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# md5.h

    00001 /*
    00002   Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
    00003
    00004   This software is provided 'as-is', without any express or implied
    00005   warranty.  In no event will the authors be held liable for any damages
    00006   arising from the use of this software.
    00007
    00008   Permission is granted to anyone to use this software for any purpose,
    00009   including commercial applications, and to alter it and redistribute it
    00010   freely, subject to the following restrictions:
    00011
    00012   1. The origin of this software must not be misrepresented; you must not
    00013      claim that you wrote the original software. If you use this software
    00014      in a product, an acknowledgment in the product documentation would be
    00015      appreciated but is not required.
    00016   2. Altered source versions must be plainly marked as such, and must not be
    00017      misrepresented as being the original software.
    00018   3. This notice may not be removed or altered from any source distribution.
    00019
    00020   L. Peter Deutsch
    00021   ghost@aladdin.com
    00022
    00023  */
    00024 /* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
    00025 /*
    00026   Independent implementation of MD5 (RFC 1321).
    00027
    00028   This code implements the MD5 Algorithm defined in RFC 1321, whose
    00029   text is available at
    00030         http://www.ietf.org/rfc/rfc1321.txt
    00031   The code is derived from the text of the RFC, including the test suite
    00032   (section A.5) but excluding the rest of Appendix A.  It does not include
    00033   any code or documentation that is identified in the RFC as being
    00034   copyrighted.
    00035
    00036   The original and principal author of md5.h is L. Peter Deutsch
    00037   <ghost@aladdin.com>.  Other authors are noted in the change history
    00038   that follows (in reverse chronological order):
    00039
    00040   2002-04-13 lpd Removed support for non-ANSI compilers; removed
    00041         references to Ghostscript; clarified derivation from RFC 1321;
    00042         now handles byte order either statically or dynamically.
    00043   1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
    00044   1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
    00045         added conditionalization for C++ compilation from Martin
    00046         Purschke <purschke@bnl.gov>.
    00047   1999-05-03 lpd Original version.
    00048  */
    00049
    00050 #ifndef md5_INCLUDED
    00051 #  define md5_INCLUDED
    00052
    00053 #include <string>
    00054 #include <boost/cstdint.hpp>
    00055 #include "StaticString.h"
    00056
    00057 /*
    00058  * This package supports both compile-time and run-time determination of CPU
    00059  * byte order.  If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
    00060  * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
    00061  * defined as non-zero, the code will be compiled to run only on big-endian
    00062  * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
    00063  * run on either big- or little-endian CPUs, but will run slightly less
    00064  * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
    00065  */
    00066
    00067 namespace Passenger {
    00068
    00069 typedef uint8_t md5_byte_t; /* 8-bit byte */
    00070 typedef uint32_t md5_word_t; /* 32-bit word */
    00071
    00072 /* Define the state of the MD5 Algorithm. */
    00073 typedef struct md5_state_s {
    00074     md5_word_t count[2];        /* message length in bits, lsw first */
    00075     md5_word_t abcd[4];         /* digest buffer */
    00076     md5_byte_t buf[64];         /* accumulate block */
    00077 } md5_state_t;
    00078
    00079 /* Initialize the algorithm. */
    00080 void md5_init(md5_state_t *pms);
    00081
    00082 /* Append a string to the message. */
    00083 void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
    00084
    00085 /* Finish the message and return the digest. */
    00086 void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
    00087
    00088 /* Convenience method for directly converting data into a hexadecimal MD5 string. */
    00089 std::string md5_hex(const StaticString &input);
    00090
    00091 } // namespace Passenger
    00092
    00093 #endif /* md5_INCLUDED */