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36 Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved.
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59 Independent implementation of MD5 (RFC 1321).
61 This code implements the MD5 Algorithm defined in RFC 1321, whose
63 http://www.ietf.org/rfc/rfc1321.txt
64 The code is derived from the text of the RFC, including the test suite
65 (section A.5) but excluding the rest of Appendix A. It does not include
66 any code or documentation that is identified in the RFC as being
69 The original and principal author of md5.h is L. Peter Deutsch
70 <ghost@aladdin.com>. Other authors are noted in the change history
71 that follows (in reverse chronological order):
73 2002-04-13 lpd Removed support for non-ANSI compilers; removed
74 references to Ghostscript; clarified derivation from RFC 1321;
75 now handles byte order either statically or dynamically.
76 1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
77 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
78 added conditionalization for C++ compilation from Martin
79 Purschke <purschke@bnl.gov>.
80 1999-05-03 lpd Original version.
87 * This package supports both compile-time and run-time determination of CPU
88 * byte order. If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
89 * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
90 * defined as non-zero, the code will be compiled to run only on big-endian
91 * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
92 * run on either big- or little-endian CPUs, but will run slightly less
93 * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
96 typedef unsigned char md5_byte_t
; /* 8-bit byte */
97 typedef unsigned int md5_word_t
; /* 32-bit word */
99 /* Define the state of the MD5 Algorithm. */
100 typedef struct md5_state_s
{
101 md5_word_t count
[2]; /* message length in bits, lsw first */
102 md5_word_t abcd
[4]; /* digest buffer */
103 md5_byte_t buf
[64]; /* accumulate block */
111 /* Initialize the algorithm. */
112 void md5_init(md5_state_t
*pms
);
114 /* Append a string to the message. */
115 void md5_append(md5_state_t
*pms
, const md5_byte_t
*data
, int nbytes
);
117 /* Finish the message and return the digest. */
118 void md5_finish(md5_state_t
*pms
, md5_byte_t digest
[16]);
121 } /* end extern "C" */
124 #endif /* md5_INCLUDED */