lib/hcrypto/sha.h

   1 /*
   2  * Copyright (c) 1995 - 2001 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   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 the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /* $Id$ */
  35
  36 #ifndef HEIM_SHA_H
  37 #define HEIM_SHA_H 1
  38
  39 /* symbol renaming */
  40 #define SHA1_Init hc_SHA1_Init
  41 #define SHA1_Update hc_SHA1_Update
  42 #define SHA1_Final hc_SHA1_Final
  43 #define SHA256_Init hc_SHA256_Init
  44 #define SHA256_Update hc_SHA256_Update
  45 #define SHA256_Final hc_SHA256_Final
  46
  47 /*
  48  * SHA-1
  49  */
  50
  51 #define SHA_DIGEST_LENGTH 20
  52
  53 struct sha {
  54   unsigned int sz[2];
  55   uint32_t counter[5];
  56   unsigned char save[64];
  57 };
  58
  59 typedef struct sha SHA_CTX;
  60
  61 void SHA1_Init (struct sha *m);
  62 void SHA1_Update (struct sha *m, const void *v, size_t len);
  63 void SHA1_Final (void *res, struct sha *m);
  64
  65 /*
  66  * SHA-2 256
  67  */
  68
  69 #define SHA256_DIGEST_LENGTH 32
  70
  71 struct hc_sha256state {
  72   unsigned int sz[2];
  73   uint32_t counter[8];
  74   unsigned char save[64];
  75 };
  76
  77 typedef struct hc_sha256state SHA256_CTX;
  78
  79 void SHA256_Init (SHA256_CTX *);
  80 void SHA256_Update (SHA256_CTX *, const void *, size_t);
  81 void SHA256_Final (void *, SHA256_CTX *);
  82
  83 #endif /* HEIM_SHA_H */