Hi. I'm using nRF52832, SDK13.0.0.
I need SHA256.
My code is
NRF_CRYPTO_HASH_CREATE(init_packet_hash, SHA256);
const nrf_crypto_hash_info_t hash_info_sha256 =
{
.hash_type = NRF_CRYPTO_HASH_TYPE_SHA256,
.endian_type = NRF_CRYPTO_ENDIAN_LE
};
void hash_test()
{
uint8_t p_init_cmd[32];
uint32_t init_cmd_len = 32;
for(int i=0;i<32;i++) p_init_cmd[i]=i;
SEGGER_RTT_printf_log_Hex(0, RTT_CTRL_TEXT_CYAN"p_init_cmd : ", p_init_cmd, 32);
ret_code_t err_code = NRF_SUCCESS;
err_code = nrf_crypto_hash_compute(hash_info_sha256, p_init_cmd, init_cmd_len, &init_packet_hash);
SEGGER_RTT_printf_log(0, "hash_info_sha256, err_code=0x%x\n", err_code);
SEGGER_RTT_printf_log_Hex(0, "init_packet_hash : ", init_packet_hash.p_value, 32);
}
static void crypto_init(void)
{
ret_code_t err_code = nrf_crypto_init();
APP_ERROR_CHECK(err_code);
}
int main(void)
{
......
crypto_init();
hash_test();
}
in nrf_crypto_sw_hash.c
uint32_t nrf_crypto_hash_compute(nrf_crypto_hash_info_t hash_info,
uint8_t const * p_data,
uint32_t len,
nrf_value_length_t * p_hash)
{
uint32_t ret_val;
uint32_t hash_size;
sha256_context_t hash_context;
nrf_value_length_t hash_context_desc =
{
.p_value = (uint8_t*)&hash_context,
.length = sizeof(hash_context)
};
// Basic parameter testing.
if (p_hash == NULL || p_data == NULL)
{
return NRF_ERROR_NULL;
}
if (p_hash->p_value == NULL)
{
return NRF_ERROR_INVALID_ADDR;
}
// Currently SHA256 is the only available hash algorithm
if (hash_info.hash_type != NRF_CRYPTO_HASH_TYPE_SHA256)
{
return NRF_ERROR_NOT_SUPPORTED;
}
// Check if hash is correct size.
ret_val = nrf_crypto_hash_size_get(hash_info.hash_type, &hash_size);
if (ret_val != NRF_SUCCESS)
{
return ret_val;
}
if (hash_size != p_hash->length)
{
return NRF_ERROR_INVALID_LENGTH;
}
ret_val = nrf_crypto_hash_init(hash_info, &hash_context_desc);
if (ret_val != NRF_SUCCESS)
{
return ret_val;
}
ret_val = nrf_crypto_hash_update(&hash_context_desc, p_data, len);
if (ret_val != NRF_SUCCESS)
{
return ret_val;
}
ret_val = nrf_crypto_hash_finalize(hash_info, &hash_context_desc, p_hash);
return ret_val;
}
But result is not same as SHA-256 Calculator(http://www.xorbin.com/tools/sha256-hash-calculator).
What could be the problem?
I need your help.
