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 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 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 (params == NULL) 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