Chengdu Ebyte Electronic Technology Co., Ltd. E104-BT5040U Datasheet
Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd.
4.3The Modified Codes
4.3.Public Key(dfu_public_key.c)
#ifdef NRF_DFU_DEBUG_VERSION
/** @brief Public key used to verify DFU images */
__ALIGN(4)const uint8_t pk[64] =
{
0x1b,0x0c,0xae,0x9f,0x22,0x80,0x60,0xa1,0x85,0xa0,0xba,0x18,0xe7,0xaf,0xfc,0x94,0x63,0xfb,0xd2,0x58,0xac,
0xde,0x1c,0xa0,0x1d,0x2a,0xd2,0x0d,0x25,0x72,0x9f,0x37,
0x57,0x00,0xc4,0xf6,0x0b,0x92,0x21,0x44,0x85,0x70,0x5d,0xbe,0x62,0x0d,0x9e,0x09,0x82,0x02,0xf8,0xec,
0x3b,0xcd,0x06,0xb5,0xc9,0x68,0xc7,0xff,0x2e,0xe7,0x95,0x4a
};
#else
/** @brief Public key used to verify DFU images */
__ALIGN(4)const uint8_t pk[64] =
{
0xc2,0xdf,0x7a,0x7f,0x4a,0x64,0xcd,0x56,0x63,0x77,0x82,0x94,0x49,0x70,0xe8,0x1b,0x8f,0x69,0x31,0xd7,0xcb,
0x71,0x0f,0x2d,0xcc,0x03,0x7d,0x6f,0x26,0x14,0x1d,0x32,
0x55,0xa2,0x2f,0xea,0x7e,0x1d,0xca,0x52,0xa0,0x86,0x9f,0xee,0x16,0x43,0xc8,0x8e,0x3f,0xbc,0xcc,0xa3,0x2b,
0x36,0xe1,0x0e,0xdb,0xeb,0x6f,0x7b,0x3c,0x79,0x67,0x55
};
#endif
4.3.2 Disable Hash value check function
File Routing：“nRF5SDK160098a08e2\components\libraries\bootloader\dfu\nrf_dfu_validation.c”. Disable below codes.
err_code =nrf_crypto_ecdsa_verify(&m_verify_context,
&m_public_key,
m_init_packet_hash,
hash_len,
m_signature,
sizeof(m_signature));
// if (err_code != NRF_SUCCESS)
// {
// NRF_LOG_ERROR("Signature failed (err_code: 0x%x)", err_code);
// NRF_LOG_DEBUG("Signature:");
// NRF_LOG_HEXDUMP_DEBUG(m_signature, sizeof(m_signature));
// NRF_LOG_DEBUG("Hash:");
// NRF_LOG_HEXDUMP_DEBUG(m_init_packet_hash, hash_len);
