int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx, unsigned char output[16] )
{
if (st_md5_restore_hw_context(ctx) != 1) {
// Return HASH_BUSY timeout error here
return MBEDTLS_ERR_MD5_HW_ACCEL_FAILED;
}
/* Last accumulation for extra bytes in sbuf_len */
/* This sets HW flags in case mbedtls_md5_update has not been called yet */
if (HAL_HASH_MD5_Accumulate(&ctx->hhash_md5, ctx->sbuf, ctx->sbuf_len) != 0) {
return MBEDTLS_ERR_MD5_HW_ACCEL_FAILED;
}
mbedtls_zeroize( ctx->sbuf, ST_MD5_BLOCK_SIZE);
ctx->sbuf_len = 0;
__HAL_HASH_START_DIGEST();
if (HAL_HASH_MD5_Finish(&ctx->hhash_md5, output, 10)) {
return MBEDTLS_ERR_MD5_HW_ACCEL_FAILED;
}
if (st_md5_save_hw_context(ctx) != 1) {
// Return HASH_BUSY timeout error here
return MBEDTLS_ERR_MD5_HW_ACCEL_FAILED;
}
return 0;
}
int mbedtls_sha256_finish_ret(mbedtls_sha256_context *ctx, unsigned char output[32])
{
if (st_sha256_restore_hw_context(ctx) != 1) {
// Return HASH_BUSY timeout error here
return MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED;
}
/* Last accumulation for extra bytes in sbuf_len */
/* This allows the HW flags to be in place in case mbedtls_sha256_update has not been called yet */
if (ctx->is224 == 0) {
if (HAL_HASHEx_SHA256_Accumulate(&ctx->hhash_sha256, ctx->sbuf, ctx->sbuf_len) != 0) {
return MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED;
}
} else {
if (HAL_HASHEx_SHA224_Accumulate(&ctx->hhash_sha256, ctx->sbuf, ctx->sbuf_len) != 0) {
return MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED;
}
}
mbedtls_zeroize(ctx->sbuf, ST_SHA256_BLOCK_SIZE);
ctx->sbuf_len = 0;
__HAL_HASH_START_DIGEST();
if (ctx->is224 == 0) {
if (HAL_HASHEx_SHA256_Finish(&ctx->hhash_sha256, output, 10) != 0) {
return MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED;
}
} else {
if (HAL_HASHEx_SHA224_Finish(&ctx->hhash_sha256, output, 10) != 0) {
return MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED;
}
}
if (st_sha256_save_hw_context(ctx) != 1) {
// Return HASH_BUSY timeout error here
return MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED;
}
return 0;
}