include/sys/sha1.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #ifndef _SYS_SHA1_H
  27 #define _SYS_SHA1_H
  28
  29 #include <sys/types.h>          /* for uint_* */
  30
  31 #ifdef  __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /*
  36  * NOTE: n2rng (Niagara2 RNG driver) accesses the state field of
  37  * SHA1_CTX directly.  NEVER change this structure without verifying
  38  * compatiblity with n2rng.  The important thing is that the state
  39  * must be in a field declared as uint32_t state[5].
  40  */
  41 /* SHA-1 context. */
  42 typedef struct {
  43         uint32_t state[5];      /* state (ABCDE) */
  44         uint32_t count[2];      /* number of bits, modulo 2^64 (msb first) */
  45         union {
  46                 uint8_t         buf8[64];       /* undigested input */
  47                 uint32_t        buf32[16];      /* realigned input */
  48         } buf_un;
  49 } SHA1_CTX;
  50
  51 #define SHA1_DIGEST_LENGTH 20
  52
  53 void SHA1Init(SHA1_CTX *);
  54 void SHA1Update(SHA1_CTX *, const void *, size_t);
  55 void SHA1Final(void *, SHA1_CTX *);
  56
  57 #ifdef  __cplusplus
  58 }
  59 #endif
  60
  61 #endif /* _SYS_SHA1_H */