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/*
* ecgen, tool for generating Elliptic curve domain parameters
* Copyright (C) 2017-2018 J08nY
*/
/**
* @file random.h
*/
#ifndef ECGEN_RANDOM_H
#define ECGEN_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 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);
#endif // ECGEN_RANDOM_H
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