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80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/*
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Copyright (C) 1999 Aladdin Enterprises. All rights reserved.
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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L. Peter Deutsch
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ghost@aladdin.com
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*/
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/*
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Independent implementation of MD5 (RFC 1321).
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This code implements the MD5 Algorithm defined in RFC 1321.
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It is derived directly from the text of the RFC and not from the
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reference implementation.
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The original and principal author of md5.h is L. Peter Deutsch
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<ghost@aladdin.com>. Other authors are noted in the change history
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that follows (in reverse chronological order):
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1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
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1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
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added conditionalization for C++ compilation from Martin
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Purschke <purschke@bnl.gov>.
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1999-05-03 lpd Original version.
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*/
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/* $OrigId: md5.h,v 1.2 2001/03/26 08:57:14 matz Exp $ */
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/* $RoughId: md5.h,v 1.3 2002/02/24 08:14:31 knu Exp $ */
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/* $Id$ */
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#ifndef MD5_INCLUDED
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# define MD5_INCLUDED
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#include "../defs.h"
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/*
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* This code has some adaptations for the Ghostscript environment, but it
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* will compile and run correctly in any environment with 8-bit chars and
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* 32-bit ints. Specifically, it assumes that if the following are
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* defined, they have the same meaning as in Ghostscript: P1, P2, P3.
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*/
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/* Define the state of the MD5 Algorithm. */
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typedef struct md5_state_s {
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uint32_t count[2]; /* message length in bits, lsw first */
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uint32_t state[4]; /* digest buffer */
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uint8_t buffer[64]; /* accumulate block */
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} MD5_CTX;
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#ifdef RUBY
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/* avoid name clash */
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#define MD5_Init rb_Digest_MD5_Init
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#define MD5_Update rb_Digest_MD5_Update
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#define MD5_Finish rb_Digest_MD5_Finish
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#endif
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int MD5_Init _((MD5_CTX *pms));
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void MD5_Update _((MD5_CTX *pms, const uint8_t *data, size_t nbytes));
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int MD5_Finish _((MD5_CTX *pms, uint8_t *digest));
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#define MD5_BLOCK_LENGTH 64
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#define MD5_DIGEST_LENGTH 16
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#define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH * 2 + 1)
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#endif /* MD5_INCLUDED */
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