From b8454eebe380677789735fd6bad368af2e6b2d1e Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Mon, 7 Jul 2008 22:41:31 +0800 Subject: crypto: prng - Deterministic CPRNG 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 Signed-off-by: Herbert Xu --- crypto/prng.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 crypto/prng.h (limited to 'crypto/prng.h') diff --git a/crypto/prng.h b/crypto/prng.h new file mode 100644 index 00000000000..1ac9be5009b --- /dev/null +++ b/crypto/prng.h @@ -0,0 +1,27 @@ +/* + * PRNG: Pseudo Random Number Generator + * + * (C) Neil Horman + * + * 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 + -- cgit v1.2.3