libkern/libkern/crypto/sha1.h

   1 /*
   2  * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _CRYPTO_SHA1_H_
  30 #define _CRYPTO_SHA1_H_
  31
  32 #ifdef  __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #define SHA_DIGEST_LENGTH       20
  37 #define SHA1_RESULTLEN          SHA_DIGEST_LENGTH
  38
  39 typedef struct sha1_ctxt {
  40         union {
  41                 u_int8_t        b8[20];
  42                 u_int32_t       b32[5]; /* state (ABCDE) */
  43         } h;
  44         union {
  45                 u_int8_t        b8[8];
  46                 u_int32_t       b32[2];
  47                 u_int64_t       b64[1]; /* # of bits, modulo 2^64 (msb first) */
  48         } c;
  49         union {
  50                 u_int8_t        b8[64];
  51                 u_int32_t       b32[16]; /* input buffer */
  52         } m;
  53         u_int8_t        count;          /* unused; for compatibility only */
  54 } SHA1_CTX;
  55
  56 /* For compatibility with the other SHA-1 implementation. */
  57 #define sha1_init(c)            SHA1Init(c)
  58 #define sha1_loop(c, b, l)      SHA1Update(c, b, l)
  59 #define sha1_result(c, b)       SHA1Final(b, c)
  60
  61 extern void SHA1Init(SHA1_CTX *);
  62 extern void SHA1Update(SHA1_CTX *, const void *, size_t);
  63 extern void SHA1Final(void *, SHA1_CTX *);
  64
  65 #ifdef  __cplusplus
  66 }
  67 #endif
  68
  69 #endif /*_CRYPTO_SHA1_H_*/