text: /* crypto/md4/md4_dgst.c */
  /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   * All rights reserved.
   *
   * This package is an SSL implementation written
   * by Eric Young (eay@cryptsoft.com).
   * The implementation was written so as to conform with Netscapes SSL.
   *
   * This library is free for commercial and non-commercial use as long as
   * the following conditions are aheared to.  The following conditions
   * apply to all code found in this distribution, be it the RC4, RSA,
   * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
   * included with this distribution is covered by the same copyright terms
   * except that the holder is Tim Hudson (tjh@cryptsoft.com).
   *
   * Copyright remains Eric Young's, and as such any Copyright notices in
   * the code are not to be removed.
   * If this package is used in a product, Eric Young should be given attribution
   * as the author of the parts of the library used.
   * This can be in the form of a textual message at program startup or
   * in documentation (online or textual) provided with the package.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *    "This product includes cryptographic software written by
   *     Eric Young (eay@cryptsoft.com)"
   *    The word 'cryptographic' can be left out if the rouines from the library
   *    being used are not cryptographic related :-).
   * 4. If you include any Windows specific code (or a derivative thereof) from
   *    the apps directory (application code) you must include an acknowledgement:
   *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
   *
   * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * The licence and distribution terms for any publically available version or
   * derivative of this code cannot be changed.  i.e. this code cannot simply be
   * copied and put under another distribution licence
   * [including the GNU Public Licence.]
   */
  
  #include <stdio.h>
  #include <openssl/opensslv.h>
  #include <openssl/crypto.h>
  #include "md4_locl.h"
  
  const char MD4_version[] = "MD4" OPENSSL_VERSION_PTEXT;
  
  /*
   * Implemented from RFC1186 The MD4 Message-Digest Algorithm
   */
  
  #define INIT_DATA_A (unsigned long)0x67452301L
  #define INIT_DATA_B (unsigned long)0xefcdab89L
  #define INIT_DATA_C (unsigned long)0x98badcfeL
  #define INIT_DATA_D (unsigned long)0x10325476L
  
  fips_md_init(MD4)
  {
      memset(c, 0, sizeof(*c));
      c->A = INIT_DATA_A;
      c->B = INIT_DATA_B;
      c->C = INIT_DATA_C;
      c->D = INIT_DATA_D;
      return 1;
  }
  
  #ifndef md4_block_data_order
  # ifdef X
  #  undef X
  # endif
  void md4_block_data_order(MD4_CTX *c, const void *data_, size_t num)
  {
      const unsigned char *data = data_;
      unsigned MD32_REG_T A, B, C, D, l;
  # ifndef MD32_XARRAY
      /* See comment in crypto/sha/sha_locl.h for details. */
      unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
          XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15;
  #  define X(i)   XX##i
  # else
      MD4_LONG XX[MD4_LBLOCK];
  #  define X(i)   XX[i]
  # endif
  
      A = c->A;
      B = c->B;
      C = c->C;
      D = c->D;
  
      for (; num--;) {
          (void)HOST_c2l(data, l);
          X(0) = l;
          (void)HOST_c2l(data, l);
          X(1) = l;
          /* Round 0 */
          R0(A, B, C, D, X(0), 3, 0);
          (void)HOST_c2l(data, l);
          X(2) = l;
          R0(D, A, B, C, X(1), 7, 0);
          (void)HOST_c2l(data, l);
          X(3) = l;
          R0(C, D, A, B, X(2), 11, 0);
          (void)HOST_c2l(data, l);
          X(4) = l;
          R0(B, C, D, A, X(3), 19, 0);
          (void)HOST_c2l(data, l);
          X(5) = l;
          R0(A, B, C, D, X(4), 3, 0);
          (void)HOST_c2l(data, l);
          X(6) = l;
          R0(D, A, B, C, X(5), 7, 0);
          (void)HOST_c2l(data, l);
          X(7) = l;
          R0(C, D, A, B, X(6), 11, 0);
          (void)HOST_c2l(data, l);
          X(8) = l;
          R0(B, C, D, A, X(7), 19, 0);
          (void)HOST_c2l(data, l);
          X(9) = l;
          R0(A, B, C, D, X(8), 3, 0);
          (void)HOST_c2l(data, l);
          X(10) = l;
          R0(D, A, B, C, X(9), 7, 0);
          (void)HOST_c2l(data, l);
          X(11) = l;
          R0(C, D, A, B, X(10), 11, 0);
          (void)HOST_c2l(data, l);
          X(12) = l;
          R0(B, C, D, A, X(11), 19, 0);
          (void)HOST_c2l(data, l);
          X(13) = l;
          R0(A, B, C, D, X(12), 3, 0);
          (void)HOST_c2l(data, l);
          X(14) = l;
          R0(D, A, B, C, X(13), 7, 0);
          (void)HOST_c2l(data, l);
          X(15) = l;
          R0(C, D, A, B, X(14), 11, 0);
          R0(B, C, D, A, X(15), 19, 0);
          /* Round 1 */
          R1(A, B, C, D, X(0), 3, 0x5A827999L);
          R1(D, A, B, C, X(4), 5, 0x5A827999L);
          R1(C, D, A, B, X(8), 9, 0x5A827999L);
          R1(B, C, D, A, X(12), 13, 0x5A827999L);
          R1(A, B, C, D, X(1), 3, 0x5A827999L);
          R1(D, A, B, C, X(5), 5, 0x5A827999L);
          R1(C, D, A, B, X(9), 9, 0x5A827999L);
          R1(B, C, D, A, X(13), 13, 0x5A827999L);
          R1(A, B, C, D, X(2), 3, 0x5A827999L);
          R1(D, A, B, C, X(6), 5, 0x5A827999L);
          R1(C, D, A, B, X(10), 9, 0x5A827999L);
          R1(B, C, D, A, X(14), 13, 0x5A827999L);
          R1(A, B, C, D, X(3), 3, 0x5A827999L);
          R1(D, A, B, C, X(7), 5, 0x5A827999L);
          R1(C, D, A, B, X(11), 9, 0x5A827999L);
          R1(B, C, D, A, X(15), 13, 0x5A827999L);
          /* Round 2 */
          R2(A, B, C, D, X(0), 3, 0x6ED9EBA1L);
          R2(D, A, B, C, X(8), 9, 0x6ED9EBA1L);
          R2(C, D, A, B, X(4), 11, 0x6ED9EBA1L);
          R2(B, C, D, A, X(12), 15, 0x6ED9EBA1L);
          R2(A, B, C, D, X(2), 3, 0x6ED9EBA1L);
          R2(D, A, B, C, X(10), 9, 0x6ED9EBA1L);
          R2(C, D, A, B, X(6), 11, 0x6ED9EBA1L);
          R2(B, C, D, A, X(14), 15, 0x6ED9EBA1L);
          R2(A, B, C, D, X(1), 3, 0x6ED9EBA1L);
          R2(D, A, B, C, X(9), 9, 0x6ED9EBA1L);
          R2(C, D, A, B, X(5), 11, 0x6ED9EBA1L);
          R2(B, C, D, A, X(13), 15, 0x6ED9EBA1L);
          R2(A, B, C, D, X(3), 3, 0x6ED9EBA1L);
          R2(D, A, B, C, X(11), 9, 0x6ED9EBA1L);
          R2(C, D, A, B, X(7), 11, 0x6ED9EBA1L);
          R2(B, C, D, A, X(15), 15, 0x6ED9EBA1L);
  
          A = c->A += A;
          B = c->B += B;
          C = c->C += C;
          D = c->D += D;
      }
  }
  #endif
  