b8454eebe3
This patch adds a cryptographic pseudo-random number generator based on CTR(AES-128). It is meant to be used in cases where a deterministic CPRNG is required. One of the first applications will be as an input in the IPsec IV generation process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
28 lines
718 B
C
28 lines
718 B
C
/*
|
|
* PRNG: Pseudo Random Number Generator
|
|
*
|
|
* (C) Neil Horman <nhorman@tuxdriver.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* any later version.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifndef _PRNG_H_
|
|
#define _PRNG_H_
|
|
struct prng_context;
|
|
|
|
int get_prng_bytes(char *buf, int nbytes, struct prng_context *ctx);
|
|
struct prng_context *alloc_prng_context(void);
|
|
int reset_prng_context(struct prng_context *ctx,
|
|
unsigned char *key, unsigned char *iv,
|
|
unsigned char *V,
|
|
unsigned char *DT);
|
|
void free_prng_context(struct prng_context *ctx);
|
|
|
|
#endif
|
|
|