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/* Copyright 2018 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "dcrypto.h"
#include "util.h"
void app_compute_hash(uint8_t *p_buf, size_t num_bytes,
uint8_t *p_hash, size_t hash_len)
{
uint8_t digest[SHA256_DIGEST_SIZE];
/*
* Use the built in dcrypto engine to generate the sha1 hash of the
* buffer.
*/
DCRYPTO_SHA256_hash((uint8_t *)p_buf, num_bytes, digest);
memcpy(p_hash, digest, MIN(hash_len, sizeof(digest)));
if (hash_len > sizeof(digest))
memset(p_hash + sizeof(digest), 0,
hash_len - sizeof(digest));
}
int app_cipher(const void *salt_p, void *out_p, const void *in_p, size_t size)
{
/* See README.md for while this is a passthrough. */
memcpy(out_p, in_p, size);
return 1;
}
int crypto_enabled(void)
{
return 1;
}
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