sha.h 7.0 KB

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  1. /* $OpenBSD: sha.h,v 1.22 2023/07/08 07:08:11 jsing Exp $ */
  2. /* Copyright (C) 1995-1998 Eric Young ([email protected])
  3. * All rights reserved.
  4. *
  5. * This package is an SSL implementation written
  6. * by Eric Young ([email protected]).
  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 ([email protected]).
  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 ([email protected])"
  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 ([email protected])"
  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. #include <stddef.h>
  59. #ifndef HEADER_SHA_H
  60. #define HEADER_SHA_H
  61. #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__OpenBSD__)
  62. #define __bounded__(x, y, z)
  63. #endif
  64. #include <openssl/opensslconf.h>
  65. #ifdef __cplusplus
  66. extern "C" {
  67. #endif
  68. #if defined(OPENSSL_NO_SHA) || defined(OPENSSL_NO_SHA1)
  69. #error SHA is disabled.
  70. #endif
  71. /*
  72. * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  73. * ! SHA_LONG has to be at least 32 bits wide. !
  74. * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  75. */
  76. #define SHA_LONG unsigned int
  77. #define SHA_LBLOCK 16
  78. #define SHA_CBLOCK (SHA_LBLOCK*4) /* SHA treats input data as a
  79. * contiguous array of 32 bit
  80. * wide big-endian values. */
  81. #define SHA_LAST_BLOCK (SHA_CBLOCK-8)
  82. #define SHA_DIGEST_LENGTH 20
  83. typedef struct SHAstate_st {
  84. SHA_LONG h0, h1, h2, h3, h4;
  85. SHA_LONG Nl, Nh;
  86. SHA_LONG data[SHA_LBLOCK];
  87. unsigned int num;
  88. } SHA_CTX;
  89. #ifndef OPENSSL_NO_SHA1
  90. int SHA1_Init(SHA_CTX *c);
  91. int SHA1_Update(SHA_CTX *c, const void *data, size_t len)
  92. __attribute__ ((__bounded__(__buffer__, 2, 3)));
  93. int SHA1_Final(unsigned char *md, SHA_CTX *c);
  94. unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md)
  95. __attribute__ ((__bounded__(__buffer__, 1, 2)));
  96. void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
  97. #endif
  98. #define SHA256_CBLOCK (SHA_LBLOCK*4) /* SHA-256 treats input data as a
  99. * contiguous array of 32 bit
  100. * wide big-endian values. */
  101. #define SHA224_DIGEST_LENGTH 28
  102. #define SHA256_DIGEST_LENGTH 32
  103. typedef struct SHA256state_st {
  104. SHA_LONG h[8];
  105. SHA_LONG Nl, Nh;
  106. SHA_LONG data[SHA_LBLOCK];
  107. unsigned int num, md_len;
  108. } SHA256_CTX;
  109. #ifndef OPENSSL_NO_SHA256
  110. int SHA224_Init(SHA256_CTX *c);
  111. int SHA224_Update(SHA256_CTX *c, const void *data, size_t len)
  112. __attribute__ ((__bounded__(__buffer__, 2, 3)));
  113. int SHA224_Final(unsigned char *md, SHA256_CTX *c);
  114. unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md)
  115. __attribute__ ((__bounded__(__buffer__, 1, 2)));
  116. int SHA256_Init(SHA256_CTX *c);
  117. int SHA256_Update(SHA256_CTX *c, const void *data, size_t len)
  118. __attribute__ ((__bounded__(__buffer__, 2, 3)));
  119. int SHA256_Final(unsigned char *md, SHA256_CTX *c);
  120. unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md)
  121. __attribute__ ((__bounded__(__buffer__, 1, 2)));
  122. void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
  123. #endif
  124. #define SHA384_DIGEST_LENGTH 48
  125. #define SHA512_DIGEST_LENGTH 64
  126. #ifndef OPENSSL_NO_SHA512
  127. /*
  128. * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
  129. * being exactly 64-bit wide. See Implementation Notes in sha512.c
  130. * for further details.
  131. */
  132. #define SHA512_CBLOCK (SHA_LBLOCK*8) /* SHA-512 treats input data as a
  133. * contiguous array of 64 bit
  134. * wide big-endian values. */
  135. #if defined(_LP64)
  136. #define SHA_LONG64 unsigned long
  137. #define U64(C) C##UL
  138. #else
  139. #define SHA_LONG64 unsigned long long
  140. #define U64(C) C##ULL
  141. #endif
  142. typedef struct SHA512state_st {
  143. SHA_LONG64 h[8];
  144. SHA_LONG64 Nl, Nh;
  145. union {
  146. SHA_LONG64 d[SHA_LBLOCK];
  147. unsigned char p[SHA512_CBLOCK];
  148. } u;
  149. unsigned int num, md_len;
  150. } SHA512_CTX;
  151. #endif
  152. #ifndef OPENSSL_NO_SHA512
  153. int SHA384_Init(SHA512_CTX *c);
  154. int SHA384_Update(SHA512_CTX *c, const void *data, size_t len)
  155. __attribute__ ((__bounded__(__buffer__, 2, 3)));
  156. int SHA384_Final(unsigned char *md, SHA512_CTX *c);
  157. unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md)
  158. __attribute__ ((__bounded__(__buffer__, 1, 2)));
  159. int SHA512_Init(SHA512_CTX *c);
  160. int SHA512_Update(SHA512_CTX *c, const void *data, size_t len)
  161. __attribute__ ((__bounded__(__buffer__, 2, 3)));
  162. int SHA512_Final(unsigned char *md, SHA512_CTX *c);
  163. unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md)
  164. __attribute__ ((__bounded__(__buffer__, 1, 2)));
  165. void SHA512_Transform(SHA512_CTX *c, const unsigned char *data);
  166. #endif
  167. #ifdef __cplusplus
  168. }
  169. #endif
  170. #endif