/* * RNG: Random Number Generator algorithms under the crypto API * * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com> * Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au> * * 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 option) * any later version. * */ #ifndef _CRYPTO_INTERNAL_RNG_H #define _CRYPTO_INTERNAL_RNG_H #include <crypto/algapi.h> #include <crypto/rng.h> int crypto_register_rng(struct rng_alg *alg); void crypto_unregister_rng(struct rng_alg *alg); int crypto_register_rngs(struct rng_alg *algs, int count); void crypto_unregister_rngs(struct rng_alg *algs, int count); #if defined(CONFIG_CRYPTO_RNG) || defined(CONFIG_CRYPTO_RNG_MODULE) int crypto_del_default_rng(void); #else static inline int crypto_del_default_rng(void) { return 0; } #endif static inline void *crypto_rng_ctx(struct crypto_rng *tfm) { return crypto_tfm_ctx(&tfm->base); } static inline void crypto_rng_set_entropy(struct crypto_rng *tfm, const u8 *data, unsigned int len) { crypto_rng_alg(tfm)->set_ent(tfm, data, len); } #endif