sha1.h

00001 /*
00002  * The contents of this file are subject to the Mozilla Public
00003  * License Version 1.1 (the "License"); you may not use this file
00004  * except in compliance with the License. You may obtain a copy of
00005  * the License at http://www.mozilla.org/MPL/
00006  *
00007  * Software distributed under the License is distributed on an "AS
00008  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
00009  * implied. See the License for the specific language governing
00010  * rights and limitations under the License.
00011  *
00012  * The Original Code is SHA 180-1 Header File
00013  *
00014  * The Initial Developer of the Original Code is Paul Kocher of
00015  * Cryptography Research.  Portions created by Paul Kocher are
00016  * Copyright (C) 1995-9 by Cryptography Research, Inc.  All
00017  * Rights Reserved.
00018  *
00019  * Contributor(s):
00020  *
00021  *     Paul Kocher
00022  *
00023  * Alternatively, the contents of this file may be used under the
00024  * terms of the GNU General Public License Version 2 or later (the
00025  * "GPL"), in which case the provisions of the GPL are applicable
00026  * instead of those above.  If you wish to allow use of your
00027  * version of this file only under the terms of the GPL and not to
00028  * allow others to use your version of this file under the MPL,
00029  * indicate your decision by deleting the provisions above and
00030  * replace them with the notice and other provisions required by
00031  * the GPL.  If you do not delete the provisions above, a recipient
00032  * may use your version of this file under either the MPL or the
00033  * GPL.
00034  */
00035 
00036 /*
00037 Copied from the git sources, with the following revision history:
00038 commit 77ab8798d3f8df39877235be17bb6e70077aaba2
00039 Author: Junio C Hamano <junkio@cox.net>
00040 Date:   Tue Nov 1 10:56:03 2005 -0800
00041 
00042     Fix constness of input in mozilla-sha1/sha1.c::SHA1_Update().
00043 
00044     Among the three of our own implementations, only this one lacked
00045     "const" from the second argument.
00046 
00047     Signed-off-by: Junio C Hamano <junkio@cox.net>
00048 
00049 commit cef661fc799a3a13ffdea4a3f69f1acd295de53d
00050 Author: Linus Torvalds <torvalds@ppc970.osdl.org>
00051 Date:   Thu Apr 21 12:33:22 2005 -0700
00052 
00053     Add support for alternate SHA1 library implementations.
00054 
00055     This one includes the Mozilla SHA1 implementation sent in by Edgar Toernig.
00056     It's dual-licenced under MPL-1.1 or GPL, so in the context of git, we
00057     obviously use the GPL version.
00058 
00059     Side note: the Mozilla SHA1 implementation is about twice as fast as the
00060     default openssl one on my G5, but the default openssl one has optimized
00061     x86 assembly language on x86. So choose wisely.
00062 
00063 */
00064 
00065 #ifndef __BARRY_SHA1_H__
00066 #define __BARRY_SHA1_H__
00067 
00068 #include "dll.h"
00069 
00070 #define SHA_DIGEST_LENGTH 20
00071 
00072 namespace Barry {
00073 
00074 struct BXEXPORT SHA_CTX {
00075   unsigned int H[5];
00076   unsigned int W[80];
00077   int lenW;
00078   unsigned int sizeHi,sizeLo;
00079 };
00080 
00081 BXEXPORT void SHA1(const void *dataIn, int len, unsigned char *hashout);
00082 BXEXPORT void SHA1_Init(SHA_CTX *ctx);
00083 BXEXPORT void SHA1_Update(SHA_CTX *ctx, const void *dataIn, int len);
00084 BXEXPORT void SHA1_Final(unsigned char hashout[20], SHA_CTX *ctx);
00085 
00086 }
00087 
00088 #endif
00089