| 1 | /*
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| 2 | * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | /*
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| 11 | * MDC2 low level APIs are deprecated for public use, but still ok for
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| 12 | * internal use.
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| 13 | */
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| 14 | #include "internal/deprecated.h"
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| 15 |
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| 16 | #include <openssl/crypto.h>
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| 17 | #include <openssl/params.h>
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| 18 | #include <openssl/mdc2.h>
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| 19 | #include <openssl/core_names.h>
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| 20 | #include <openssl/err.h>
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| 21 | #include <openssl/proverr.h>
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| 22 | #include "prov/digestcommon.h"
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| 23 | #include "prov/implementations.h"
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| 24 |
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| 25 | static OSSL_FUNC_digest_set_ctx_params_fn mdc2_set_ctx_params;
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| 26 | static OSSL_FUNC_digest_settable_ctx_params_fn mdc2_settable_ctx_params;
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| 27 |
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| 28 | static const OSSL_PARAM known_mdc2_settable_ctx_params[] = {
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| 29 | OSSL_PARAM_uint(OSSL_DIGEST_PARAM_PAD_TYPE, NULL),
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| 30 | OSSL_PARAM_END
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| 31 | };
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| 32 |
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| 33 | static const OSSL_PARAM *mdc2_settable_ctx_params(ossl_unused void *ctx,
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| 34 | ossl_unused void *provctx)
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| 35 | {
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| 36 | return known_mdc2_settable_ctx_params;
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| 37 | }
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| 38 |
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| 39 | static int mdc2_set_ctx_params(void *vctx, const OSSL_PARAM params[])
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| 40 | {
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| 41 | const OSSL_PARAM *p;
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| 42 | MDC2_CTX *ctx = (MDC2_CTX *)vctx;
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| 43 |
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| 44 | if (ctx == NULL)
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| 45 | return 0;
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| 46 | if (params == NULL)
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| 47 | return 1;
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| 48 |
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| 49 | p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_PAD_TYPE);
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| 50 | if (p != NULL && !OSSL_PARAM_get_uint(p, &ctx->pad_type)) {
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| 51 | ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
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| 52 | return 0;
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| 53 | }
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| 54 | return 1;
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| 55 | }
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| 56 |
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| 57 | /* ossl_mdc2_functions */
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| 58 | IMPLEMENT_digest_functions_with_settable_ctx(
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| 59 | mdc2, MDC2_CTX, MDC2_BLOCK, MDC2_DIGEST_LENGTH, 0,
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| 60 | MDC2_Init, MDC2_Update, MDC2_Final,
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| 61 | mdc2_settable_ctx_params, mdc2_set_ctx_params)
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