// clang-format on
[[maybe_unused]] int caseIdx = 0;
for (const auto & testCase : kTestCases)
{
AttestationCertVidPid vidpid;
AttestationCertVidPid vidpidFromCN;
AttestationCertVidPid vidpidToCheck;
CHIP_ERROR result = ExtractVIDPIDFromAttributeString(testCase.attrType, testCase.attr, vidpid, vidpidFromCN);
ChipLogProgress(Crypto, "Checking VID/PID DN case %d. Expected: %" CHIP_ERROR_FORMAT, caseIdx,
testCase.expectedResult.Format());
if (result != testCase.expectedResult)
{
ChipLogError(Crypto, "Actual result: %" CHIP_ERROR_FORMAT, result.Format());
}
NL_TEST_ASSERT(inSuite, result == testCase.expectedResult);
// Only do assertions on output params in case of success since otherwise
// many of the output params are intermediate outputs.
if (result == CHIP_NO_ERROR)
{
if (testCase.attrType == DNAttrType::kMatterVID || testCase.attrType == DNAttrType::kMatterPID)
{
NL_TEST_ASSERT(inSuite, !vidpidFromCN.Initialized());
vidpidToCheck = vidpid;
}
else if (testCase.attrType == DNAttrType::kCommonName)
{
NL_TEST_ASSERT(inSuite, !vidpid.Initialized());
vidpidToCheck = vidpidFromCN;
}
NL_TEST_ASSERT(inSuite, vidpidToCheck.mVendorId.HasValue() == testCase.expectedVidPresent);
NL_TEST_ASSERT(inSuite, vidpidToCheck.mProductId.HasValue() == testCase.expectedPidPresent);
if (testCase.expectedVidPresent)
{
NL_TEST_ASSERT(inSuite, vidpidToCheck.mVendorId.Value() == testCase.expectedVid);
}
if (testCase.expectedPidPresent)
{
NL_TEST_ASSERT(inSuite, vidpidToCheck.mProductId.Value() == testCase.expectedPid);
}
}
++caseIdx;
}
}
static void TestVIDPID_x509Extraction(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
// Test scenario where Certificate does not contain a Vendor ID field
ByteSpan kOpCertNoVID;
NL_TEST_ASSERT(inSuite, GetTestCert(TestCert::kNode01_01, TestCertLoadFlags::kDERForm, kOpCertNoVID) == CHIP_NO_ERROR);
struct TestCase
{
ByteSpan cert;
bool expectedVidPresent;
bool expectedPidPresent;
VendorId expectedVid;
uint16_t expectedPid;
CHIP_ERROR expectedResult;
};
const TestCase kTestCases[] = {
// VID and PID preset cases:
{ sTestCert_PAI_FFF1_8000_Cert, true, true, chip::VendorId::TestVendor1, 0x8000, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF1_8000_0004_Cert, true, true, chip::VendorId::TestVendor1, 0x8000, CHIP_NO_ERROR },
{ sTestCert_PAI_FFF2_8001_Cert, true, true, chip::VendorId::TestVendor2, 0x8001, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8001_0009_Cert, true, true, chip::VendorId::TestVendor2, 0x8001, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8002_0016_Cert, true, true, chip::VendorId::TestVendor2, 0x8002, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8003_0019_FB_Cert, true, true, chip::VendorId::TestVendor2, 0x8003, CHIP_NO_ERROR },
{ sTestCert_DAC_FFF2_8004_001E_FB_Cert, true, true, chip::VendorId::TestVendor2, 0x8004, CHIP_NO_ERROR },
{ sTestCert_PAI_FFF2_8004_FB_Cert, true, true, chip::VendorId::TestVendor2, 0x8004, CHIP_NO_ERROR },
// VID present and PID not present cases:
{ sTestCert_PAA_FFF1_Cert, true, false, chip::VendorId::TestVendor1, 0x0000, CHIP_NO_ERROR },
{ sTestCert_PAI_FFF2_NoPID_Cert, true, false, chip::VendorId::TestVendor2, 0x0000, CHIP_NO_ERROR },
{ sTestCert_PAI_FFF2_NoPID_FB_Cert, true, false, chip::VendorId::TestVendor2, 0x0000, CHIP_NO_ERROR },
// VID and PID not present cases:
{ sTestCert_PAA_NoVID_Cert, false, false, chip::VendorId::NotSpecified, 0x0000, CHIP_NO_ERROR },
{ kOpCertNoVID, false, false, chip::VendorId::NotSpecified, 0x0000, CHIP_NO_ERROR },
};
for (const auto & testCase : kTestCases)
{
AttestationCertVidPid vidpid;
CHIP_ERROR result = ExtractVIDPIDFromX509Cert(testCase.cert, vidpid);
NL_TEST_ASSERT(inSuite, result == testCase.expectedResult);
NL_TEST_ASSERT(inSuite, vidpid.mVendorId.HasValue() == testCase.expectedVidPresent);
NL_TEST_ASSERT(inSuite, vidpid.mProductId.HasValue() == testCase.expectedPidPresent);
// If present, make sure the VID matches expectation.
if (testCase.expectedVidPresent)
{
NL_TEST_ASSERT(inSuite, vidpid.mVendorId.Value() == testCase.expectedVid);
}
// If present, make sure the VID matches expectation.
if (testCase.expectedPidPresent)
{
NL_TEST_ASSERT(inSuite, vidpid.mProductId.Value() == testCase.expectedPid);
}
}
}
static void TestX509_ReplaceCertIfResignedCertFound(nlTestSuite * inSuite, void * inContext)
{
using namespace TestCerts;
HeapChecker heapChecker(inSuite);
struct TestCase
{
ByteSpan referenceCert;
ByteSpan * candidateCertsList;
size_t candidateCertsCount;
ByteSpan expectedOutCert;
};
// clang-format off
ByteSpan TestCandidateCertsList1[] = { sTestCert_DAC_FFF1_8000_0004_Cert,
sTestCert_PAI_FFF2_8004_FB_Cert,
sTestCert_PAA_FFF1_Cert };
ByteSpan TestCandidateCertsList2[] = { sTestCert_DAC_FFF1_8000_0004_Cert,
sTestCert_PAI_FFF2_NoPID_Resigned_Cert };
ByteSpan TestCandidateCertsList3[] = { sTestCert_DAC_FFF1_8000_0004_Cert,
sTestCert_PAI_FFF2_8001_Resigned_Cert };
ByteSpan TestCandidateCertsList4[] = { sTestCert_PAI_FFF2_8001_Resigned_Cert,
sTestCert_PAI_FFF1_8000_Cert };
ByteSpan TestCandidateCertsList5[] = { sTestCert_PAI_FFF2_NoPID_Resigned_Cert,
sTestCert_PAI_FFF2_8001_ResignedSKIDDiff_Cert };
ByteSpan TestCandidateCertsList6[] = { sTestCert_PAI_FFF2_8001_ResignedSubjectDiff_Cert,
sTestCert_DAC_FFF1_8000_0004_Cert };
ByteSpan TestCandidateCertsList7[] = { sTestCert_PAA_NoVID_ToResignPAIs_Cert,
sTestCert_PAI_FFF2_8001_ResignedSKIDDiff_Cert,
sTestCert_PAI_FFF2_8001_ResignedSubjectDiff_Cert,
sTestCert_PAI_FFF2_8001_Resigned_Cert,
sTestCert_PAI_FFF2_NoPID_Resigned_Cert };
ByteSpan TestCandidateCertsList8[] = { sTestCert_PAA_NoVID_ToResignPAIs_Cert,
sTestCert_PAI_FFF2_8001_Resigned_Cert,
ByteSpan(),
sTestCert_PAI_FFF2_8001_ResignedSKIDDiff_Cert,
sTestCert_PAI_FFF2_8001_ResignedSubjectDiff_Cert,
sTestCert_PAI_FFF2_NoPID_Resigned_Cert };
const TestCase kTestCases[] = {
{ sTestCert_PAI_FFF2_8001_Cert, nullptr, 5, sTestCert_PAI_FFF2_8001_Cert },
{ sTestCert_PAI_FFF2_8001_Cert, TestCandidateCertsList3, 0, sTestCert_PAI_FFF2_8001_Cert },
{ sTestCert_PAI_FFF1_8000_Cert, TestCandidateCertsList1, ArraySize(TestCandidateCertsList1), sTestCert_PAI_FFF1_8000_Cert },
{ sTestCert_PAI_FFF2_8001_Cert, TestCandidateCertsList2, ArraySize(TestCandidateCertsList2), sTestCert_PAI_FFF2_8001_Cert },
{ sTestCert_PAI_FFF2_8001_Cert, TestCandidateCertsList3, ArraySize(TestCandidateCertsList3), sTestCert_PAI_FFF2_8001_Resigned_Cert },
{ sTestCert_PAI_FFF2_8001_Cert, TestCandidateCertsList4, ArraySize(TestCandidateCertsList4), sTestCert_PAI_FFF2_8001_Resigned_Cert },
{ sTestCert_PAI_FFF2_8001_Cert, TestCandidateCertsList5, ArraySize(TestCandidateCertsList5), sTestCert_PAI_FFF2_8001_Cert },
{ sTestCert_PAI_FFF2_8001_Cert, TestCandidateCertsList6, ArraySize(TestCandidateCertsList6), sTestCert_PAI_FFF2_8001_Cert },
{ sTestCert_PAI_FFF2_8001_Cert, TestCandidateCertsList7, ArraySize(TestCandidateCertsList7), sTestCert_PAI_FFF2_8001_Resigned_Cert },
{ sTestCert_PAI_FFF2_NoPID_Cert, TestCandidateCertsList7, ArraySize(TestCandidateCertsList7), sTestCert_PAI_FFF2_NoPID_Resigned_Cert },
};
// clang-format on
for (const auto & testCase : kTestCases)
{
ByteSpan outCert;
CHIP_ERROR result = ReplaceCertIfResignedCertFound(testCase.referenceCert, testCase.candidateCertsList,
testCase.candidateCertsCount, outCert);
NL_TEST_ASSERT(inSuite, result == CHIP_NO_ERROR);
NL_TEST_ASSERT(inSuite, outCert.data_equal(testCase.expectedOutCert));
}
// Error case: invalid input argument for referenceCertificate
{
ByteSpan outCert;
CHIP_ERROR result =
ReplaceCertIfResignedCertFound(ByteSpan(), TestCandidateCertsList7, ArraySize(TestCandidateCertsList7), outCert);
NL_TEST_ASSERT(inSuite, result == CHIP_ERROR_INVALID_ARGUMENT);
}
// Error case: invalid input argument for one of the certificates in the candidateCertificates list
{
ByteSpan outCert;
CHIP_ERROR result =
ReplaceCertIfResignedCertFound(ByteSpan(), TestCandidateCertsList8, ArraySize(TestCandidateCertsList8), outCert);
NL_TEST_ASSERT(inSuite, result == CHIP_ERROR_INVALID_ARGUMENT);
}
}
static const uint8_t kCompressedFabricId[] = { 0x29, 0x06, 0xC9, 0x08, 0xD1, 0x15, 0xD3, 0x62 };
const uint8_t kEpochKeyBuffer1[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf };
const uint8_t kEpochKeyBuffer2[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf };
const uint8_t kGroupOperationalKey1[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0x1f, 0x19, 0xed, 0x3c, 0xef, 0x8a,
0x21, 0x1b, 0xaf, 0x30, 0x6f, 0xae,
0xee, 0xe7, 0xaa, 0xc6 };
const uint8_t kGroupOperationalKey2[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0xaa, 0x97, 0x9a, 0x48, 0xbd, 0x8c,
0xdf, 0x29, 0x3a, 0x07, 0x09, 0xb9,
0xc1, 0xeb, 0x19, 0x30 };
static const uint8_t kCompressedFabricId2[] = { 0x87, 0xe1, 0xb0, 0x04, 0xe2, 0x35, 0xa1, 0x30 };
const uint8_t kEpochKeyBuffer3[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0x23, 0x5b, 0xf7, 0xe6, 0x28, 0x23, 0xd3, 0x58,
0xdc, 0xa4, 0xba, 0x50, 0xb1, 0x53, 0x5f, 0x4b };
const uint8_t kGroupOperationalKey3[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0xa6, 0xf5, 0x30, 0x6b, 0xaf, 0x6d,
0x05, 0x0a, 0xf2, 0x3b, 0xa4, 0xbd,
0x6b, 0x9d, 0xd9, 0x60 };
const uint16_t kGroupSessionId1 = 0x6c80;
const uint16_t kGroupSessionId2 = 0x0c48;
static const uint8_t kGroupPrivacyKey1[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0xb8, 0x27, 0x9f, 0x89, 0x62, 0x1e,
0xd3, 0x27, 0xa9, 0xc3, 0x9f, 0x6a,
0x27, 0x24, 0x73, 0x58 };
static const uint8_t kGroupPrivacyKey2[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0xf7, 0x25, 0x70, 0xc3, 0xc0, 0x89,
0xa0, 0xfe, 0x28, 0x75, 0x83, 0x57,
0xaf, 0xff, 0xb8, 0xd2 };
static const uint8_t kGroupPrivacyKey3[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0x01, 0xf8, 0xd1, 0x92, 0x71, 0x26,
0xf1, 0x94, 0x08, 0x25, 0x72, 0xd4,
0x9b, 0x1f, 0xdc, 0x73 };
static void TestGroup_OperationalKeyDerivation(nlTestSuite * inSuite, void * inContext)
{
uint8_t key_buffer[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0 };
ByteSpan epoch_key(kEpochKeyBuffer1, sizeof(kEpochKeyBuffer1));
MutableByteSpan operational_key(key_buffer, sizeof(key_buffer));
ByteSpan compressed_fabric_id(kCompressedFabricId);
// Invalid Epoch Key
NL_TEST_ASSERT(inSuite,
CHIP_ERROR_INVALID_ARGUMENT == DeriveGroupOperationalKey(ByteSpan(), compressed_fabric_id, operational_key));
// Epoch Key 1
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == DeriveGroupOperationalKey(epoch_key, compressed_fabric_id, operational_key));
NL_TEST_ASSERT(inSuite, 0 == memcmp(operational_key.data(), kGroupOperationalKey1, sizeof(kGroupOperationalKey1)));
// Epoch Key 2
epoch_key = ByteSpan(kEpochKeyBuffer2, sizeof(kEpochKeyBuffer2));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == DeriveGroupOperationalKey(epoch_key, compressed_fabric_id, operational_key));
NL_TEST_ASSERT(inSuite, 0 == memcmp(operational_key.data(), kGroupOperationalKey2, sizeof(kGroupOperationalKey2)));
// Epoch Key 3 (example from spec)
epoch_key = ByteSpan(kEpochKeyBuffer3, sizeof(kEpochKeyBuffer3));
compressed_fabric_id = ByteSpan(kCompressedFabricId2);
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == DeriveGroupOperationalKey(epoch_key, compressed_fabric_id, operational_key));
NL_TEST_ASSERT(inSuite, 0 == memcmp(operational_key.data(), kGroupOperationalKey3, sizeof(kGroupOperationalKey3)));
}
static void TestGroup_SessionIdDerivation(nlTestSuite * inSuite, void * inContext)
{
ByteSpan operational_key1(kGroupOperationalKey1, sizeof(kGroupOperationalKey1));
ByteSpan operational_key2(kGroupOperationalKey2, sizeof(kGroupOperationalKey2));
uint16_t session_id = 0;
// Bad Key
NL_TEST_ASSERT(inSuite, CHIP_ERROR_INVALID_ARGUMENT == DeriveGroupSessionId(ByteSpan(), session_id));
// Session ID 1
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == DeriveGroupSessionId(operational_key1, session_id));
NL_TEST_ASSERT(inSuite, kGroupSessionId1 == session_id);
// Session ID 2
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == DeriveGroupSessionId(operational_key2, session_id));
NL_TEST_ASSERT(inSuite, kGroupSessionId2 == session_id);
}
static void TestGroup_PrivacyKeyDerivation(nlTestSuite * inSuite, void * inContext)
{
uint8_t key_buffer[Crypto::CHIP_CRYPTO_SYMMETRIC_KEY_LENGTH_BYTES] = { 0 };
ByteSpan encryption_key;
MutableByteSpan privacy_key(key_buffer, sizeof(key_buffer));
// Invalid Epoch Key
NL_TEST_ASSERT(inSuite, CHIP_ERROR_INVALID_ARGUMENT == DeriveGroupPrivacyKey(ByteSpan(), privacy_key));
// Epoch Key 1
encryption_key = ByteSpan(kGroupOperationalKey1, sizeof(kGroupOperationalKey1));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == DeriveGroupPrivacyKey(encryption_key, privacy_key));
NL_TEST_ASSERT(inSuite, 0 == memcmp(privacy_key.data(), kGroupPrivacyKey1, sizeof(kGroupPrivacyKey1)));
// Epoch Key 2
encryption_key = ByteSpan(kGroupOperationalKey2, sizeof(kGroupOperationalKey2));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == DeriveGroupPrivacyKey(encryption_key, privacy_key));
NL_TEST_ASSERT(inSuite, 0 == memcmp(privacy_key.data(), kGroupPrivacyKey2, sizeof(kGroupPrivacyKey2)));
// Epoch Key 3 (example from spec)
encryption_key = ByteSpan(kGroupOperationalKey3, sizeof(kGroupOperationalKey3));
NL_TEST_ASSERT(inSuite, CHIP_NO_ERROR == DeriveGroupPrivacyKey(encryption_key, privacy_key));
NL_TEST_ASSERT(inSuite, 0 == memcmp(privacy_key.data(), kGroupPrivacyKey3, sizeof(kGroupPrivacyKey3)));
}
/**
* Test Suite. It lists all the test functions.
*/
static const nlTest sTests[] = {
NL_TEST_DEF("Test encrypting AES-CCM-128 test vectors", TestAES_CCM_128EncryptTestVectors),
NL_TEST_DEF("Test decrypting AES-CCM-128 test vectors", TestAES_CCM_128DecryptTestVectors),
NL_TEST_DEF("Test encrypting AES-CCM-128 using invalid nonce", TestAES_CCM_128EncryptInvalidNonceLen),
NL_TEST_DEF("Test encrypting AES-CCM-128 using invalid tag", TestAES_CCM_128EncryptInvalidTagLen),
NL_TEST_DEF("Test decrypting AES-CCM-128 invalid nonce", TestAES_CCM_128DecryptInvalidNonceLen),
NL_TEST_DEF("Test encrypt/decrypt AES-CTR-128 test vectors", TestAES_CTR_128CryptTestVectors),
NL_TEST_DEF("Test ASN.1 signature conversion routines", TestAsn1Conversions),
NL_TEST_DEF("Test reading a length from ASN.1 DER stream success cases", TestReadDerLengthValidCases),
NL_TEST_DEF("Test reading a length from ASN.1 DER stream error cases", TestReadDerLengthInvalidCases),
NL_TEST_DEF("Test Integer to ASN.1 DER conversion", TestRawIntegerToDerValidCases),
NL_TEST_DEF("Test Integer to ASN.1 DER conversion error cases", TestRawIntegerToDerInvalidCases),
NL_TEST_DEF("Test ECDSA signing and validation message using SHA256", TestECDSA_Signing_SHA256_Msg),
NL_TEST_DEF("Test ECDSA signing and validation SHA256 Hash", TestECDSA_Signing_SHA256_Hash),
NL_TEST_DEF("Test ECDSA signature validation fail - Different msg", TestECDSA_ValidationFailsDifferentMessage),
NL_TEST_DEF("Test ECDSA signature validation fail - Different msg signature", TestECDSA_ValidationFailIncorrectMsgSignature),
NL_TEST_DEF("Test ECDSA signature validation fail - Different hash signature", TestECDSA_ValidationFailIncorrectHashSignature),
NL_TEST_DEF("Test ECDSA sign msg invalid parameters", TestECDSA_SigningMsgInvalidParams),
NL_TEST_DEF("Test ECDSA msg signature validation invalid parameters", TestECDSA_ValidationMsgInvalidParam),
NL_TEST_DEF("Test ECDSA hash signature validation invalid parameters", TestECDSA_ValidationHashInvalidParam),
NL_TEST_DEF("Test Hash SHA 256", TestHash_SHA256),
NL_TEST_DEF("Test Hash SHA 256 Stream", TestHash_SHA256_Stream),
NL_TEST_DEF("Test HKDF SHA 256", TestHKDF_SHA256),
NL_TEST_DEF("Test HMAC SHA 256 - Raw Key", TestHMAC_SHA256_RawKey),
NL_TEST_DEF("Test HMAC SHA 256 - Key Handle", TestHMAC_SHA256_KeyHandle),
NL_TEST_DEF("Test DRBG invalid inputs", TestDRBG_InvalidInputs),
NL_TEST_DEF("Test DRBG output", TestDRBG_Output),
NL_TEST_DEF("Test ECDH derive shared secret", TestECDH_EstablishSecret),
NL_TEST_DEF("Test adding entropy sources", TestAddEntropySources),
NL_TEST_DEF("Test PBKDF2 SHA256", TestPBKDF2_SHA256_TestVectors),
NL_TEST_DEF("Test P256 Keygen", TestP256_Keygen),
NL_TEST_DEF("Test CSR Verification + PK extraction", TestCSR_Verify),
NL_TEST_DEF("Test CSR Generation via P256Keypair method", TestCSR_GenByKeypair),
NL_TEST_DEF("Test Direct CSR Generation", TestCSR_GenDirect),
NL_TEST_DEF("Test Keypair Serialize", TestKeypair_Serialize),
NL_TEST_DEF("Test Spake2p_spake2p FEMul", TestSPAKE2P_spake2p_FEMul),
NL_TEST_DEF("Test Spake2p_spake2p FELoad/FEWrite", TestSPAKE2P_spake2p_FELoadWrite),
NL_TEST_DEF("Test Spake2p_spake2p Mac", TestSPAKE2P_spake2p_Mac),
NL_TEST_DEF("Test Spake2p_spake2p PointMul", TestSPAKE2P_spake2p_PointMul),
NL_TEST_DEF("Test Spake2p_spake2p PointMulAdd", TestSPAKE2P_spake2p_PointMulAdd),
NL_TEST_DEF("Test Spake2p_spake2p PointLoad/PointWrite", TestSPAKE2P_spake2p_PointLoadWrite),
NL_TEST_DEF("Test Spake2p_spake2p PointIsValid", TestSPAKE2P_spake2p_PointIsValid),
NL_TEST_DEF("Test Spake2+ against RFC test vectors", TestSPAKE2P_RFC),
NL_TEST_DEF("Test Spake2+ object reuse", TestSPAKE2P_Reuse),
NL_TEST_DEF("Test compressed fabric identifier", TestCompressedFabricIdentifier),
NL_TEST_DEF("Test Pubkey Extraction from x509 Certificate", TestPubkey_x509Extraction),
NL_TEST_DEF("Test x509 Attestation Certificate Format Validation", TestX509_VerifyAttestationCertificateFormat),
NL_TEST_DEF("Test x509 Certificate Chain Validation", TestX509_CertChainValidation),
NL_TEST_DEF("Test x509 Certificate Timestamp Validation", TestX509_IssuingTimestampValidation),
NL_TEST_DEF("Test Subject Key Id Extraction from x509 Certificate", TestSKID_x509Extraction),
NL_TEST_DEF("Test Authority Key Id Extraction from x509 Certificate", TestAKID_x509Extraction),
NL_TEST_DEF("Test CRL Distribution Point Extension Extraction from x509 Certificate", TestCDPExtension_x509Extraction),
NL_TEST_DEF("Test CDP Extension CRL Issuer Extraction from x509 Certificate", TestCDPCRLIssuerExtension_x509Extraction),
NL_TEST_DEF("Test Serial Number Extraction from x509 Certificate", TestSerialNumber_x509Extraction),
NL_TEST_DEF("Test Subject Extraction from x509 Certificate", TestSubject_x509Extraction),
NL_TEST_DEF("Test Issuer Extraction from x509 Certificate", TestIssuer_x509Extraction),
NL_TEST_DEF("Test Vendor ID and Product ID Extraction from Attribute String", TestVIDPID_StringExtraction),
NL_TEST_DEF("Test Vendor ID and Product ID Extraction from x509 Attestation Certificate", TestVIDPID_x509Extraction),
NL_TEST_DEF("Test Replace Resigned Certificate Version if Found", TestX509_ReplaceCertIfResignedCertFound),
NL_TEST_DEF("Test Group Operation Key Derivation", TestGroup_OperationalKeyDerivation),
NL_TEST_DEF("Test Group Session ID Derivation", TestGroup_SessionIdDerivation),
NL_TEST_DEF("Test Group Privacy Key Derivation", TestGroup_PrivacyKeyDerivation),
NL_TEST_DEF("Test sensitive data buffer", TestSensitiveDataBuffer),
NL_TEST_DEF("Test sensitive data fixed buffer", TestSensitiveDataFixedBuffer),
NL_TEST_SENTINEL()
};
/**
* Set up the test suite.
*/
int TestCHIPCryptoPAL_Setup(void * inContext)
{
CHIP_ERROR error = chip::Platform::MemoryInit();
if (error != CHIP_NO_ERROR)
return FAILURE;
#if CHIP_CRYPTO_PSA
psa_crypto_init();
#endif
return SUCCESS;
}
/**
* Tear down the test suite.
*/
int TestCHIPCryptoPAL_Teardown(void * inContext)
{
chip::Platform::MemoryShutdown();
return SUCCESS;
}
int TestChipCryptoPal()
{
// clang-format off
nlTestSuite theSuite =
{
"CHIP Crypto PAL tests",
&sTests[0],
TestCHIPCryptoPAL_Setup,
TestCHIPCryptoPAL_Teardown
};
// clang-format on
// Run test suite against one context.
nlTestRunner(&theSuite, nullptr);
add_entropy_source(test_entropy_source, nullptr, 16);
return (nlTestRunnerStats(&theSuite));
}
CHIP_REGISTER_TEST_SUITE(TestChipCryptoPal)