xref: /freebsd/lib/libmd/sha.h (revision 87c1627502a5dde91e5284118eec8682b60f27a2)
1  /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2   * All rights reserved.
3   *
4   * This package is an SSL implementation written
5   * by Eric Young (eay@cryptsoft.com).
6   * The implementation was written so as to conform with Netscapes SSL.
7   *
8   * This library is free for commercial and non-commercial use as long as
9   * the following conditions are aheared to.  The following conditions
10   * apply to all code found in this distribution, be it the RC4, RSA,
11   * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12   * included with this distribution is covered by the same copyright terms
13   * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14   *
15   * Copyright remains Eric Young's, and as such any Copyright notices in
16   * the code are not to be removed.
17   * If this package is used in a product, Eric Young should be given attribution
18   * as the author of the parts of the library used.
19   * This can be in the form of a textual message at program startup or
20   * in documentation (online or textual) provided with the package.
21   *
22   * Redistribution and use in source and binary forms, with or without
23   * modification, are permitted provided that the following conditions
24   * are met:
25   * 1. Redistributions of source code must retain the copyright
26   *    notice, this list of conditions and the following disclaimer.
27   * 2. Redistributions in binary form must reproduce the above copyright
28   *    notice, this list of conditions and the following disclaimer in the
29   *    documentation and/or other materials provided with the distribution.
30   * 3. All advertising materials mentioning features or use of this software
31   *    must display the following acknowledgement:
32   *    "This product includes cryptographic software written by
33   *     Eric Young (eay@cryptsoft.com)"
34   *    The word 'cryptographic' can be left out if the rouines from the library
35   *    being used are not cryptographic related :-).
36   * 4. If you include any Windows specific code (or a derivative thereof) from
37   *    the apps directory (application code) you must include an acknowledgement:
38   *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39   *
40   * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50   * SUCH DAMAGE.
51   *
52   * The licence and distribution terms for any publically available version or
53   * derivative of this code cannot be changed.  i.e. this code cannot simply be
54   * copied and put under another distribution licence
55   * [including the GNU Public Licence.]
56   *
57   * $FreeBSD$
58   */
59  
60  #ifndef _SHA_H_
61  #define _SHA_H_		1
62  
63  #include <sys/cdefs.h>
64  #include <sys/types.h>		/* XXX switch to machine/ansi.h and __ types */
65  
66  #define	SHA_CBLOCK	64
67  #define	SHA_LBLOCK	16
68  #define	SHA_BLOCK	16
69  #define	SHA_LAST_BLOCK  56
70  #define	SHA_LENGTH_BLOCK 8
71  #define	SHA_DIGEST_LENGTH 20
72  
73  typedef struct SHAstate_st {
74  	u_int32_t h0, h1, h2, h3, h4;
75  	u_int32_t Nl, Nh;
76  	u_int32_t data[SHA_LBLOCK];
77  	int num;
78  } SHA_CTX;
79  #define	SHA1_CTX	SHA_CTX
80  
81  __BEGIN_DECLS
82  void	SHA_Init(SHA_CTX *c);
83  void	SHA_Update(SHA_CTX *c, const void *data, size_t len);
84  void	SHA_Final(unsigned char *md, SHA_CTX *c);
85  char   *SHA_End(SHA_CTX *, char *);
86  char   *SHA_File(const char *, char *);
87  char   *SHA_FileChunk(const char *, char *, off_t, off_t);
88  char   *SHA_Data(const void *, unsigned int, char *);
89  void	SHA1_Init(SHA_CTX *c);
90  void	SHA1_Update(SHA_CTX *c, const void *data, size_t len);
91  void	SHA1_Final(unsigned char *md, SHA_CTX *c);
92  char   *SHA1_End(SHA_CTX *, char *);
93  char   *SHA1_File(const char *, char *);
94  char   *SHA1_FileChunk(const char *, char *, off_t, off_t);
95  char   *SHA1_Data(const void *, unsigned int, char *);
96  __END_DECLS
97  
98  #endif /* !_SHA_H_ */
99