1 /*
2 * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 /*
11 * MDC2 low level APIs are deprecated for public use, but still ok for
12 * internal use.
13 */
14 #include "internal/deprecated.h"
15
16 #include <openssl/crypto.h>
17 #include <openssl/params.h>
18 #include <openssl/mdc2.h>
19 #include <openssl/core_names.h>
20 #include <openssl/err.h>
21 #include <openssl/proverr.h>
22 #include "prov/digestcommon.h"
23 #include "prov/implementations.h"
24
25 static OSSL_FUNC_digest_set_ctx_params_fn mdc2_set_ctx_params;
26 static OSSL_FUNC_digest_settable_ctx_params_fn mdc2_settable_ctx_params;
27
28 static const OSSL_PARAM known_mdc2_settable_ctx_params[] = {
29 OSSL_PARAM_uint(OSSL_DIGEST_PARAM_PAD_TYPE, NULL),
30 OSSL_PARAM_END
31 };
32
mdc2_settable_ctx_params(ossl_unused void * ctx,ossl_unused void * provctx)33 static const OSSL_PARAM *mdc2_settable_ctx_params(ossl_unused void *ctx,
34 ossl_unused void *provctx)
35 {
36 return known_mdc2_settable_ctx_params;
37 }
38
mdc2_set_ctx_params(void * vctx,const OSSL_PARAM params[])39 static int mdc2_set_ctx_params(void *vctx, const OSSL_PARAM params[])
40 {
41 const OSSL_PARAM *p;
42 MDC2_CTX *ctx = (MDC2_CTX *)vctx;
43
44 if (ctx == NULL)
45 return 0;
46 if (ossl_param_is_empty(params))
47 return 1;
48
49 p = OSSL_PARAM_locate_const(params, OSSL_DIGEST_PARAM_PAD_TYPE);
50 if (p != NULL && !OSSL_PARAM_get_uint(p, &ctx->pad_type)) {
51 ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
52 return 0;
53 }
54 return 1;
55 }
56
57 /* ossl_mdc2_functions */
58 IMPLEMENT_digest_functions_with_settable_ctx(
59 mdc2, MDC2_CTX, MDC2_BLOCK, MDC2_DIGEST_LENGTH, 0,
60 MDC2_Init, MDC2_Update, MDC2_Final,
61 mdc2_settable_ctx_params, mdc2_set_ctx_params)
62
