1 /* crypto/rand/rand.h */
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2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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3 * All rights reserved.
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5 * This package is an SSL implementation written
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6 * by Eric Young (eay@cryptsoft.com).
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7 * The implementation was written so as to conform with Netscapes SSL.
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9 * This library is free for commercial and non-commercial use as long as
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10 * the following conditions are aheared to. The following conditions
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11 * apply to all code found in this distribution, be it the RC4, RSA,
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12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
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13 * included with this distribution is covered by the same copyright terms
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14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
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16 * Copyright remains Eric Young's, and as such any Copyright notices in
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17 * the code are not to be removed.
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18 * If this package is used in a product, Eric Young should be given attribution
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19 * as the author of the parts of the library used.
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20 * This can be in the form of a textual message at program startup or
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21 * in documentation (online or textual) provided with the package.
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23 * Redistribution and use in source and binary forms, with or without
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24 * modification, are permitted provided that the following conditions
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26 * 1. Redistributions of source code must retain the copyright
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27 * notice, this list of conditions and the following disclaimer.
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28 * 2. Redistributions in binary form must reproduce the above copyright
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29 * notice, this list of conditions and the following disclaimer in the
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30 * documentation and/or other materials provided with the distribution.
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31 * 3. All advertising materials mentioning features or use of this software
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32 * must display the following acknowledgement:
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33 * "This product includes cryptographic software written by
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34 * Eric Young (eay@cryptsoft.com)"
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35 * The word 'cryptographic' can be left out if the rouines from the library
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36 * being used are not cryptographic related :-).
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37 * 4. If you include any Windows specific code (or a derivative thereof) from
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38 * the apps directory (application code) you must include an acknowledgement:
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39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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53 * The licence and distribution terms for any publically available version or
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54 * derivative of this code cannot be changed. i.e. this code cannot simply be
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55 * copied and put under another distribution licence
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56 * [including the GNU Public Licence.]
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59 #ifndef HEADER_RAND_H
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60 # define HEADER_RAND_H
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62 # include <stdlib.h>
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63 # include <openssl/ossl_typ.h>
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64 # include <openssl/e_os2.h>
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66 # if defined(OPENSSL_SYS_WINDOWS)
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67 # include <windows.h>
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74 # if defined(OPENSSL_FIPS)
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75 # define FIPS_RAND_SIZE_T size_t
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78 /* Already defined in ossl_typ.h */
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79 /* typedef struct rand_meth_st RAND_METHOD; */
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81 struct rand_meth_st {
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82 void (*seed) (const void *buf, int num);
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83 int (*bytes) (unsigned char *buf, int num);
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84 void (*cleanup) (void);
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85 void (*add) (const void *buf, int num, double entropy);
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86 int (*pseudorand) (unsigned char *buf, int num);
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87 int (*status) (void);
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91 extern int rand_predictable;
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94 int RAND_set_rand_method(const RAND_METHOD *meth);
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95 const RAND_METHOD *RAND_get_rand_method(void);
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96 # ifndef OPENSSL_NO_ENGINE
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97 int RAND_set_rand_engine(ENGINE *engine);
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99 RAND_METHOD *RAND_SSLeay(void);
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100 void RAND_cleanup(void);
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101 int RAND_bytes(unsigned char *buf, int num);
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102 int RAND_pseudo_bytes(unsigned char *buf, int num);
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103 void RAND_seed(const void *buf, int num);
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104 void RAND_add(const void *buf, int num, double entropy);
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105 int RAND_load_file(const char *file, long max_bytes);
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106 int RAND_write_file(const char *file);
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107 const char *RAND_file_name(char *file, size_t num);
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108 int RAND_status(void);
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109 int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes);
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110 int RAND_egd(const char *path);
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111 int RAND_egd_bytes(const char *path, int bytes);
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112 int RAND_poll(void);
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114 # if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
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116 void RAND_screen(void);
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117 int RAND_event(UINT, WPARAM, LPARAM);
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121 # ifdef OPENSSL_FIPS
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122 void RAND_set_fips_drbg_type(int type, int flags);
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123 int RAND_init_fips(void);
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126 /* BEGIN ERROR CODES */
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128 * The following lines are auto generated by the script mkerr.pl. Any changes
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129 * made after this point may be overwritten when the script is next run.
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131 void ERR_load_RAND_strings(void);
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133 /* Error codes for the RAND functions. */
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135 /* Function codes. */
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136 # define RAND_F_RAND_GET_RAND_METHOD 101
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137 # define RAND_F_RAND_INIT_FIPS 102
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138 # define RAND_F_SSLEAY_RAND_BYTES 100
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140 /* Reason codes. */
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141 # define RAND_R_DUAL_EC_DRBG_DISABLED 104
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142 # define RAND_R_ERROR_INITIALISING_DRBG 102
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143 # define RAND_R_ERROR_INSTANTIATING_DRBG 103
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144 # define RAND_R_NO_FIPS_RANDOM_METHOD_SET 101
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145 # define RAND_R_PRNG_NOT_SEEDED 100
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