lib/hcrypto/rand.h

   1
   2 /*
   3  * Copyright (c) 2006 Kungliga Tekniska Högskolan
   4  * (Royal Institute of Technology, Stockholm, Sweden).
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * 3. Neither the name of the Institute nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 /*
  36  * $Id$
  37  */
  38
  39 #ifndef _HEIM_RAND_H
  40 #define _HEIM_RAND_H 1
  41
  42 typedef struct RAND_METHOD RAND_METHOD;
  43
  44 #include <hcrypto/bn.h>
  45 #include <hcrypto/engine.h>
  46
  47 /* symbol renaming */
  48 #define RAND_bytes hc_RAND_bytes
  49 #define RAND_pseudo_bytes hc_RAND_pseudo_bytes
  50 #define RAND_seed hc_RAND_seed
  51 #define RAND_cleanup hc_RAND_cleanup
  52 #define RAND_add hc_RAND_add
  53 #define RAND_set_rand_method hc_RAND_set_rand_method
  54 #define RAND_get_rand_method hc_RAND_get_rand_method
  55 #define RAND_set_rand_engine hc_RAND_set_rand_engine
  56 #define RAND_file_name hc_RAND_file_name
  57 #define RAND_load_file hc_RAND_load_file
  58 #define RAND_write_file hc_RAND_write_file
  59 #define RAND_status hc_RAND_status
  60 #define RAND_egd hc_RAND_egd
  61 #define RAND_egd_bytes hc_RAND_egd_bytes
  62 #define RAND_fortuna_method hc_RAND_fortuna_method
  63 #define RAND_egd_method hc_RAND_egd_method
  64 #define RAND_unix_method hc_RAND_unix_method
  65
  66 /*
  67  *
  68  */
  69
  70 struct RAND_METHOD
  71 {
  72     void (*seed)(const void *, int);
  73     int (*bytes)(unsigned char *, int);
  74     void (*cleanup)(void);
  75     void (*add)(const void *, int, double);
  76     int (*pseudorand)(unsigned char *, int);
  77     int (*status)(void);
  78 };
  79
  80 /*
  81  *
  82  */
  83
  84 int     RAND_bytes(void *, size_t num);
  85 int     RAND_pseudo_bytes(void *, size_t);
  86 void    RAND_seed(const void *, size_t);
  87 void    RAND_cleanup(void);
  88 void    RAND_add(const void *, size_t, double);
  89
  90 int     RAND_set_rand_method(const RAND_METHOD *);
  91 const RAND_METHOD *
  92         RAND_get_rand_method(void);
  93 int     RAND_set_rand_engine(ENGINE *);
  94
  95 const char *
  96         RAND_file_name(char *, size_t);
  97 int     RAND_load_file(const char *, size_t);
  98 int     RAND_write_file(const char *);
  99 int     RAND_status(void);
 100 int     RAND_egd(const char *);
 101 int     RAND_egd_bytes(const char *, int);
 102
 103
 104 const RAND_METHOD *     RAND_fortuna_method(void);
 105 const RAND_METHOD *     RAND_unix_method(void);
 106 const RAND_METHOD *     RAND_egd_method(void);
 107
 108 #endif /* _HEIM_RAND_H */