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md4.h 4.5 KB

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  1. /* crypto/md4/md4.h */
  2. /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  3. * All rights reserved.
  4. *
  5. * This package is an SSL implementation written
  6. * by Eric Young (eay@cryptsoft.com).
  7. * The implementation was written so as to conform with Netscapes SSL.
  8. *
  9. * This library is free for commercial and non-commercial use as long as
  10. * the following conditions are aheared to. The following conditions
  11. * apply to all code found in this distribution, be it the RC4, RSA,
  12. * lhash, DES, etc., code; not just the SSL code. The SSL documentation
  13. * included with this distribution is covered by the same copyright terms
  14. * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15. *
  16. * Copyright remains Eric Young's, and as such any Copyright notices in
  17. * the code are not to be removed.
  18. * If this package is used in a product, Eric Young should be given attribution
  19. * as the author of the parts of the library used.
  20. * This can be in the form of a textual message at program startup or
  21. * in documentation (online or textual) provided with the package.
  22. *
  23. * Redistribution and use in source and binary forms, with or without
  24. * modification, are permitted provided that the following conditions
  25. * are met:
  26. * 1. Redistributions of source code must retain the copyright
  27. * notice, this list of conditions and the following disclaimer.
  28. * 2. Redistributions in binary form must reproduce the above copyright
  29. * notice, this list of conditions and the following disclaimer in the
  30. * documentation and/or other materials provided with the distribution.
  31. * 3. All advertising materials mentioning features or use of this software
  32. * must display the following acknowledgement:
  33. * "This product includes cryptographic software written by
  34. * Eric Young (eay@cryptsoft.com)"
  35. * The word 'cryptographic' can be left out if the rouines from the library
  36. * being used are not cryptographic related :-).
  37. * 4. If you include any Windows specific code (or a derivative thereof) from
  38. * the apps directory (application code) you must include an acknowledgement:
  39. * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40. *
  41. * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44. * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51. * SUCH DAMAGE.
  52. *
  53. * The licence and distribution terms for any publically available version or
  54. * derivative of this code cannot be changed. i.e. this code cannot simply be
  55. * copied and put under another distribution licence
  56. * [including the GNU Public Licence.]
  57. */
  58. #ifndef HEADER_MD4_H
  59. #define HEADER_MD4_H
  60. #include <openssl/e_os2.h>
  61. #include <stddef.h>
  62. #ifdef __cplusplus
  63. extern "C" {
  64. #endif
  65. #ifdef OPENSSL_NO_MD4
  66. #error MD4 is disabled.
  67. #endif
  68. /*
  69. * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  70. * ! MD4_LONG has to be at least 32 bits wide. If it's wider, then !
  71. * ! MD4_LONG_LOG2 has to be defined along. !
  72. * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  73. */
  74. #if defined(__LP32__)
  75. #define MD4_LONG unsigned long
  76. #elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
  77. #define MD4_LONG unsigned long
  78. #define MD4_LONG_LOG2 3
  79. /*
  80. * _CRAY note. I could declare short, but I have no idea what impact
  81. * does it have on performance on none-T3E machines. I could declare
  82. * int, but at least on C90 sizeof(int) can be chosen at compile time.
  83. * So I've chosen long...
  84. * <appro@fy.chalmers.se>
  85. */
  86. #else
  87. #define MD4_LONG unsigned int
  88. #endif
  89. #define MD4_CBLOCK 64
  90. #define MD4_LBLOCK (MD4_CBLOCK/4)
  91. #define MD4_DIGEST_LENGTH 16
  92. typedef struct MD4state_st
  93. {
  94. MD4_LONG A,B,C,D;
  95. MD4_LONG Nl,Nh;
  96. MD4_LONG data[MD4_LBLOCK];
  97. unsigned int num;
  98. } MD4_CTX;
  99. int MD4_Init(MD4_CTX *c);
  100. int MD4_Update(MD4_CTX *c, const void *data, size_t len);
  101. int MD4_Final(unsigned char *md, MD4_CTX *c);
  102. unsigned char *MD4(const unsigned char *d, size_t n, unsigned char *md);
  103. void MD4_Transform(MD4_CTX *c, const unsigned char *b);
  104. #ifdef __cplusplus
  105. }
  106. #endif
  107. #endif