lib/libcrypto/evp/m_gost2814789.c

   1 /* $OpenBSD: m_gost2814789.c,v 1.2 2014/11/09 23:06:50 miod Exp $ */
   2 /*
   3  * Copyright (c) 2014 Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
   4  * Copyright (c) 2005-2006 Cryptocom LTD
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  *
  18  * 3. All advertising materials mentioning features or use of this
  19  *    software must display the following acknowledgment:
  20  *    "This product includes software developed by the OpenSSL Project
  21  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  22  *
  23  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  24  *    endorse or promote products derived from this software without
  25  *    prior written permission. For written permission, please contact
  26  *    openssl-core@openssl.org.
  27  *
  28  * 5. Products derived from this software may not be called "OpenSSL"
  29  *    nor may "OpenSSL" appear in their names without prior written
  30  *    permission of the OpenSSL Project.
  31  *
  32  * 6. Redistributions of any form whatsoever must retain the following
  33  *    acknowledgment:
  34  *    "This product includes software developed by the OpenSSL Project
  35  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  36  *
  37  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  38  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  39  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  40  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  41  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  43  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  44  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  45  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  46  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  47  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  48  * OF THE POSSIBILITY OF SUCH DAMAGE.
  49  * ====================================================================
  50  */
  51 #include <openssl/opensslconf.h>
  52
  53 #ifndef OPENSSL_NO_GOST
  54
  55 #include <openssl/evp.h>
  56 #include <openssl/gost.h>
  57 #include <openssl/objects.h>
  58
  59 static int
  60 gost2814789_init(EVP_MD_CTX *ctx)
  61 {
  62         return GOST2814789IMIT_Init(ctx->md_data,
  63             NID_id_Gost28147_89_CryptoPro_A_ParamSet);
  64 }
  65
  66 static int
  67 gost2814789_update(EVP_MD_CTX *ctx, const void *data, size_t count)
  68 {
  69         return GOST2814789IMIT_Update(ctx->md_data, data, count);
  70 }
  71
  72 static int
  73 gost2814789_final(EVP_MD_CTX *ctx, unsigned char *md)
  74 {
  75         return GOST2814789IMIT_Final(md, ctx->md_data);
  76 }
  77
  78 static int
  79 gost2814789_md_ctrl(EVP_MD_CTX *ctx, int cmd, int p1, void *p2)
  80 {
  81         GOST2814789IMIT_CTX *gctx = ctx->md_data;
  82
  83         switch (cmd) {
  84         case EVP_MD_CTRL_SET_KEY:
  85                 return Gost2814789_set_key(&gctx->cipher, p2, p1);
  86         case EVP_MD_CTRL_GOST_SET_SBOX:
  87                 return Gost2814789_set_sbox(&gctx->cipher, p1);
  88         }
  89         return -2;
  90 }
  91
  92 static const EVP_MD gost2814789imit_md = {
  93         .type = NID_id_Gost28147_89_MAC,
  94         .pkey_type = NID_undef,
  95         .md_size = GOST2814789IMIT_LENGTH,
  96         .flags = 0,
  97         .init = gost2814789_init,
  98         .update = gost2814789_update,
  99         .final = gost2814789_final,
 100         .block_size = GOST2814789IMIT_CBLOCK,
 101         .ctx_size = sizeof(EVP_MD *) + sizeof(GOST2814789IMIT_CTX),
 102         .md_ctrl = gost2814789_md_ctrl,
 103 };
 104
 105 const EVP_MD *
 106 EVP_gost2814789imit(void)
 107 {
 108         return (&gost2814789imit_md);
 109 }
 110 #endif