crypto/openssh/openbsd-compat/sha2.h

   1 /*      $OpenBSD: sha2.h,v 1.6 2004/06/22 01:57:30 jfb Exp $    */
   2
   3 /*
   4  * FILE:        sha2.h
   5  * AUTHOR:      Aaron D. Gifford <me@aarongifford.com>
   6  *
   7  * Copyright (c) 2000-2001, Aaron D. Gifford
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the copyright holder nor the names of contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
  35  */
  36
  37 /* OPENBSD ORIGINAL: include/sha2.h */
  38
  39 #ifndef _SSHSHA2_H
  40 #define _SSHSHA2_H
  41
  42 #include "includes.h"
  43
  44 #include <openssl/opensslv.h>
  45
  46 #if !defined(HAVE_EVP_SHA256) && !defined(HAVE_SHA256_UPDATE) && \
  47     (OPENSSL_VERSION_NUMBER >= 0x00907000L)
  48
  49 /*** SHA-256/384/512 Various Length Definitions ***********************/
  50 #define SHA256_BLOCK_LENGTH             64
  51 #define SHA256_DIGEST_LENGTH            32
  52 #define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
  53 #define SHA384_BLOCK_LENGTH             128
  54 #define SHA384_DIGEST_LENGTH            48
  55 #define SHA384_DIGEST_STRING_LENGTH     (SHA384_DIGEST_LENGTH * 2 + 1)
  56 #define SHA512_BLOCK_LENGTH             128
  57 #define SHA512_DIGEST_LENGTH            64
  58 #define SHA512_DIGEST_STRING_LENGTH     (SHA512_DIGEST_LENGTH * 2 + 1)
  59
  60
  61 /*** SHA-256/384/512 Context Structures *******************************/
  62 typedef struct _SHA256_CTX {
  63         u_int32_t       state[8];
  64         u_int64_t       bitcount;
  65         u_int8_t        buffer[SHA256_BLOCK_LENGTH];
  66 } SHA256_CTX;
  67 typedef struct _SHA512_CTX {
  68         u_int64_t       state[8];
  69         u_int64_t       bitcount[2];
  70         u_int8_t        buffer[SHA512_BLOCK_LENGTH];
  71 } SHA512_CTX;
  72
  73 #if 0
  74 typedef SHA512_CTX SHA384_CTX;
  75 #endif
  76
  77 void SHA256_Init(SHA256_CTX *);
  78 void SHA256_Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
  79 void SHA256_Update(SHA256_CTX *, const u_int8_t *, size_t)
  80         __attribute__((__bounded__(__string__,2,3)));
  81 void SHA256_Pad(SHA256_CTX *);
  82 void SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA256_CTX *)
  83         __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
  84 char *SHA256_End(SHA256_CTX *, char *)
  85         __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
  86 char *SHA256_File(const char *, char *)
  87         __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
  88 char *SHA256_FileChunk(const char *, char *, off_t, off_t)
  89         __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
  90 char *SHA256_Data(const u_int8_t *, size_t, char *)
  91         __attribute__((__bounded__(__string__,1,2)))
  92         __attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH)));
  93
  94 #if 0
  95 void SHA384_Init(SHA384_CTX *);
  96 void SHA384_Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
  97 void SHA384_Update(SHA384_CTX *, const u_int8_t *, size_t)
  98         __attribute__((__bounded__(__string__,2,3)));
  99 void SHA384_Pad(SHA384_CTX *);
 100 void SHA384_Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA384_CTX *)
 101         __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
 102 char *SHA384_End(SHA384_CTX *, char *)
 103         __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
 104 char *SHA384_File(const char *, char *)
 105         __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
 106 char *SHA384_FileChunk(const char *, char *, off_t, off_t)
 107         __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
 108 char *SHA384_Data(const u_int8_t *, size_t, char *)
 109         __attribute__((__bounded__(__string__,1,2)))
 110         __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH)));
 111 #endif /* 0 */
 112
 113 void SHA512_Init(SHA512_CTX *);
 114 void SHA512_Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
 115 void SHA512_Update(SHA512_CTX *, const u_int8_t *, size_t)
 116         __attribute__((__bounded__(__string__,2,3)));
 117 void SHA512_Pad(SHA512_CTX *);
 118 void SHA512_Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA512_CTX *)
 119         __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
 120 char *SHA512_End(SHA512_CTX *, char *)
 121         __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
 122 char *SHA512_File(const char *, char *)
 123         __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
 124 char *SHA512_FileChunk(const char *, char *, off_t, off_t)
 125         __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
 126 char *SHA512_Data(const u_int8_t *, size_t, char *)
 127         __attribute__((__bounded__(__string__,1,2)))
 128         __attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH)));
 129
 130 #endif /* !defined(HAVE_EVP_SHA256) && !defined(HAVE_SHA256_UPDATE) && \
 131     (OPENSSL_VERSION_NUMBER >= 0x00907000L) */
 132
 133 #endif /* _SSHSHA2_H */