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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/crypto/openssl/providers/implementations/digests/sha2_prov.c
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/*

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 * Copyright 2019-2023 The OpenSSL Project Authors. All Rights Reserved.

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 *

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 * Licensed under the Apache License 2.0 (the "License").  You may not use

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 * this file except in compliance with the License.  You can obtain a copy

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 * in the file LICENSE in the source distribution or at

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 * https://www.openssl.org/source/license.html

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 */

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/*

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 * SHA low level APIs are deprecated for public use, but still ok for

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 * internal use.

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 */

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#include "internal/deprecated.h"

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#include <openssl/crypto.h>

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#include <openssl/core_dispatch.h>

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#include <openssl/evp.h>

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#include <openssl/sha.h>

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#include <openssl/params.h>

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#include <openssl/core_names.h>

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#include "prov/digestcommon.h"

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#include "prov/implementations.h"

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#include "crypto/sha.h"

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#define SHA2_FLAGS PROV_DIGEST_FLAG_ALGID_ABSENT

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static OSSL_FUNC_digest_set_ctx_params_fn sha1_set_ctx_params;

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static OSSL_FUNC_digest_settable_ctx_params_fn sha1_settable_ctx_params;

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static const OSSL_PARAM known_sha1_settable_ctx_params[] = {

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    {OSSL_DIGEST_PARAM_SSL3_MS, OSSL_PARAM_OCTET_STRING, NULL, 0, 0},

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    OSSL_PARAM_END

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};

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static const OSSL_PARAM *sha1_settable_ctx_params(ossl_unused void *ctx,

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                                                  ossl_unused void *provctx)

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{

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    return known_sha1_settable_ctx_params;

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}

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/* Special set_params method for SSL3 */

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static int sha1_set_ctx_params(void *vctx, const OSSL_PARAM params[])

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{

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    const OSSL_PARAM *p;

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    SHA_CTX *ctx = (SHA_CTX *)vctx;

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    if (ctx == NULL)

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        return 0;

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    if (ossl_param_is_empty(params))

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        return 1;

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    p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_SSL3_MS);

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    if (p != NULL && p->data_type == OSSL_PARAM_OCTET_STRING)

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        return ossl_sha1_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET,

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                              p->data_size, p->data);

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    return 1;

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}

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/* ossl_sha1_functions */

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IMPLEMENT_digest_functions_with_settable_ctx(

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    sha1, SHA_CTX, SHA_CBLOCK, SHA_DIGEST_LENGTH, SHA2_FLAGS,

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    SHA1_Init, SHA1_Update, SHA1_Final,

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    sha1_settable_ctx_params, sha1_set_ctx_params)

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/* ossl_sha224_functions */

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IMPLEMENT_digest_functions(sha224, SHA256_CTX,

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                           SHA256_CBLOCK, SHA224_DIGEST_LENGTH, SHA2_FLAGS,

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                           SHA224_Init, SHA224_Update, SHA224_Final)

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/* ossl_sha256_functions */

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IMPLEMENT_digest_functions(sha256, SHA256_CTX,

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                           SHA256_CBLOCK, SHA256_DIGEST_LENGTH, SHA2_FLAGS,

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                           SHA256_Init, SHA256_Update, SHA256_Final)

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#ifndef FIPS_MODULE

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/* ossl_sha256_192_functions */

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IMPLEMENT_digest_functions(sha256_192, SHA256_CTX,

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                           SHA256_CBLOCK, SHA256_192_DIGEST_LENGTH, SHA2_FLAGS,

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                           ossl_sha256_192_init, SHA256_Update, SHA256_Final)

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#endif

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/* ossl_sha384_functions */

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IMPLEMENT_digest_functions(sha384, SHA512_CTX,

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                           SHA512_CBLOCK, SHA384_DIGEST_LENGTH, SHA2_FLAGS,

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                           SHA384_Init, SHA384_Update, SHA384_Final)

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/* ossl_sha512_functions */

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IMPLEMENT_digest_functions(sha512, SHA512_CTX,

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                           SHA512_CBLOCK, SHA512_DIGEST_LENGTH, SHA2_FLAGS,

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                           SHA512_Init, SHA512_Update, SHA512_Final)

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/* ossl_sha512_224_functions */

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IMPLEMENT_digest_functions(sha512_224, SHA512_CTX,

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                           SHA512_CBLOCK, SHA224_DIGEST_LENGTH, SHA2_FLAGS,

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                           sha512_224_init, SHA512_Update, SHA512_Final)

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/* ossl_sha512_256_functions */

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IMPLEMENT_digest_functions(sha512_256, SHA512_CTX,

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                           SHA512_CBLOCK, SHA256_DIGEST_LENGTH, SHA2_FLAGS,

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                           sha512_256_init, SHA512_Update, SHA512_Final)

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