254e29aca4
The following mbedTLS APIs have been deprecated and replaced with the new ones which return error codes: mbedtls_shaX_starts -> mbedtls_shaX_starts_ret mbedtls_shaX_update -> mbedtls_shaX_update_ret mbedtls_shaX_finish -> mbedtls_shaX_finish_ret mbedtls_shaX_process -> mbedtls_shaX_internal_process Update hardware implementations of SHA functions, and other IDF components which used above functions, to use new versions.
106 lines
3.9 KiB
C
106 lines
3.9 KiB
C
// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// 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 "crypto_hash_sha512.h"
|
|
#include "mbedtls/sha512.h"
|
|
#include <string.h>
|
|
|
|
#ifdef MBEDTLS_SHA512_ALT
|
|
/* Wrapper only works if the libsodium context structure can be mapped
|
|
directly to the mbedTLS context structure.
|
|
|
|
For ESP32 hardware SHA, the problems are fitting all the data in
|
|
the libsodium state structure, and also that libsodium doesn't
|
|
have mbedtls_sha512_free() or mbedtls_sha512_clone() so we can't
|
|
manage the hardware state in a clean way.
|
|
*/
|
|
#error "This wrapper only support standard software mbedTLS SHA"
|
|
#endif
|
|
|
|
/* Sanity check that all the context fields have identical sizes
|
|
(this should be more or less given from the SHA512 algorithm)
|
|
|
|
Note that the meaning of the fields is *not* all the same. In libsodium,
|
|
SHA512 'count' is a 2xuin64_t *bit* count where count[0] == MSB. In mbedTLS,
|
|
SHA512 'total' is a 2xuint64_t *byte* count where count[0] == LSB.
|
|
|
|
For this implementation, we don't convert so the libsodium state structure actually holds a binary copy of the
|
|
mbedTLS totals. This doesn't matter inside libsodium's documented API, but would matter if any callers try to use
|
|
the state's bit count.
|
|
*/
|
|
_Static_assert(sizeof(((crypto_hash_sha512_state *)0)->state) == sizeof(((mbedtls_sha512_context *)0)->state), "state mismatch");
|
|
_Static_assert(sizeof(((crypto_hash_sha512_state *)0)->count) == sizeof(((mbedtls_sha512_context *)0)->total), "count mismatch");
|
|
_Static_assert(sizeof(((crypto_hash_sha512_state *)0)->buf) == sizeof(((mbedtls_sha512_context *)0)->buffer), "buf mismatch");
|
|
|
|
/* Inline functions to convert between mbedTLS & libsodium
|
|
context structures
|
|
*/
|
|
|
|
static void sha512_mbedtls_to_libsodium(crypto_hash_sha512_state *ls_state, const mbedtls_sha512_context *mb_ctx)
|
|
{
|
|
memcpy(ls_state->count, mb_ctx->total, sizeof(ls_state->count));
|
|
memcpy(ls_state->state, mb_ctx->state, sizeof(ls_state->state));
|
|
memcpy(ls_state->buf, mb_ctx->buffer, sizeof(ls_state->buf));
|
|
}
|
|
|
|
static void sha512_libsodium_to_mbedtls(mbedtls_sha512_context *mb_ctx, crypto_hash_sha512_state *ls_state)
|
|
{
|
|
memcpy(mb_ctx->total, ls_state->count, sizeof(mb_ctx->total));
|
|
memcpy(mb_ctx->state, ls_state->state, sizeof(mb_ctx->state));
|
|
memcpy(mb_ctx->buffer, ls_state->buf, sizeof(mb_ctx->buffer));
|
|
mb_ctx->is384 = 0;
|
|
}
|
|
|
|
int
|
|
crypto_hash_sha512_init(crypto_hash_sha512_state *state)
|
|
{
|
|
mbedtls_sha512_context ctx;
|
|
mbedtls_sha512_init(&ctx);
|
|
int ret = mbedtls_sha512_starts_ret(&ctx, 0);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
sha512_mbedtls_to_libsodium(state, &ctx);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
crypto_hash_sha512_update(crypto_hash_sha512_state *state,
|
|
const unsigned char *in, unsigned long long inlen)
|
|
{
|
|
mbedtls_sha512_context ctx;
|
|
sha512_libsodium_to_mbedtls(&ctx, state);
|
|
int ret = mbedtls_sha512_update_ret(&ctx, in, inlen);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
sha512_mbedtls_to_libsodium(state, &ctx);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
crypto_hash_sha512_final(crypto_hash_sha512_state *state, unsigned char *out)
|
|
{
|
|
mbedtls_sha512_context ctx;
|
|
sha512_libsodium_to_mbedtls(&ctx, state);
|
|
return mbedtls_sha512_finish_ret(&ctx, out);
|
|
}
|
|
|
|
int
|
|
crypto_hash_sha512(unsigned char *out, const unsigned char *in,
|
|
unsigned long long inlen)
|
|
{
|
|
return mbedtls_sha512_ret(in, inlen, out, 0);
|
|
}
|