1*2874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 217f0f4a4SNeil Horman /* 317f0f4a4SNeil Horman * RNG: Random Number Generator algorithms under the crypto API 417f0f4a4SNeil Horman * 517f0f4a4SNeil Horman * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com> 694f1bb15SHerbert Xu * Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au> 717f0f4a4SNeil Horman */ 817f0f4a4SNeil Horman 917f0f4a4SNeil Horman #ifndef _CRYPTO_INTERNAL_RNG_H 1017f0f4a4SNeil Horman #define _CRYPTO_INTERNAL_RNG_H 1117f0f4a4SNeil Horman 1217f0f4a4SNeil Horman #include <crypto/algapi.h> 1317f0f4a4SNeil Horman #include <crypto/rng.h> 1417f0f4a4SNeil Horman 15acec27ffSHerbert Xu int crypto_register_rng(struct rng_alg *alg); 16acec27ffSHerbert Xu void crypto_unregister_rng(struct rng_alg *alg); 17881cd6c5SHerbert Xu int crypto_register_rngs(struct rng_alg *algs, int count); 18881cd6c5SHerbert Xu void crypto_unregister_rngs(struct rng_alg *algs, int count); 19acec27ffSHerbert Xu 207cecadb7SHerbert Xu #if defined(CONFIG_CRYPTO_RNG) || defined(CONFIG_CRYPTO_RNG_MODULE) 217cecadb7SHerbert Xu int crypto_del_default_rng(void); 227cecadb7SHerbert Xu #else crypto_del_default_rng(void)237cecadb7SHerbert Xustatic inline int crypto_del_default_rng(void) 247cecadb7SHerbert Xu { 257cecadb7SHerbert Xu return 0; 267cecadb7SHerbert Xu } 277cecadb7SHerbert Xu #endif 287cecadb7SHerbert Xu crypto_rng_ctx(struct crypto_rng * tfm)2917f0f4a4SNeil Hormanstatic inline void *crypto_rng_ctx(struct crypto_rng *tfm) 3017f0f4a4SNeil Horman { 3117f0f4a4SNeil Horman return crypto_tfm_ctx(&tfm->base); 3217f0f4a4SNeil Horman } 3317f0f4a4SNeil Horman crypto_rng_set_entropy(struct crypto_rng * tfm,const u8 * data,unsigned int len)347ca99d81SHerbert Xustatic inline void crypto_rng_set_entropy(struct crypto_rng *tfm, 357ca99d81SHerbert Xu const u8 *data, unsigned int len) 367ca99d81SHerbert Xu { 377ca99d81SHerbert Xu crypto_rng_alg(tfm)->set_ent(tfm, data, len); 387ca99d81SHerbert Xu } 397ca99d81SHerbert Xu 4017f0f4a4SNeil Horman #endif 41