cups/md5-private.h

   1 /*
   2  * "$Id$"
   3  *
   4  *   Private MD5 definitions for CUPS.
   5  *
   6  *   Copyright 2007-2010 by Apple Inc.
   7  *   Copyright 2005 by Easy Software Products
   8  *
   9  *   Copyright (C) 1999 Aladdin Enterprises.  All rights reserved.
  10  *
  11  *   This software is provided 'as-is', without any express or implied
  12  *   warranty.  In no event will the authors be held liable for any damages
  13  *   arising from the use of this software.
  14  *
  15  *   Permission is granted to anyone to use this software for any purpose,
  16  *   including commercial applications, and to alter it and redistribute it
  17  *   freely, subject to the following restrictions:
  18  *
  19  *   1. The origin of this software must not be misrepresented; you must not
  20  *      claim that you wrote the original software. If you use this software
  21  *      in a product, an acknowledgment in the product documentation would be
  22  *      appreciated but is not required.
  23  *   2. Altered source versions must be plainly marked as such, and must not be
  24  *      misrepresented as being the original software.
  25  *   3. This notice may not be removed or altered from any source distribution.
  26  *
  27  *   L. Peter Deutsch
  28  *   ghost@aladdin.com
  29  */
  30
  31 /*
  32   Independent implementation of MD5 (RFC 1321).
  33
  34   This code implements the MD5 Algorithm defined in RFC 1321.
  35   It is derived directly from the text of the RFC and not from the
  36   reference implementation.
  37
  38   The original and principal author of md5.h is L. Peter Deutsch
  39   <ghost@aladdin.com>.  Other authors are noted in the change history
  40   that follows (in reverse chronological order):
  41
  42   1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
  43   1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
  44         added conditionalization for C++ compilation from Martin
  45         Purschke <purschke@bnl.gov>.
  46   1999-05-03 lpd Original version.
  47  */
  48
  49 #ifndef _CUPS_MD5_PRIVATE_H_
  50 #  define _CUPS_MD5_PRIVATE_H_
  51
  52 /* Define the state of the MD5 Algorithm. */
  53 typedef struct _cups_md5_state_s {
  54     unsigned int count[2];              /* message length in bits, lsw first */
  55     unsigned int abcd[4];               /* digest buffer */
  56     unsigned char buf[64];              /* accumulate block */
  57 } _cups_md5_state_t;
  58
  59 #  ifdef __cplusplus
  60 extern "C" {
  61 #  endif /* __cplusplus */
  62
  63 /* Initialize the algorithm. */
  64 void _cupsMD5Init(_cups_md5_state_t *pms);
  65
  66 /* Append a string to the message. */
  67 void _cupsMD5Append(_cups_md5_state_t *pms, const unsigned char *data, int nbytes);
  68
  69 /* Finish the message and return the digest. */
  70 void _cupsMD5Finish(_cups_md5_state_t *pms, unsigned char digest[16]);
  71
  72 #  ifdef __cplusplus
  73 }  /* end extern "C" */
  74 #  endif /* __cplusplus */
  75 #endif /* !_CUPS_MD5_PRIVATE_H_ */
  76
  77 /*
  78  * End of "$Id$".
  79  */