release/src-rt-6.x.4708/include/bcmcrypto/md4.h

   1 /*
   2  * Copyright (C) 2012, Broadcom Corporation. All Rights Reserved.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  *
  16  * $Id: md4.h 241182 2011-02-17 21:50:03Z $
  17  */
  18
  19 #ifndef _MD4_H_
  20 #define _MD4_H_
  21
  22 /*
  23  * md4.h, copied from src/router/ppp/pppd to src/include/bcmcrypto for general use
  24  *
  25  * $Id: md4.h 241182 2011-02-17 21:50:03Z $
  26  *
  27 ** ********************************************************************
  28 ** md4.h -- Header file for implementation of                        **
  29 ** MD4 Message Digest Algorithm                                      **
  30 ** Updated: 2/13/90 by Ronald L. Rivest                              **
  31 ** (C) 1990 RSA Data Security, Inc.                                  **
  32 ** ********************************************************************
  33 */
  34
  35 #ifndef __P
  36 # if defined(__STDC__) || defined(__GNUC__)
  37 #  define __P(x) x
  38 # else
  39 #  define __P(x) ()
  40 # endif
  41 #endif  /* !__P */
  42
  43
  44 /* MDstruct is the data structure for a message digest computation.
  45 */
  46 typedef struct {
  47         unsigned int buffer[4]; /* Holds 4-word result of MD computation */
  48         unsigned char count[8]; /* Number of bits processed so far */
  49         unsigned int done;      /* Nonzero means MD computation finished */
  50 } MD4_CTX;
  51
  52 /* MD4Init(MD4_CTX *)
  53 ** Initialize the MD4_CTX prepatory to doing a message digest
  54 ** computation.
  55 */
  56 extern void BCMROMFN(MD4Init) __P((MD4_CTX *MD));
  57
  58 /* MD4Update(MD,X,count)
  59 ** Input: X -- a pointer to an array of unsigned characters.
  60 **        count -- the number of bits of X to use (an unsigned int).
  61 ** Updates MD using the first "count" bits of X.
  62 ** The array pointed to by X is not modified.
  63 ** If count is not a multiple of 8, MD4Update uses high bits of
  64 ** last byte.
  65 ** This is the basic input routine for a user.
  66 ** The routine terminates the MD computation when count < 512, so
  67 ** every MD computation should end with one call to MD4Update with a
  68 ** count less than 512.  Zero is OK for a count.
  69 */
  70 extern void BCMROMFN(MD4Update) __P((MD4_CTX *MD, unsigned char *X, unsigned int count));
  71
  72 /* MD4Print(MD)
  73 ** Prints message digest buffer MD as 32 hexadecimal digits.
  74 ** Order is from low-order byte of buffer[0] to high-order byte
  75 ** of buffer[3].
  76 ** Each byte is printed with high-order hexadecimal digit first.
  77 */
  78 extern void MD4Print __P((MD4_CTX *));
  79
  80 /* MD4Final(buf, MD)
  81 ** Returns message digest from MD and terminates the message
  82 ** digest computation.
  83 */
  84 extern void BCMROMFN(MD4Final) __P((unsigned char *, MD4_CTX *));
  85
  86 /*
  87 ** End of md4.h
  88 */
  89
  90 #endif /* _MD4_H_ */