blob: 21d32deab3de458f5ffd654b31fa669ae66254d3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/*
* ecgen, tool for generating Elliptic curve domain parameters
* Copyright (C) 2017-2018 J08nY
*/
/**
* @file random.h
*/
#ifndef ECGEN_UTIL_RANDOM_H
#define ECGEN_UTIL_RANDOM_H
#include <pari/pari.h>
#include <stdbool.h>
/**
* @brief Init the PARI-GP random generator.
*
* Initializes the PARI-GP random generator, tries to do so from
* cryptographically strong sources(/dev/urandom) at first but falls back on
* clock_gettime and time(NULL).
*
* @return whether the initialization was successful
*/
bool random_init(void);
/**
* @brief Generate random <code>bits</code> sized prime.
* @param bits the size of the prime to generate
* @return a random prime in range [2^(bits - 1), 2^bits]
*/
GEN random_prime(unsigned long bits);
/**
* @brief
* @param lower
* @param upper
* @return
*/
GEN random_range(GEN lower, GEN upper);
/**
* @brief Generate random <code>bits</code> sized integer.
* @param bits the size of the integer to generate
* @return a random integer in range [2^(bits - 1), 2^bits]
*/
GEN random_int(unsigned long bits);
/**
* @brief
* @param field
* @return
*/
GEN random_field_element(GEN field);
#endif // ECGEN_UTIL_RANDOM_H
|
