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/*
* Cryptographically Secure Randomness.
*
* Copyright (c) 2014 Marko Kreen
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/**
* @file
*
* Cryptographically Secure Randomness.
*/
#ifndef _USUAL_CRYPTO_CSRANDOM_H_
#define _USUAL_CRYPTO_CSRANDOM_H_
#include <usual/base.h>
/**
* Return random uint32_t.
*/
uint32_t csrandom(void);
/**
* Return unsigned integer in range.
*/
uint32_t csrandom_range(uint32_t upper_bound);
/**
* Fill buffer with random bytes.
*/
void csrandom_bytes(void *buf, size_t nbytes);
#endif
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