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/*
* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/crypto.h>
#include "prov/blake2.h"
#include "prov/digestcommon.h"
#include "prov/implementations.h"
int ossl_blake2s256_init(void *ctx)
{
BLAKE2S_PARAM P;
ossl_blake2s_param_init(&P);
return ossl_blake2s_init((BLAKE2S_CTX *)ctx, &P);
}
int ossl_blake2b512_init(void *ctx)
{
struct blake2b_md_data_st *mdctx = ctx;
ossl_blake2b_param_init(&mdctx->params);
return ossl_blake2b_init(&mdctx->ctx, &mdctx->params);
}
/* ossl_blake2s256_functions */
IMPLEMENT_digest_functions(blake2s256, BLAKE2S_CTX,
BLAKE2S_BLOCKBYTES, BLAKE2S_DIGEST_LENGTH, 0,
ossl_blake2s256_init, ossl_blake2s_update,
ossl_blake2s_final)
/* ossl_blake2b512_functions */
static OSSL_FUNC_digest_init_fn blake2b512_internal_init;
static OSSL_FUNC_digest_newctx_fn blake2b512_newctx;
static OSSL_FUNC_digest_freectx_fn blake2b512_freectx;
static OSSL_FUNC_digest_dupctx_fn blake2b512_dupctx;
static OSSL_FUNC_digest_final_fn blake2b512_internal_final;
static OSSL_FUNC_digest_get_params_fn blake2b512_get_params;
static int blake2b512_internal_init(void *ctx, const OSSL_PARAM params[])
{
return ossl_prov_is_running() && ossl_blake2b_set_ctx_params(ctx, params)
&& ossl_blake2b512_init(ctx);
}
static void *blake2b512_newctx(void *prov_ctx)
{
struct blake2b_md_data_st *ctx;
ctx = ossl_prov_is_running() ? OPENSSL_zalloc(sizeof(*ctx)) : NULL;
return ctx;
}
static void blake2b512_freectx(void *vctx)
{
struct blake2b_md_data_st *ctx;
ctx = (struct blake2b_md_data_st *)vctx;
OPENSSL_clear_free(ctx, sizeof(*ctx));
}
static void *blake2b512_dupctx(void *ctx)
{
struct blake2b_md_data_st *in, *ret;
in = (struct blake2b_md_data_st *)ctx;
ret = ossl_prov_is_running()? OPENSSL_malloc(sizeof(*ret)) : NULL;
if (ret != NULL)
*ret = *in;
return ret;
}
static int blake2b512_internal_final(void *ctx, unsigned char *out,
size_t *outl, size_t outsz)
{
struct blake2b_md_data_st *b_ctx;
b_ctx = (struct blake2b_md_data_st *)ctx;
*outl = b_ctx->ctx.outlen;
if (!ossl_prov_is_running())
return 0;
return (outsz > 0) ? ossl_blake2b_final(out, ctx) : 1;
}
static int blake2b512_get_params(OSSL_PARAM params[])
{
return ossl_digest_default_get_params(params, BLAKE2B_BLOCKBYTES, 64, 0);
}
const OSSL_DISPATCH ossl_blake2b512_functions[] =
{ {OSSL_FUNC_DIGEST_NEWCTX, (void (*)(void))blake2b512_newctx},
{OSSL_FUNC_DIGEST_UPDATE, (void (*)(void))ossl_blake2b_update},
{OSSL_FUNC_DIGEST_FINAL, (void (*)(void))blake2b512_internal_final},
{OSSL_FUNC_DIGEST_FREECTX, (void (*)(void))blake2b512_freectx},
{OSSL_FUNC_DIGEST_DUPCTX, (void (*)(void))blake2b512_dupctx},
{OSSL_FUNC_DIGEST_GET_PARAMS, (void (*)(void))blake2b512_get_params},
{OSSL_FUNC_DIGEST_GETTABLE_PARAMS,
(void (*)(void))ossl_digest_default_gettable_params},
{OSSL_FUNC_DIGEST_INIT, (void (*)(void))blake2b512_internal_init},
{OSSL_FUNC_DIGEST_SETTABLE_CTX_PARAMS,
(void (*)(void))ossl_blake2b_settable_ctx_params},
{OSSL_FUNC_DIGEST_SET_CTX_PARAMS,
(void (*)(void))ossl_blake2b_set_ctx_params}, {0, NULL} };
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