LTKCPP-- LLRP Toolkit C Plus Plus Library
rand.h
00001 /* crypto/rand/rand.h */
00002 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
00003  * All rights reserved.
00004  *
00005  * This package is an SSL implementation written
00006  * by Eric Young (eay@cryptsoft.com).
00007  * The implementation was written so as to conform with Netscapes SSL.
00008  *
00009  * This library is free for commercial and non-commercial use as long as
00010  * the following conditions are aheared to.  The following conditions
00011  * apply to all code found in this distribution, be it the RC4, RSA,
00012  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
00013  * included with this distribution is covered by the same copyright terms
00014  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
00015  *
00016  * Copyright remains Eric Young's, and as such any Copyright notices in
00017  * the code are not to be removed.
00018  * If this package is used in a product, Eric Young should be given attribution
00019  * as the author of the parts of the library used.
00020  * This can be in the form of a textual message at program startup or
00021  * in documentation (online or textual) provided with the package.
00022  *
00023  * Redistribution and use in source and binary forms, with or without
00024  * modification, are permitted provided that the following conditions
00025  * are met:
00026  * 1. Redistributions of source code must retain the copyright
00027  *    notice, this list of conditions and the following disclaimer.
00028  * 2. Redistributions in binary form must reproduce the above copyright
00029  *    notice, this list of conditions and the following disclaimer in the
00030  *    documentation and/or other materials provided with the distribution.
00031  * 3. All advertising materials mentioning features or use of this software
00032  *    must display the following acknowledgement:
00033  *    "This product includes cryptographic software written by
00034  *     Eric Young (eay@cryptsoft.com)"
00035  *    The word 'cryptographic' can be left out if the rouines from the library
00036  *    being used are not cryptographic related :-).
00037  * 4. If you include any Windows specific code (or a derivative thereof) from
00038  *    the apps directory (application code) you must include an acknowledgement:
00039  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
00040  *
00041  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
00042  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00043  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00044  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
00045  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00046  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00047  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00048  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00049  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00050  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00051  * SUCH DAMAGE.
00052  *
00053  * The licence and distribution terms for any publically available version or
00054  * derivative of this code cannot be changed.  i.e. this code cannot simply be
00055  * copied and put under another distribution licence
00056  * [including the GNU Public Licence.]
00057  */
00058 
00059 #ifndef HEADER_RAND_H
00060 # define HEADER_RAND_H
00061 
00062 # include <stdlib.h>
00063 # include <openssl/ossl_typ.h>
00064 # include <openssl/e_os2.h>
00065 
00066 # if defined(OPENSSL_SYS_WINDOWS)
00067 #  include <windows.h>
00068 # endif
00069 
00070 #ifdef  __cplusplus
00071 extern "C" {
00072 #endif
00073 
00074 # if defined(OPENSSL_FIPS)
00075 #  define FIPS_RAND_SIZE_T size_t
00076 # endif
00077 
00078 /* Already defined in ossl_typ.h */
00079 /* typedef struct rand_meth_st RAND_METHOD; */
00080 
00081 struct rand_meth_st {
00082     void (*seed) (const void *buf, int num);
00083     int (*bytes) (unsigned char *buf, int num);
00084     void (*cleanup) (void);
00085     void (*add) (const void *buf, int num, double entropy);
00086     int (*pseudorand) (unsigned char *buf, int num);
00087     int (*status) (void);
00088 };
00089 
00090 # ifdef BN_DEBUG
00091 extern int rand_predictable;
00092 # endif
00093 
00094 int RAND_set_rand_method(const RAND_METHOD *meth);
00095 const RAND_METHOD *RAND_get_rand_method(void);
00096 # ifndef OPENSSL_NO_ENGINE
00097 int RAND_set_rand_engine(ENGINE *engine);
00098 # endif
00099 RAND_METHOD *RAND_SSLeay(void);
00100 void RAND_cleanup(void);
00101 int RAND_bytes(unsigned char *buf, int num);
00102 int RAND_pseudo_bytes(unsigned char *buf, int num);
00103 void RAND_seed(const void *buf, int num);
00104 void RAND_add(const void *buf, int num, double entropy);
00105 int RAND_load_file(const char *file, long max_bytes);
00106 int RAND_write_file(const char *file);
00107 const char *RAND_file_name(char *file, size_t num);
00108 int RAND_status(void);
00109 int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes);
00110 int RAND_egd(const char *path);
00111 int RAND_egd_bytes(const char *path, int bytes);
00112 int RAND_poll(void);
00113 
00114 # if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
00115 
00116 void RAND_screen(void);
00117 int RAND_event(UINT, WPARAM, LPARAM);
00118 
00119 # endif
00120 
00121 # ifdef OPENSSL_FIPS
00122 void RAND_set_fips_drbg_type(int type, int flags);
00123 int RAND_init_fips(void);
00124 # endif
00125 
00126 /* BEGIN ERROR CODES */
00127 /*
00128  * The following lines are auto generated by the script mkerr.pl. Any changes
00129  * made after this point may be overwritten when the script is next run.
00130  */
00131 void ERR_load_RAND_strings(void);
00132 
00133 /* Error codes for the RAND functions. */
00134 
00135 /* Function codes. */
00136 # define RAND_F_RAND_GET_RAND_METHOD                      101
00137 # define RAND_F_RAND_INIT_FIPS                            102
00138 # define RAND_F_SSLEAY_RAND_BYTES                         100
00139 
00140 /* Reason codes. */
00141 # define RAND_R_DUAL_EC_DRBG_DISABLED                     104
00142 # define RAND_R_ERROR_INITIALISING_DRBG                   102
00143 # define RAND_R_ERROR_INSTANTIATING_DRBG                  103
00144 # define RAND_R_NO_FIPS_RANDOM_METHOD_SET                 101
00145 # define RAND_R_PRNG_NOT_SEEDED                           100
00146 
00147 #ifdef  __cplusplus
00148 }
00149 #endif
00150 #endif