blob: c1a436168f6246972ce6c84fc983da6f51f52e32 [file] [log] [blame]
/*
*
* Copyright (c) 2022 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 <crypto/CHIPCryptoPAL.h>
#include <lib/support/Base64.h>
#include <lib/support/BytesToHex.h>
#include <platform/ASR/ASRConfig.h>
#include <platform/ASR/ASRFactoryDataProvider.h>
#include <platform/CHIPDeviceConfig.h>
#include <platform/CHIPDeviceError.h>
namespace chip {
namespace DeviceLayer {
using namespace chip::Credentials;
using namespace chip::DeviceLayer::Internal;
namespace {
static constexpr uint32_t kDACPrivateKeySize = 32;
static constexpr uint32_t kDACPublicKeySize = 65;
CHIP_ERROR LoadKeypairFromRaw(ByteSpan privateKey, ByteSpan publicKey, Crypto::P256Keypair & keypair)
{
Crypto::P256SerializedKeypair serializedKeypair;
ReturnErrorOnFailure(serializedKeypair.SetLength(privateKey.size() + publicKey.size()));
memcpy(serializedKeypair.Bytes(), publicKey.data(), publicKey.size());
memcpy(serializedKeypair.Bytes() + publicKey.size(), privateKey.data(), privateKey.size());
return keypair.Deserialize(serializedKeypair);
}
} // namespace
CHIP_ERROR ASRFactoryDataProvider::Init()
{
CHIP_ERROR err = CHIP_NO_ERROR;
#if CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
factory_error_t ret = asr_factory_check();
if (ret != FACTORY_NO_ERROR)
{
err = CHIP_ERROR_INTERNAL;
ChipLogError(DeviceLayer, "ASR factory data check failed. err = %d", ret);
}
#endif
return err;
}
CHIP_ERROR ASRFactoryDataProvider::GetSetupDiscriminator(uint16_t & setupDiscriminator)
{
uint32_t setupDiscriminator32;
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR) && CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR
setupDiscriminator32 = CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR;
#else
return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR) && CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR
#else
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_DISCRIMINATOR_PARTITION, setupDiscriminator32));
#endif
VerifyOrReturnLogError(setupDiscriminator32 <= kMaxDiscriminatorValue, CHIP_ERROR_INVALID_ARGUMENT);
setupDiscriminator = static_cast<uint16_t>(setupDiscriminator32);
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetSpake2pIterationCount(uint32_t & iterationCount)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT) && CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT
iterationCount = CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT;
return CHIP_NO_ERROR;
#else
return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT) && CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT
#else
return ASRConfig::ReadFactoryConfigValue(ASR_ITERATION_COUNT_PARTITION, iterationCount);
#endif
}
CHIP_ERROR ASRFactoryDataProvider::GetSpake2pSalt(MutableByteSpan & saltBuf)
{
static constexpr size_t kSpake2pSalt_MaxBase64Len = BASE64_ENCODED_LEN(chip::Crypto::kSpake2p_Max_PBKDF_Salt_Length) + 1;
CHIP_ERROR err = CHIP_NO_ERROR;
char saltB64[kSpake2pSalt_MaxBase64Len] = { 0 };
size_t saltB64Len = 0;
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_SALT)
saltB64Len = strlen(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_SALT);
ReturnErrorCodeIf(saltB64Len > sizeof(saltB64), CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(saltB64, CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_SALT, saltB64Len);
#else
return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_SALT)
#else
err = ASRConfig::ReadFactoryConfigValue(ASR_SALT_PARTITION, reinterpret_cast<uint8_t *>(saltB64), kSpake2pSalt_MaxBase64Len,
saltB64Len);
#endif
ReturnErrorOnFailure(err);
size_t saltLen = chip::Base64Decode32(saltB64, saltB64Len, reinterpret_cast<uint8_t *>(saltB64));
ReturnErrorCodeIf(saltLen > saltBuf.size(), CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(saltBuf.data(), saltB64, saltLen);
saltBuf.reduce_size(saltLen);
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetSpake2pVerifier(MutableByteSpan & verifierBuf, size_t & verifierLen)
{
static constexpr size_t kSpake2pSerializedVerifier_MaxBase64Len =
BASE64_ENCODED_LEN(chip::Crypto::kSpake2p_VerifierSerialized_Length) + 1;
CHIP_ERROR err = CHIP_NO_ERROR;
char verifierB64[kSpake2pSerializedVerifier_MaxBase64Len] = { 0 };
size_t verifierB64Len = 0;
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_VERIFIER)
verifierB64Len = strlen(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_VERIFIER);
ReturnErrorCodeIf(verifierB64Len > sizeof(verifierB64), CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(verifierB64, CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_VERIFIER, verifierB64Len);
#else
return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_VERIFIER)
#else
err = ASRConfig::ReadFactoryConfigValue(ASR_VERIFIER_PARTITION, reinterpret_cast<uint8_t *>(verifierB64),
kSpake2pSerializedVerifier_MaxBase64Len, verifierB64Len);
#endif
ReturnErrorOnFailure(err);
verifierLen = chip::Base64Decode32(verifierB64, verifierB64Len, reinterpret_cast<uint8_t *>(verifierB64));
ReturnErrorCodeIf(verifierLen > verifierBuf.size(), CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(verifierBuf.data(), verifierB64, verifierLen);
verifierBuf.reduce_size(verifierLen);
return CHIP_NO_ERROR;
}
#define USE_EXAMPLES_DAC // VID:0xFFF1 PID:0x8001
#if CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#undef USE_EXAMPLES_DAC
#endif
CHIP_ERROR ASRFactoryDataProvider::GetCertificationDeclaration(MutableByteSpan & outBuffer)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#ifdef USE_EXAMPLES_DAC
//-> format_version = 1
//-> vendor_id = 0xFFF1
//-> product_id_array = [ 0x8000, 0x8001, 0x8002, 0x8003, 0x8004, 0x8005, 0x8006, 0x8007, 0x8008, 0x8009, 0x800A, 0x800B,
// 0x800C, 0x800D, 0x800E, 0x800F, 0x8010, 0x8011, 0x8012, 0x8013, 0x8014, 0x8015, 0x8016, 0x8017, 0x8018, 0x8019, 0x801A,
// 0x801B, 0x801C, 0x801D, 0x801E, 0x801F, 0x8020, 0x8021, 0x8022, 0x8023, 0x8024, 0x8025, 0x8026, 0x8027, 0x8028, 0x8029,
// 0x802A, 0x802B, 0x802C, 0x802D, 0x802E, 0x802F, 0x8030, 0x8031, 0x8032, 0x8033, 0x8034, 0x8035, 0x8036, 0x8037, 0x8038,
// 0x8039, 0x803A, 0x803B, 0x803C, 0x803D, 0x803E, 0x803F, 0x8040, 0x8041, 0x8042, 0x8043, 0x8044, 0x8045, 0x8046, 0x8047,
// 0x8048, 0x8049, 0x804A, 0x804B, 0x804C, 0x804D, 0x804E, 0x804F, 0x8050, 0x8051, 0x8052, 0x8053, 0x8054, 0x8055, 0x8056,
// 0x8057, 0x8058, 0x8059, 0x805A, 0x805B, 0x805C, 0x805D, 0x805E, 0x805F, 0x8060, 0x8061, 0x8062, 0x8063 ]
//-> device_type_id = 0x0016
//-> certificate_id = "ZIG20142ZB330003-24"
//-> security_level = 0
//-> security_information = 0
//-> version_number = 0x2694
//-> certification_type = 0
//-> dac_origin_vendor_id is not present
//-> dac_origin_product_id is not present
const uint8_t kCdForAllExamples[] = {
0x30, 0x82, 0x02, 0x19, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x02, 0x0a, 0x30,
0x82, 0x02, 0x06, 0x02, 0x01, 0x03, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02,
0x01, 0x30, 0x82, 0x01, 0x71, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0xa0, 0x82, 0x01, 0x62,
0x04, 0x82, 0x01, 0x5e, 0x15, 0x24, 0x00, 0x01, 0x25, 0x01, 0xf1, 0xff, 0x36, 0x02, 0x05, 0x00, 0x80, 0x05, 0x01, 0x80,
0x05, 0x02, 0x80, 0x05, 0x03, 0x80, 0x05, 0x04, 0x80, 0x05, 0x05, 0x80, 0x05, 0x06, 0x80, 0x05, 0x07, 0x80, 0x05, 0x08,
0x80, 0x05, 0x09, 0x80, 0x05, 0x0a, 0x80, 0x05, 0x0b, 0x80, 0x05, 0x0c, 0x80, 0x05, 0x0d, 0x80, 0x05, 0x0e, 0x80, 0x05,
0x0f, 0x80, 0x05, 0x10, 0x80, 0x05, 0x11, 0x80, 0x05, 0x12, 0x80, 0x05, 0x13, 0x80, 0x05, 0x14, 0x80, 0x05, 0x15, 0x80,
0x05, 0x16, 0x80, 0x05, 0x17, 0x80, 0x05, 0x18, 0x80, 0x05, 0x19, 0x80, 0x05, 0x1a, 0x80, 0x05, 0x1b, 0x80, 0x05, 0x1c,
0x80, 0x05, 0x1d, 0x80, 0x05, 0x1e, 0x80, 0x05, 0x1f, 0x80, 0x05, 0x20, 0x80, 0x05, 0x21, 0x80, 0x05, 0x22, 0x80, 0x05,
0x23, 0x80, 0x05, 0x24, 0x80, 0x05, 0x25, 0x80, 0x05, 0x26, 0x80, 0x05, 0x27, 0x80, 0x05, 0x28, 0x80, 0x05, 0x29, 0x80,
0x05, 0x2a, 0x80, 0x05, 0x2b, 0x80, 0x05, 0x2c, 0x80, 0x05, 0x2d, 0x80, 0x05, 0x2e, 0x80, 0x05, 0x2f, 0x80, 0x05, 0x30,
0x80, 0x05, 0x31, 0x80, 0x05, 0x32, 0x80, 0x05, 0x33, 0x80, 0x05, 0x34, 0x80, 0x05, 0x35, 0x80, 0x05, 0x36, 0x80, 0x05,
0x37, 0x80, 0x05, 0x38, 0x80, 0x05, 0x39, 0x80, 0x05, 0x3a, 0x80, 0x05, 0x3b, 0x80, 0x05, 0x3c, 0x80, 0x05, 0x3d, 0x80,
0x05, 0x3e, 0x80, 0x05, 0x3f, 0x80, 0x05, 0x40, 0x80, 0x05, 0x41, 0x80, 0x05, 0x42, 0x80, 0x05, 0x43, 0x80, 0x05, 0x44,
0x80, 0x05, 0x45, 0x80, 0x05, 0x46, 0x80, 0x05, 0x47, 0x80, 0x05, 0x48, 0x80, 0x05, 0x49, 0x80, 0x05, 0x4a, 0x80, 0x05,
0x4b, 0x80, 0x05, 0x4c, 0x80, 0x05, 0x4d, 0x80, 0x05, 0x4e, 0x80, 0x05, 0x4f, 0x80, 0x05, 0x50, 0x80, 0x05, 0x51, 0x80,
0x05, 0x52, 0x80, 0x05, 0x53, 0x80, 0x05, 0x54, 0x80, 0x05, 0x55, 0x80, 0x05, 0x56, 0x80, 0x05, 0x57, 0x80, 0x05, 0x58,
0x80, 0x05, 0x59, 0x80, 0x05, 0x5a, 0x80, 0x05, 0x5b, 0x80, 0x05, 0x5c, 0x80, 0x05, 0x5d, 0x80, 0x05, 0x5e, 0x80, 0x05,
0x5f, 0x80, 0x05, 0x60, 0x80, 0x05, 0x61, 0x80, 0x05, 0x62, 0x80, 0x05, 0x63, 0x80, 0x18, 0x24, 0x03, 0x16, 0x2c, 0x04,
0x13, 0x5a, 0x49, 0x47, 0x32, 0x30, 0x31, 0x34, 0x32, 0x5a, 0x42, 0x33, 0x33, 0x30, 0x30, 0x30, 0x33, 0x2d, 0x32, 0x34,
0x24, 0x05, 0x00, 0x24, 0x06, 0x00, 0x25, 0x07, 0x94, 0x26, 0x24, 0x08, 0x00, 0x18, 0x31, 0x7d, 0x30, 0x7b, 0x02, 0x01,
0x03, 0x80, 0x14, 0x62, 0xfa, 0x82, 0x33, 0x59, 0xac, 0xfa, 0xa9, 0x96, 0x3e, 0x1c, 0xfa, 0x14, 0x0a, 0xdd, 0xf5, 0x04,
0xf3, 0x71, 0x60, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30, 0x0a, 0x06, 0x08,
0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x04, 0x47, 0x30, 0x45, 0x02, 0x20, 0x24, 0xe5, 0xd1, 0xf4, 0x7a, 0x7d,
0x7b, 0x0d, 0x20, 0x6a, 0x26, 0xef, 0x69, 0x9b, 0x7c, 0x97, 0x57, 0xb7, 0x2d, 0x46, 0x90, 0x89, 0xde, 0x31, 0x92, 0xe6,
0x78, 0xc7, 0x45, 0xe7, 0xf6, 0x0c, 0x02, 0x21, 0x00, 0xf8, 0xaa, 0x2f, 0xa7, 0x11, 0xfc, 0xb7, 0x9b, 0x97, 0xe3, 0x97,
0xce, 0xda, 0x66, 0x7b, 0xae, 0x46, 0x4e, 0x2b, 0xd3, 0xff, 0xdf, 0xc3, 0xcc, 0xed, 0x7a, 0xa8, 0xca, 0x5f, 0x4c, 0x1a,
0x7c,
};
return CopySpanToMutableSpan(ByteSpan{ kCdForAllExamples }, outBuffer);
#else
return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
#endif
#else
size_t certSize;
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_CERT_DCLRN_PARTITION, outBuffer.data(), outBuffer.size(), certSize));
outBuffer.reduce_size(certSize);
return CHIP_NO_ERROR;
#endif
}
CHIP_ERROR ASRFactoryDataProvider::GetFirmwareInformation(MutableByteSpan & out_firmware_info_buffer)
{
// We do not provide any FirmwareInformation.
out_firmware_info_buffer.reduce_size(0);
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetDeviceAttestationCert(MutableByteSpan & outBuffer)
{
size_t certSize;
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#ifdef USE_EXAMPLES_DAC
const uint8_t kDacCert[] = {
0x30, 0x82, 0x01, 0xe7, 0x30, 0x82, 0x01, 0x8e, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x08, 0x69, 0xcd, 0xf1, 0x0d, 0xe9,
0xe5, 0x4e, 0xd1, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x30, 0x3d, 0x31, 0x25, 0x30,
0x23, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x1c, 0x4d, 0x61, 0x74, 0x74, 0x65, 0x72, 0x20, 0x44, 0x65, 0x76, 0x20, 0x50,
0x41, 0x49, 0x20, 0x30, 0x78, 0x46, 0x46, 0x46, 0x31, 0x20, 0x6e, 0x6f, 0x20, 0x50, 0x49, 0x44, 0x31, 0x14, 0x30, 0x12,
0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x01, 0x0c, 0x04, 0x46, 0x46, 0x46, 0x31, 0x30, 0x20,
0x17, 0x0d, 0x32, 0x32, 0x30, 0x32, 0x30, 0x35, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5a, 0x18, 0x0f, 0x39, 0x39, 0x39,
0x39, 0x31, 0x32, 0x33, 0x31, 0x32, 0x33, 0x35, 0x39, 0x35, 0x39, 0x5a, 0x30, 0x53, 0x31, 0x25, 0x30, 0x23, 0x06, 0x03,
0x55, 0x04, 0x03, 0x0c, 0x1c, 0x4d, 0x61, 0x74, 0x74, 0x65, 0x72, 0x20, 0x44, 0x65, 0x76, 0x20, 0x44, 0x41, 0x43, 0x20,
0x30, 0x78, 0x46, 0x46, 0x46, 0x31, 0x2f, 0x30, 0x78, 0x38, 0x30, 0x30, 0x31, 0x31, 0x14, 0x30, 0x12, 0x06, 0x0a, 0x2b,
0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x01, 0x0c, 0x04, 0x46, 0x46, 0x46, 0x31, 0x31, 0x14, 0x30, 0x12, 0x06,
0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x02, 0x0c, 0x04, 0x38, 0x30, 0x30, 0x31, 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, 0x46, 0x3a, 0xc6, 0x93, 0x42, 0x91, 0x0a, 0x0e, 0x55, 0x88, 0xfc, 0x6f, 0xf5, 0x6b, 0xb6, 0x3e,
0x62, 0xec, 0xce, 0xcb, 0x14, 0x8f, 0x7d, 0x4e, 0xb0, 0x3e, 0xe5, 0x52, 0x60, 0x14, 0x15, 0x76, 0x7d, 0x16, 0xa5, 0xc6,
0x63, 0xf7, 0x93, 0xe4, 0x91, 0x23, 0x26, 0x0b, 0x82, 0x97, 0xa7, 0xcd, 0x7e, 0x7c, 0xfc, 0x7b, 0x31, 0x6b, 0x39, 0xd9,
0x8e, 0x90, 0xd2, 0x93, 0x77, 0x73, 0x8e, 0x82, 0xa3, 0x60, 0x30, 0x5e, 0x30, 0x0c, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01,
0x01, 0xff, 0x04, 0x02, 0x30, 0x00, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02,
0x07, 0x80, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x88, 0xdd, 0xe7, 0xb3, 0x00, 0x38, 0x29,
0x32, 0xcf, 0xf7, 0x34, 0xc0, 0x46, 0x24, 0x81, 0x0f, 0x44, 0x16, 0x8a, 0x6f, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23,
0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x63, 0x54, 0x0e, 0x47, 0xf6, 0x4b, 0x1c, 0x38, 0xd1, 0x38, 0x84, 0xa4, 0x62, 0xd1,
0x6c, 0x19, 0x5d, 0x8f, 0xfb, 0x3c, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x47,
0x00, 0x30, 0x44, 0x02, 0x20, 0x01, 0x27, 0xa2, 0x7b, 0x4b, 0x44, 0x61, 0x0e, 0xe2, 0xfc, 0xdc, 0x4d, 0x2b, 0x78, 0x85,
0x56, 0x36, 0x60, 0xbc, 0x0f, 0x76, 0xf1, 0x72, 0x19, 0xed, 0x6a, 0x08, 0xdf, 0xb2, 0xb3, 0xc1, 0xcd, 0x02, 0x20, 0x6b,
0x59, 0xe0, 0xaf, 0x45, 0xf3, 0xeb, 0x2a, 0x85, 0xb9, 0x19, 0xd3, 0x57, 0x31, 0x52, 0x8c, 0x60, 0x28, 0xc4, 0x15, 0x23,
0x95, 0x45, 0xe1, 0x08, 0xe4, 0xe5, 0x4e, 0x70, 0x97, 0x13, 0x53,
};
return CopySpanToMutableSpan(ByteSpan{ kDacCert }, outBuffer);
#else
return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
#endif
#else
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_DAC_CERT_PARTITION, outBuffer.data(), outBuffer.size(), certSize));
#endif
outBuffer.reduce_size(certSize);
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetProductAttestationIntermediateCert(MutableByteSpan & outBuffer)
{
size_t certSize;
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#ifdef USE_EXAMPLES_DAC
const uint8_t kPaiCert[] = {
0x30, 0x82, 0x01, 0xcb, 0x30, 0x82, 0x01, 0x71, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x08, 0x56, 0xad, 0x82, 0x22, 0xad,
0x94, 0x5b, 0x64, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x30, 0x30, 0x31, 0x18, 0x30,
0x16, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x0f, 0x4d, 0x61, 0x74, 0x74, 0x65, 0x72, 0x20, 0x54, 0x65, 0x73, 0x74, 0x20,
0x50, 0x41, 0x41, 0x31, 0x14, 0x30, 0x12, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x01, 0x0c,
0x04, 0x46, 0x46, 0x46, 0x31, 0x30, 0x20, 0x17, 0x0d, 0x32, 0x32, 0x30, 0x32, 0x30, 0x35, 0x30, 0x30, 0x30, 0x30, 0x30,
0x30, 0x5a, 0x18, 0x0f, 0x39, 0x39, 0x39, 0x39, 0x31, 0x32, 0x33, 0x31, 0x32, 0x33, 0x35, 0x39, 0x35, 0x39, 0x5a, 0x30,
0x3d, 0x31, 0x25, 0x30, 0x23, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x1c, 0x4d, 0x61, 0x74, 0x74, 0x65, 0x72, 0x20, 0x44,
0x65, 0x76, 0x20, 0x50, 0x41, 0x49, 0x20, 0x30, 0x78, 0x46, 0x46, 0x46, 0x31, 0x20, 0x6e, 0x6f, 0x20, 0x50, 0x49, 0x44,
0x31, 0x14, 0x30, 0x12, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x01, 0x0c, 0x04, 0x46, 0x46,
0x46, 0x31, 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, 0x41, 0x9a, 0x93, 0x15, 0xc2, 0x17, 0x3e, 0x0c, 0x8c, 0x87, 0x6d,
0x03, 0xcc, 0xfc, 0x94, 0x48, 0x52, 0x64, 0x7f, 0x7f, 0xec, 0x5e, 0x50, 0x82, 0xf4, 0x05, 0x99, 0x28, 0xec, 0xa8, 0x94,
0xc5, 0x94, 0x15, 0x13, 0x09, 0xac, 0x63, 0x1e, 0x4c, 0xb0, 0x33, 0x92, 0xaf, 0x68, 0x4b, 0x0b, 0xaf, 0xb7, 0xe6, 0x5b,
0x3b, 0x81, 0x62, 0xc2, 0xf5, 0x2b, 0xf9, 0x31, 0xb8, 0xe7, 0x7a, 0xaa, 0x82, 0xa3, 0x66, 0x30, 0x64, 0x30, 0x12, 0x06,
0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x08, 0x30, 0x06, 0x01, 0x01, 0xff, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x06,
0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x01, 0x06, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e,
0x04, 0x16, 0x04, 0x14, 0x63, 0x54, 0x0e, 0x47, 0xf6, 0x4b, 0x1c, 0x38, 0xd1, 0x38, 0x84, 0xa4, 0x62, 0xd1, 0x6c, 0x19,
0x5d, 0x8f, 0xfb, 0x3c, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x6a, 0xfd, 0x22,
0x77, 0x1f, 0x51, 0x1f, 0xec, 0xbf, 0x16, 0x41, 0x97, 0x67, 0x10, 0xdc, 0xdc, 0x31, 0xa1, 0x71, 0x7e, 0x30, 0x0a, 0x06,
0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x21, 0x00, 0xb2, 0xef, 0x27,
0xf4, 0x9a, 0xe9, 0xb5, 0x0f, 0xb9, 0x1e, 0xea, 0xc9, 0x4c, 0x4d, 0x0b, 0xdb, 0xb8, 0xd7, 0x92, 0x9c, 0x6c, 0xb8, 0x8f,
0xac, 0xe5, 0x29, 0x36, 0x8d, 0x12, 0x05, 0x4c, 0x0c, 0x02, 0x20, 0x65, 0x5d, 0xc9, 0x2b, 0x86, 0xbd, 0x90, 0x98, 0x82,
0xa6, 0xc6, 0x21, 0x77, 0xb8, 0x25, 0xd7, 0xd0, 0x5e, 0xdb, 0xe7, 0xc2, 0x2f, 0x9f, 0xea, 0x71, 0x22, 0x0e, 0x7e, 0xa7,
0x03, 0xf8, 0x91,
};
return CopySpanToMutableSpan(ByteSpan{ kPaiCert }, outBuffer);
#else
return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
#endif
#else
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_PAI_CERT_PARTITION, outBuffer.data(), outBuffer.size(), certSize));
#endif
outBuffer.reduce_size(certSize);
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::SignWithDeviceAttestationKey(const ByteSpan & messageToSign, MutableByteSpan & outSignBuffer)
{
Crypto::P256ECDSASignature signature;
Crypto::P256Keypair keypair;
VerifyOrReturnError(!outSignBuffer.empty(), CHIP_ERROR_INVALID_ARGUMENT);
VerifyOrReturnError(!messageToSign.empty(), CHIP_ERROR_INVALID_ARGUMENT);
VerifyOrReturnError(outSignBuffer.size() >= signature.Capacity(), CHIP_ERROR_BUFFER_TOO_SMALL);
#if !CONFIG_ENABLE_ASR_FACTORY_DATA_PROVIDER
#ifdef USE_EXAMPLES_DAC
const uint8_t kDacPublicKey[] = {
0x04, 0x46, 0x3a, 0xc6, 0x93, 0x42, 0x91, 0x0a, 0x0e, 0x55, 0x88, 0xfc, 0x6f, 0xf5, 0x6b, 0xb6, 0x3e,
0x62, 0xec, 0xce, 0xcb, 0x14, 0x8f, 0x7d, 0x4e, 0xb0, 0x3e, 0xe5, 0x52, 0x60, 0x14, 0x15, 0x76, 0x7d,
0x16, 0xa5, 0xc6, 0x63, 0xf7, 0x93, 0xe4, 0x91, 0x23, 0x26, 0x0b, 0x82, 0x97, 0xa7, 0xcd, 0x7e, 0x7c,
0xfc, 0x7b, 0x31, 0x6b, 0x39, 0xd9, 0x8e, 0x90, 0xd2, 0x93, 0x77, 0x73, 0x8e, 0x82,
};
const uint8_t kDacPrivateKey[] = {
0xaa, 0xb6, 0x00, 0xae, 0x8a, 0xe8, 0xaa, 0xb7, 0xd7, 0x36, 0x27, 0xc2, 0x17, 0xb7, 0xc2, 0x04,
0x70, 0x9c, 0xa6, 0x94, 0x6a, 0xf5, 0xf2, 0xf7, 0x53, 0x08, 0x33, 0xa5, 0x2b, 0x44, 0xfb, 0xff,
};
ReturnErrorOnFailure(LoadKeypairFromRaw(ByteSpan{ kDacPrivateKey }, ByteSpan{ kDacPublicKey }, keypair));
#else
return CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND;
#endif
#else
uint8_t privKeyBuf[kDACPrivateKeySize];
uint8_t pubKeyBuf[kDACPublicKeySize];
size_t privKeyLen = sizeof(privKeyBuf);
size_t pubKeyLen = sizeof(pubKeyBuf);
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_DAC_KEY_PARTITION, privKeyBuf, privKeyLen, privKeyLen));
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_DAC_PUB_KEY_PARTITION, pubKeyBuf, pubKeyLen, pubKeyLen));
ReturnErrorOnFailure(LoadKeypairFromRaw(ByteSpan(privKeyBuf, privKeyLen), ByteSpan(pubKeyBuf, pubKeyLen), keypair));
#endif
ReturnErrorOnFailure(keypair.ECDSA_sign_msg(messageToSign.data(), messageToSign.size(), signature));
return CopySpanToMutableSpan(ByteSpan{ signature.ConstBytes(), signature.Length() }, outSignBuffer);
}
CHIP_ERROR ASRFactoryDataProvider::GetVendorName(char * buf, size_t bufSize)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
ReturnErrorCodeIf(bufSize < sizeof(CHIP_DEVICE_CONFIG_DEVICE_VENDOR_NAME), CHIP_ERROR_BUFFER_TOO_SMALL);
strcpy(buf, CHIP_DEVICE_CONFIG_DEVICE_VENDOR_NAME);
#else
size_t buffer_len = ConfigurationManager::kMaxVendorNameLength + 1;
uint8_t buffer[ConfigurationManager::kMaxVendorNameLength + 1] = { 0 };
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_VENDOR_NAME_PARTITION, buffer, buffer_len, buffer_len));
ReturnErrorCodeIf(bufSize < buffer_len, CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(buf, buffer, buffer_len);
buf[buffer_len] = 0;
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetVendorId(uint16_t & vendorId)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
vendorId = static_cast<uint16_t>(CHIP_DEVICE_CONFIG_DEVICE_VENDOR_ID);
#else
uint32_t vendorId32;
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_VENDOR_ID_PARTITION, vendorId32));
vendorId = static_cast<uint16_t>(vendorId32);
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetProductName(char * buf, size_t bufSize)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
ReturnErrorCodeIf(bufSize < sizeof(CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_NAME), CHIP_ERROR_BUFFER_TOO_SMALL);
strcpy(buf, CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_NAME);
#else
size_t buffer_len = ConfigurationManager::kMaxProductNameLength + 1;
uint8_t buffer[ConfigurationManager::kMaxProductNameLength + 1] = { 0 };
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_PRODUCT_NAME_PARTITION, buffer, buffer_len, buffer_len));
ReturnErrorCodeIf(bufSize < buffer_len, CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(buf, buffer, buffer_len);
buf[buffer_len] = 0;
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetProductId(uint16_t & productId)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
productId = static_cast<uint16_t>(CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_ID);
#else
uint32_t productId32;
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_PRODUCT_ID_PARTITION, productId32));
productId = static_cast<uint16_t>(productId32);
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetPartNumber(char * buf, size_t bufSize)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#else
size_t buffer_len = ConfigurationManager::kMaxPartNumberLength + 1;
uint8_t buffer[ConfigurationManager::kMaxPartNumberLength + 1] = { 0 };
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_PART_NUMBER_PARTITION, buffer, buffer_len, buffer_len));
ReturnErrorCodeIf(bufSize < buffer_len, CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(buf, buffer, buffer_len);
buf[buffer_len] = 0;
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetProductURL(char * buf, size_t bufSize)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#else
size_t buffer_len = ConfigurationManager::kMaxProductURLLength + 1;
uint8_t buffer[ConfigurationManager::kMaxProductURLLength + 1] = { 0 };
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_PRODUCT_URL_PARTITION, buffer, buffer_len, buffer_len));
ReturnErrorCodeIf(bufSize < buffer_len, CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(buf, buffer, buffer_len);
buf[buffer_len] = 0;
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetProductLabel(char * buf, size_t bufSize)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#else
size_t buffer_len = ConfigurationManager::kMaxProductLabelLength + 1;
uint8_t buffer[ConfigurationManager::kMaxProductLabelLength + 1] = { 0 };
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_PRODUCT_LABEL_PARTITION, buffer, buffer_len, buffer_len));
ReturnErrorCodeIf(bufSize < buffer_len, CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(buf, buffer, buffer_len);
buf[buffer_len] = 0;
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetSerialNumber(char * buf, size_t bufSize)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
ReturnErrorCodeIf(bufSize < sizeof(CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER), CHIP_ERROR_BUFFER_TOO_SMALL);
strcpy(buf, CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER);
#else
size_t buffer_len = ConfigurationManager::kMaxSerialNumberLength + 1;
uint8_t buffer[ConfigurationManager::kMaxSerialNumberLength + 1] = { 0 };
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_SERIAL_NUMBER_PARTITION, buffer, buffer_len, buffer_len));
ReturnErrorCodeIf(bufSize < buffer_len, CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(buf, buffer, buffer_len);
buf[buffer_len] = 0;
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetManufacturingDate(uint16_t & year, uint8_t & month, uint8_t & day)
{
CHIP_ERROR err = CHIP_NO_ERROR;
enum
{
kDateStringLength = 10 // YYYY-MM-DD
};
char dateStr[kDateStringLength + 1];
char * parseEnd;
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
memcpy(dateStr, CHIP_DEVICE_CONFIG_TEST_MANUFACTURY_DATE, kDateStringLength + 1);
#else
size_t dateLen;
err = ASRConfig::ReadFactoryConfigValue(ASR_MANUFACTURY_DATE_PARTITION, (uint8_t *) dateStr, sizeof(dateStr), dateLen);
SuccessOrExit(err);
VerifyOrExit(dateLen == kDateStringLength, err = CHIP_ERROR_INVALID_ARGUMENT);
#endif
// Cast does not lose information, because we then check that we only parsed
// 4 digits, so our number can't be bigger than 9999.
year = static_cast<uint16_t>(strtoul(dateStr, &parseEnd, 10));
VerifyOrExit(parseEnd == dateStr + 4, err = CHIP_ERROR_INVALID_ARGUMENT);
// Cast does not lose information, because we then check that we only parsed
// 2 digits, so our number can't be bigger than 99.
month = static_cast<uint8_t>(strtoul(dateStr + 5, &parseEnd, 10));
VerifyOrExit(parseEnd == dateStr + 7, err = CHIP_ERROR_INVALID_ARGUMENT);
// Cast does not lose information, because we then check that we only parsed
// 2 digits, so our number can't be bigger than 99.
day = static_cast<uint8_t>(strtoul(dateStr + 8, &parseEnd, 10));
VerifyOrExit(parseEnd == dateStr + 10, err = CHIP_ERROR_INVALID_ARGUMENT);
exit:
if (err != CHIP_NO_ERROR && err != CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND)
{
ChipLogError(DeviceLayer, "Invalid manufacturing date: %s", dateStr);
}
return err;
}
CHIP_ERROR ASRFactoryDataProvider::GetHardwareVersion(uint16_t & hardwareVersion)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
hardwareVersion = static_cast<uint16_t>(CHIP_DEVICE_CONFIG_DEFAULT_DEVICE_HARDWARE_VERSION);
#else
uint32_t hardwareVersion32;
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_HARDWARE_VERSION_PARTITION, hardwareVersion32));
hardwareVersion = static_cast<uint16_t>(hardwareVersion32);
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetHardwareVersionString(char * buf, size_t bufSize)
{
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
ReturnErrorCodeIf(bufSize < sizeof(CHIP_DEVICE_CONFIG_DEFAULT_DEVICE_HARDWARE_VERSION_STRING), CHIP_ERROR_BUFFER_TOO_SMALL);
strcpy(buf, CHIP_DEVICE_CONFIG_DEFAULT_DEVICE_HARDWARE_VERSION_STRING);
#else
size_t buffer_len = ConfigurationManager::kMaxHardwareVersionStringLength + 1;
uint8_t buffer[ConfigurationManager::kMaxHardwareVersionStringLength + 1] = { 0 };
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_HARDWARE_VERSION_STR_PARTITION, buffer, buffer_len, buffer_len));
ReturnErrorCodeIf(bufSize < buffer_len, CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(buf, buffer, buffer_len);
buf[buffer_len] = 0;
#endif
return CHIP_NO_ERROR;
}
CHIP_ERROR ASRFactoryDataProvider::GetRotatingDeviceIdUniqueId(MutableByteSpan & uniqueIdSpan)
{
ChipError err = CHIP_ERROR_WRONG_KEY_TYPE;
#if CHIP_ENABLE_ROTATING_DEVICE_ID
static_assert(ConfigurationManager::kRotatingDeviceIDUniqueIDLength >= ConfigurationManager::kMinRotatingDeviceIDUniqueIDLength,
"Length of unique ID for rotating device ID is smaller than minimum.");
#if !CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
#ifdef CHIP_DEVICE_CONFIG_ROTATING_DEVICE_ID_UNIQUE_ID
constexpr uint8_t uniqueId[] = CHIP_DEVICE_CONFIG_ROTATING_DEVICE_ID_UNIQUE_ID;
ReturnErrorCodeIf(sizeof(uniqueId) > uniqueIdSpan.size(), CHIP_ERROR_BUFFER_TOO_SMALL);
ReturnErrorCodeIf(sizeof(uniqueId) != ConfigurationManager::kRotatingDeviceIDUniqueIDLength, CHIP_ERROR_BUFFER_TOO_SMALL);
memcpy(uniqueIdSpan.data(), uniqueId, sizeof(uniqueId));
uniqueIdSpan.reduce_size(sizeof(uniqueId));
return CHIP_NO_ERROR;
#endif // CHIP_DEVICE_CONFIG_ROTATING_DEVICE_ID_UNIQUE_ID
#else // CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
#define ROTATING_UNIQUE_ID_STRING_LEN ConfigurationManager::kRotatingDeviceIDUniqueIDLength * 2
uint8_t buffer[ROTATING_UNIQUE_ID_STRING_LEN] = { 0 };
size_t buffer_len = ROTATING_UNIQUE_ID_STRING_LEN;
ReturnErrorCodeIf(ConfigurationManager::kRotatingDeviceIDUniqueIDLength > uniqueIdSpan.size(), CHIP_ERROR_BUFFER_TOO_SMALL);
ReturnErrorOnFailure(ASRConfig::ReadFactoryConfigValue(ASR_ROTATING_UNIQUE_ID_PARTITION, buffer, buffer_len, buffer_len));
size_t bytesLen =
chip::Encoding::HexToBytes(Uint8::to_char(buffer), ROTATING_UNIQUE_ID_STRING_LEN, uniqueIdSpan.data(), uniqueIdSpan.size());
ReturnErrorCodeIf(bytesLen != ConfigurationManager::kRotatingDeviceIDUniqueIDLength, CHIP_ERROR_INVALID_STRING_LENGTH);
uniqueIdSpan.reduce_size(bytesLen);
return CHIP_NO_ERROR;
#endif // CONFIG_ENABLE_ASR_FACTORY_DEVICE_INFO_PROVIDER
#endif // CHIP_ENABLE_ROTATING_DEVICE_ID
return err;
}
} // namespace DeviceLayer
} // namespace chip