engines/ccgost/md.h

   1 #ifndef GOST_MD_H
   2 #define GOST_MD_H
   3 /**********************************************************************
   4  *                             md.h                                   *
   5  *             Copyright (c) 2005-2006 Cryptocom LTD                  *
   6  *       This file is distributed under the same license as OpenSSL   *
   7  *                                                                    *
   8  *      Declaration of GOST R 34.11 bindings to OpenSSL                   *
   9  *                                                                                                                                        *
  10  *          Requires OpenSSL 0.9.9 for compilation                    *
  11  **********************************************************************/
  12 #include <unistd.h>
  13 #include <openssl/err.h>
  14 #include <openssl/evp.h>
  15 #include "gost89.h"
  16 #include "gosthash.h"
  17 #ifdef __cplusplus
  18  extern "C" {
  19 #endif
  20
  21          /* Structure used as EVP_MD_CTX-md_data.
  22           * It allows to avoid storing in the md-data pointers to
  23           * dynamically allocated memory.
  24           *
  25           * I cannot invent better way to avoid memory leaks, because
  26           * openssl insist on invoking Init on Final-ed digests, and there
  27           * is no reliable way to find out whether pointer in the passed
  28           * md_data is valid or not.
  29           * */
  30 struct ossl_gost_digest_ctx {
  31         gost_hash_ctx dctx;
  32         gost_ctx cctx;
  33 };
  34
  35 extern EVP_MD digest_gost;
  36
  37
  38 #ifdef __cplusplus
  39   };
  40 #endif
  41 #endif