greenplumn sha1 源码
greenplumn sha1 代码
文件路径：/contrib/pgcrypto/sha1.h
/* contrib/pgcrypto/sha1.h */
/* $KAME: sha1.h,v 1.4 2000/02/22 14:01:18 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* FIPS pub 180-1: Secure Hash Algorithm (SHA-1)
* based on: http://www.itl.nist.gov/fipspubs/fip180-1.htm
* implemented by Jun-ichiro itojun Itoh <itojun@itojun.org>
*/
#ifndef _NETINET6_SHA1_H_
#define _NETINET6_SHA1_H_
struct sha1_ctxt
{
union
{
uint8 b8[20];
uint32 b32[5];
} h;
union
{
uint8 b8[8];
uint64 b64[1];
} c;
union
{
uint8 b8[64];
uint32 b32[16];
} m;
uint8 count;
};
extern void sha1_init(struct sha1_ctxt *);
extern void sha1_pad(struct sha1_ctxt *);
extern void sha1_loop(struct sha1_ctxt *, const uint8 *, size_t);
extern void sha1_result(struct sha1_ctxt *, uint8 *);
/* compatibility with other SHA1 source codes */
typedef struct sha1_ctxt SHA1_CTX;
#define SHA1Init(x) sha1_init((x))
#define SHA1Update(x, y, z) sha1_loop((x), (y), (z))
#define SHA1Final(x, y) sha1_result((y), (x))
#define SHA1_RESULTLEN (160/8)
#endif /* _NETINET6_SHA1_H_ */
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