sha2.h 3.9 KB

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  1. /*
  2. * FIPS 180-2 SHA-224/256/384/512 implementation
  3. * Last update: 02/02/2007
  4. * Issue date: 04/30/2005
  5. *
  6. * Since this code has been incorporated into a GPLv2 project, it is
  7. * distributed under GPLv2 inside mmc-utils. The original BSD license
  8. * that the code was released under is included below for clarity.
  9. *
  10. * Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch>
  11. * All rights reserved.
  12. *
  13. * Redistribution and use in source and binary forms, with or without
  14. * modification, are permitted provided that the following conditions
  15. * are met:
  16. * 1. Redistributions of source code must retain the above copyright
  17. * notice, this list of conditions and the following disclaimer.
  18. * 2. Redistributions in binary form must reproduce the above copyright
  19. * notice, this list of conditions and the following disclaimer in the
  20. * documentation and/or other materials provided with the distribution.
  21. * 3. Neither the name of the project nor the names of its contributors
  22. * may be used to endorse or promote products derived from this software
  23. * without specific prior written permission.
  24. *
  25. * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  26. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28. * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  29. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35. * SUCH DAMAGE.
  36. */
  37. #ifndef SHA2_H
  38. #define SHA2_H
  39. #define SHA224_DIGEST_SIZE ( 224 / 8)
  40. #define SHA256_DIGEST_SIZE ( 256 / 8)
  41. #define SHA384_DIGEST_SIZE ( 384 / 8)
  42. #define SHA512_DIGEST_SIZE ( 512 / 8)
  43. #define SHA256_BLOCK_SIZE ( 512 / 8)
  44. #define SHA512_BLOCK_SIZE (1024 / 8)
  45. #define SHA384_BLOCK_SIZE SHA512_BLOCK_SIZE
  46. #define SHA224_BLOCK_SIZE SHA256_BLOCK_SIZE
  47. #ifndef SHA2_TYPES
  48. #define SHA2_TYPES
  49. typedef unsigned char uint8;
  50. typedef unsigned int uint32;
  51. typedef unsigned long long uint64;
  52. #endif
  53. #ifdef __cplusplus
  54. extern "C" {
  55. #endif
  56. typedef struct {
  57. unsigned int tot_len;
  58. unsigned int len;
  59. unsigned char block[2 * SHA256_BLOCK_SIZE];
  60. uint32 h[8];
  61. } sha256_ctx;
  62. typedef struct {
  63. unsigned int tot_len;
  64. unsigned int len;
  65. unsigned char block[2 * SHA512_BLOCK_SIZE];
  66. uint64 h[8];
  67. } sha512_ctx;
  68. typedef sha512_ctx sha384_ctx;
  69. typedef sha256_ctx sha224_ctx;
  70. void sha224_init(sha224_ctx *ctx);
  71. void sha224_update(sha224_ctx *ctx, const unsigned char *message,
  72. unsigned int len);
  73. void sha224_final(sha224_ctx *ctx, unsigned char *digest);
  74. void sha224(const unsigned char *message, unsigned int len,
  75. unsigned char *digest);
  76. void sha256_init(sha256_ctx * ctx);
  77. void sha256_update(sha256_ctx *ctx, const unsigned char *message,
  78. unsigned int len);
  79. void sha256_final(sha256_ctx *ctx, unsigned char *digest);
  80. void sha256(const unsigned char *message, unsigned int len,
  81. unsigned char *digest);
  82. void sha384_init(sha384_ctx *ctx);
  83. void sha384_update(sha384_ctx *ctx, const unsigned char *message,
  84. unsigned int len);
  85. void sha384_final(sha384_ctx *ctx, unsigned char *digest);
  86. void sha384(const unsigned char *message, unsigned int len,
  87. unsigned char *digest);
  88. void sha512_init(sha512_ctx *ctx);
  89. void sha512_update(sha512_ctx *ctx, const unsigned char *message,
  90. unsigned int len);
  91. void sha512_final(sha512_ctx *ctx, unsigned char *digest);
  92. void sha512(const unsigned char *message, unsigned int len,
  93. unsigned char *digest);
  94. #ifdef __cplusplus
  95. }
  96. #endif
  97. #endif /* !SHA2_H */