rand.h 4.7 KB

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  1. /* $OpenBSD: rand.h,v 1.24 2023/11/19 15:46:10 tb 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 <stdlib.h>
  59. #ifndef HEADER_RAND_H
  60. #define HEADER_RAND_H
  61. #include <openssl/opensslconf.h>
  62. #include <openssl/ossl_typ.h>
  63. #ifdef __cplusplus
  64. extern "C" {
  65. #endif
  66. /* Already defined in ossl_typ.h */
  67. /* typedef struct rand_meth_st RAND_METHOD; */
  68. struct rand_meth_st {
  69. void (*seed)(const void *buf, int num);
  70. int (*bytes)(unsigned char *buf, int num);
  71. void (*cleanup)(void);
  72. void (*add)(const void *buf, int num, double entropy);
  73. int (*pseudorand)(unsigned char *buf, int num);
  74. int (*status)(void);
  75. };
  76. int RAND_set_rand_method(const RAND_METHOD *meth);
  77. const RAND_METHOD *RAND_get_rand_method(void);
  78. RAND_METHOD *RAND_SSLeay(void);
  79. #ifndef LIBRESSL_INTERNAL
  80. void RAND_cleanup(void );
  81. int RAND_bytes(unsigned char *buf, int num);
  82. int RAND_pseudo_bytes(unsigned char *buf, int num);
  83. void RAND_seed(const void *buf, int num);
  84. void RAND_add(const void *buf, int num, double entropy);
  85. int RAND_load_file(const char *file, long max_bytes);
  86. int RAND_write_file(const char *file);
  87. const char *RAND_file_name(char *file, size_t num);
  88. int RAND_status(void);
  89. int RAND_poll(void);
  90. #endif
  91. void ERR_load_RAND_strings(void);
  92. /* Error codes for the RAND functions. (no longer used) */
  93. /* Function codes. */
  94. #define RAND_F_RAND_GET_RAND_METHOD 101
  95. #define RAND_F_RAND_INIT_FIPS 102
  96. #define RAND_F_SSLEAY_RAND_BYTES 100
  97. /* Reason codes. */
  98. #define RAND_R_DUAL_EC_DRBG_DISABLED 104
  99. #define RAND_R_ERROR_INITIALISING_DRBG 102
  100. #define RAND_R_ERROR_INSTANTIATING_DRBG 103
  101. #define RAND_R_NO_FIPS_RANDOM_METHOD_SET 101
  102. #define RAND_R_PRNG_NOT_SEEDED 100
  103. #ifdef __cplusplus
  104. }
  105. #endif
  106. #endif