src/platform/stm32/FactoryDataProvider.cpp

/*
 *
 *    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 "FactoryDataProvider.h"

#include <crypto/CHIPCryptoPAL.h>
#include <lib/support/Base64.h>
#include <lib/support/CodeUtils.h>
#include <lib/support/logging/CHIPLogging.h>
#include <platform/CHIPDeviceConfig.h>

namespace chip {
namespace {

} // namespace

namespace DeviceLayer {

CHIP_ERROR FactoryDataProvider::Init()
{
    return CHIP_NO_ERROR;
}

FactoryDataProvider & FactoryDataProvider::GetDefaultInstance()
{
    static FactoryDataProvider sInstance;
    return sInstance;
}

CHIP_ERROR FactoryDataProvider::SetSetupPasscode(uint32_t setupPasscode)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::SetSetupDiscriminator(uint16_t setupDiscriminator)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

// TODO: This should be moved to a method of P256Keypair
CHIP_ERROR LoadKeypairFromRaw(ByteSpan private_key, ByteSpan public_key, Crypto::P256Keypair & keypair)
{
    Crypto::P256SerializedKeypair serialized_keypair;
    ReturnErrorOnFailure(serialized_keypair.SetLength(private_key.size() + public_key.size()));
    memcpy(serialized_keypair.Bytes(), public_key.data(), public_key.size());
    memcpy(serialized_keypair.Bytes() + public_key.size(), private_key.data(), private_key.size());
    return keypair.Deserialize(serialized_keypair);
}

CHIP_ERROR FactoryDataProvider::SignWithDeviceAttestationKey(const ByteSpan & messageToSign, MutableByteSpan & outSignBuffer)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    Crypto::P256ECDSASignature signature;
    Crypto::P256Keypair keypair;

    const uint8_t kDevelopmentDAC_PublicKey_FFF1_8004[65] = {
        0x04, 0x50, 0x41, 0x38, 0xef, 0x31, 0xc9, 0xdd, 0x16, 0x0e, 0xb4, 0x6c, 0x6c, 0x17, 0x11, 0x4f, 0x9d,
        0x72, 0x88, 0x40, 0x80, 0x1f, 0x73, 0xbb, 0x9b, 0x5a, 0x2c, 0x51, 0x91, 0xc9, 0xb2, 0x06, 0x63, 0x01,
        0x9d, 0x94, 0x76, 0xd1, 0x93, 0x1b, 0x93, 0xff, 0x47, 0xf4, 0x32, 0x56, 0x37, 0x90, 0x35, 0xd2, 0x29,
        0x62, 0x0b, 0x7e, 0x21, 0x0e, 0x59, 0x2f, 0x26, 0x43, 0x7d, 0x2d, 0x57, 0x62, 0x05,
    };
    const uint8_t kDevelopmentDAC_PrivateKey_FFF1_8004[32] = {
        0x82, 0x0a, 0x24, 0x2a, 0x03, 0x0e, 0xbc, 0xe1, 0x1f, 0x38, 0x73, 0x5a, 0xcf, 0x1a, 0x6f, 0x37,
        0xc3, 0xad, 0xa6, 0xe4, 0x32, 0xd2, 0x47, 0x0a, 0x8a, 0x41, 0x37, 0x43, 0xf8, 0x95, 0x63, 0xf3,
    };
    ByteSpan kDacPrivateKey = ByteSpan(kDevelopmentDAC_PrivateKey_FFF1_8004);
    ByteSpan kDacPublicKey  = ByteSpan(kDevelopmentDAC_PublicKey_FFF1_8004);

    VerifyOrReturnError(IsSpanUsable(outSignBuffer), CHIP_ERROR_INVALID_ARGUMENT);
    VerifyOrReturnError(IsSpanUsable(messageToSign), CHIP_ERROR_INVALID_ARGUMENT);
    VerifyOrReturnError(outSignBuffer.size() >= signature.Capacity(), CHIP_ERROR_BUFFER_TOO_SMALL);

    // In a non-exemplary implementation, the public key is not needed here. It is used here merely because
    // Crypto::P256Keypair is only (currently) constructable from raw keys if both private/public keys are present.
    ReturnErrorOnFailure(LoadKeypairFromRaw(kDacPrivateKey, kDacPublicKey, keypair));
    ReturnErrorOnFailure(keypair.ECDSA_sign_msg(messageToSign.data(), messageToSign.size(), signature));

    return CopySpanToMutableSpan(ByteSpan{ signature.ConstBytes(), signature.Length() }, outSignBuffer);
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetSetupDiscriminator(uint16_t & setupDiscriminator)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    setupDiscriminator = CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR;
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetSpake2pIterationCount(uint32_t & iterationCount)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    constexpr uint32_t kDefaultTestVerifierIterationCount = 1000;
    iterationCount                                        = kDefaultTestVerifierIterationCount;
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetSetupPasscode(uint32_t & setupPasscode)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    setupPasscode = CHIP_DEVICE_CONFIG_USE_TEST_SETUP_PIN_CODE;
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetVendorId(uint16_t & vendorId)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    vendorId = CHIP_DEVICE_CONFIG_DEVICE_VENDOR_ID;
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetProductId(uint16_t & productId)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    productId = CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_ID;
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetHardwareVersion(uint16_t & hardwareVersion)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    hardwareVersion = CHIP_DEVICE_CONFIG_DEVICE_HARDWARE_VERSION;
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetManufacturingDate(uint16_t & year, uint8_t & month, uint8_t & day)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetPartNumber(char * buf, size_t bufSize)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetProductURL(char * buf, size_t bufSize)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetProductLabel(char * buf, size_t bufSize)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetVendorName(char * buf, size_t bufSize)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetProductName(char * buf, size_t bufSize)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetSerialNumber(char * buf, size_t bufSize)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    memcpy(buf, CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER, bufSize);
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetHardwareVersionString(char * buf, size_t bufSize)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetSpake2pVerifier(MutableByteSpan & verifierSpan, size_t & verifierLen)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    static const uint8_t kDefaultTestVerifier[97] = {
        0xb9, 0x61, 0x70, 0xaa, 0xe8, 0x03, 0x34, 0x68, 0x84, 0x72, 0x4f, 0xe9, 0xa3, 0xb2, 0x87, 0xc3, 0x03, 0x30, 0xc2, 0xa6,
        0x60, 0x37, 0x5d, 0x17, 0xbb, 0x20, 0x5a, 0x8c, 0xf1, 0xae, 0xcb, 0x35, 0x04, 0x57, 0xf8, 0xab, 0x79, 0xee, 0x25, 0x3a,
        0xb6, 0xa8, 0xe4, 0x6b, 0xb0, 0x9e, 0x54, 0x3a, 0xe4, 0x22, 0x73, 0x6d, 0xe5, 0x01, 0xe3, 0xdb, 0x37, 0xd4, 0x41, 0xfe,
        0x34, 0x49, 0x20, 0xd0, 0x95, 0x48, 0xe4, 0xc1, 0x82, 0x40, 0x63, 0x0c, 0x4f, 0xf4, 0x91, 0x3c, 0x53, 0x51, 0x38, 0x39,
        0xb7, 0xc0, 0x7f, 0xcc, 0x06, 0x27, 0xa1, 0xb8, 0x57, 0x3a, 0x14, 0x9f, 0xcd, 0x1f, 0xa4, 0x66, 0xcf,
    };

    verifierLen = sizeof(kDefaultTestVerifier);
    if (verifierSpan.size() < verifierLen)
    {
        return CHIP_ERROR_BUFFER_TOO_SMALL;
    }
    memcpy(verifierSpan.data(), &kDefaultTestVerifier[0], verifierLen);
    verifierSpan.reduce_size(verifierLen);
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetCertificationDeclaration(MutableByteSpan & outBufferSpan)
{

#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    //-> 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 = "CSA00000SWC00000-00"
    //-> security_level = 0
    //-> security_information = 0
    //-> version_number = 1
    //-> certification_type = 0
    //-> dac_origin_vendor_id is not present
    //-> dac_origin_product_id is not present
    static const uint8_t kCdForAllExamples[539] = {
        0x30, 0x82, 0x02, 0x17, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x02, 0x08, 0x30,
        0x82, 0x02, 0x04, 0x02, 0x01, 0x03, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02,
        0x01, 0x30, 0x82, 0x01, 0x70, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0xa0, 0x82, 0x01, 0x61,
        0x04, 0x82, 0x01, 0x5d, 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, 0x43, 0x53, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x53, 0x57, 0x43, 0x30, 0x30, 0x30, 0x30, 0x30, 0x2d, 0x30, 0x30,
        0x24, 0x05, 0x00, 0x24, 0x06, 0x00, 0x24, 0x07, 0x01, 0x24, 0x08, 0x00, 0x18, 0x31, 0x7c, 0x30, 0x7a, 0x02, 0x01, 0x03,
        0x80, 0x14, 0xfe, 0x34, 0x3f, 0x95, 0x99, 0x47, 0x76, 0x3b, 0x61, 0xee, 0x45, 0x39, 0x13, 0x13, 0x38, 0x49, 0x4f, 0xe6,
        0x7d, 0x8e, 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, 0x46, 0x30, 0x44, 0x02, 0x20, 0x4a, 0x12, 0xf8, 0xd4, 0x2f, 0x90, 0x23,
        0x5c, 0x05, 0xa7, 0x71, 0x21, 0xcb, 0xeb, 0xae, 0x15, 0xd5, 0x90, 0x14, 0x65, 0x58, 0xe9, 0xc9, 0xb4, 0x7a, 0x1a, 0x38,
        0xf7, 0xa3, 0x6a, 0x7d, 0xc5, 0x02, 0x20, 0x20, 0xa4, 0x74, 0x28, 0x97, 0xc3, 0x0a, 0xed, 0xa0, 0xa5, 0x6b, 0x36, 0xe1,
        0x4e, 0xbb, 0xc8, 0x5b, 0xbd, 0xb7, 0x44, 0x93, 0xf9, 0x93, 0x58, 0x1e, 0xb0, 0x44, 0x4e, 0xd6, 0xca, 0x94, 0x0b
    };

    return CopySpanToMutableSpan(ByteSpan{ kCdForAllExamples }, outBufferSpan);
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetFirmwareInformation(MutableByteSpan & firmwareInformationSpan)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetDeviceAttestationCert(MutableByteSpan & attestationCertSpan)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    static const uint8_t kDevelopmentDAC_Cert_FFF1_8004[493] = {
        0x30, 0x82, 0x01, 0xe9, 0x30, 0x82, 0x01, 0x8e, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x08, 0x1e, 0x06, 0x7f, 0x3b, 0xfe,
        0xcd, 0xd8, 0x13, 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, 0x34, 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, 0x34, 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, 0x50, 0x41, 0x38, 0xef, 0x31, 0xc9, 0xdd, 0x16, 0x0e, 0xb4, 0x6c, 0x6c, 0x17, 0x11, 0x4f, 0x9d,
        0x72, 0x88, 0x40, 0x80, 0x1f, 0x73, 0xbb, 0x9b, 0x5a, 0x2c, 0x51, 0x91, 0xc9, 0xb2, 0x06, 0x63, 0x01, 0x9d, 0x94, 0x76,
        0xd1, 0x93, 0x1b, 0x93, 0xff, 0x47, 0xf4, 0x32, 0x56, 0x37, 0x90, 0x35, 0xd2, 0x29, 0x62, 0x0b, 0x7e, 0x21, 0x0e, 0x59,
        0x2f, 0x26, 0x43, 0x7d, 0x2d, 0x57, 0x62, 0x05, 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, 0xa0, 0xa7, 0x1c, 0x2a, 0x5f, 0x74, 0x45,
        0x20, 0x5b, 0x12, 0xa6, 0x28, 0xca, 0xb7, 0x16, 0x45, 0xba, 0x2d, 0x5e, 0x72, 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, 0x49,
        0x00, 0x30, 0x46, 0x02, 0x21, 0x00, 0xe7, 0x79, 0xeb, 0x8b, 0xbb, 0xd8, 0xba, 0x28, 0x68, 0xd3, 0x7b, 0xfc, 0x3a, 0x0e,
        0x33, 0x87, 0x03, 0xdb, 0xe4, 0x5c, 0x54, 0x09, 0x8c, 0x8a, 0xe4, 0xa3, 0x84, 0x4e, 0xf5, 0xc8, 0x2b, 0x5b, 0x02, 0x21,
        0x00, 0x90, 0xe7, 0x6b, 0x2b, 0x83, 0x73, 0x92, 0xab, 0x29, 0x40, 0x39, 0x10, 0x40, 0xf6, 0x4d, 0xc7, 0x8c, 0x53, 0x01,
        0xac, 0x9d, 0x08, 0x66, 0x4f, 0xf6, 0xd0, 0x10, 0x4a, 0xfe, 0x98, 0xfc, 0x80,
    };

    return CopySpanToMutableSpan(ByteSpan(kDevelopmentDAC_Cert_FFF1_8004), attestationCertSpan);
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetProductAttestationIntermediateCert(MutableByteSpan & intermediateCertSpan)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    static const uint8_t kDevelopmentPAI_Cert_FFF1[463] = {
        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(kDevelopmentPAI_Cert_FFF1), intermediateCertSpan);
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetSpake2pSalt(MutableByteSpan & saltSpan)
{
#if !CONFIG_STM32_FACTORY_DATA_ENABLE
    static const uint8_t kDefaultTestVerifierSalt[16] = {
        0x53, 0x50, 0x41, 0x4b, 0x45, 0x32, 0x50, 0x20, 0x4b, 0x65, 0x79, 0x20, 0x53, 0x61, 0x6c, 0x74,
    };

    size_t saltLen = sizeof(kDefaultTestVerifierSalt);
    if (saltSpan.size() < saltLen)
    {
        return CHIP_ERROR_BUFFER_TOO_SMALL;
    }
    memcpy(saltSpan.data(), &kDefaultTestVerifierSalt[0], saltLen);
    saltSpan.reduce_size(saltLen);
    return CHIP_NO_ERROR;
#else
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#endif
}

CHIP_ERROR FactoryDataProvider::GetRotatingDeviceIdUniqueId(MutableByteSpan & uniqueIdSpan)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

CHIP_ERROR FactoryDataProvider::GetEnableKey(MutableByteSpan & enableKeySpan)
{
    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}

} // namespace DeviceLayer
} // namespace chip