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Diffstat (limited to 'src/md5.h')
-rw-r--r-- | src/md5.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/md5.h b/src/md5.h new file mode 100644 index 0000000..0193f5d --- /dev/null +++ b/src/md5.h @@ -0,0 +1,94 @@ +/* + Copyright (C) 1999 Aladdin Enterprises. All rights reserved. + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + L. Peter Deutsch + ghost@aladdin.com + + */ +/*$Id: md5.h $ */ +/* + Independent implementation of MD5 (RFC 1321). + + This code implements the MD5 Algorithm defined in RFC 1321. + It is derived directly from the text of the RFC and not from the + reference implementation. + + The original and principal author of md5.h is L. Peter Deutsch + <ghost@aladdin.com>. Other authors are noted in the change history + that follows (in reverse chronological order): + + 1999-11-04 lpd Edited comments slightly for automatic TOC extraction. + 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5); + added conditionalization for C++ compilation from Martin + Purschke <purschke@bnl.gov>. + 1999-05-03 lpd Original version. + */ + +#ifndef md5_INCLUDED +# define md5_INCLUDED + +/* + * This code has some adaptations for the Ghostscript environment, but it + * will compile and run correctly in any environment with 8-bit chars and + * 32-bit ints. Specifically, it assumes that if the following are + * defined, they have the same meaning as in Ghostscript: P1, P2, P3, + * ARCH_IS_BIG_ENDIAN. + */ + +typedef unsigned char md5_byte_t; /* 8-bit byte */ +typedef unsigned int md5_word_t; /* 32-bit word */ + +/* Define the state of the MD5 Algorithm. */ +typedef struct md5_state_s { + md5_word_t count[2]; /* message length in bits, lsw first */ + md5_word_t abcd[4]; /* digest buffer */ + md5_byte_t buf[64]; /* accumulate block */ +} md5_state_t; + +#ifdef __cplusplus +extern "C" +{ +#endif + +/* Initialize the algorithm. */ +#ifdef P1 +void md5_init(P1(md5_state_t *pms)); +#else +void md5_init(md5_state_t *pms); +#endif + +/* Append a string to the message. */ +#ifdef P3 +void md5_append(P3(md5_state_t *pms, const md5_byte_t *data, int nbytes)); +#else +void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes); +#endif + +/* Finish the message and return the digest. */ +#ifdef P2 +void md5_finish(P2(md5_state_t *pms, md5_byte_t digest[16])); +#else +void md5_finish(md5_state_t *pms, md5_byte_t digest[16]); +#endif + +#ifdef __cplusplus +} /* end extern "C" */ +#endif + +#endif /* md5_INCLUDED */ |