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Diffstat (limited to 'providers/implementations/include/prov/seeding.h')
| -rw-r--r-- | providers/implementations/include/prov/seeding.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/providers/implementations/include/prov/seeding.h b/providers/implementations/include/prov/seeding.h new file mode 100644 index 0000000000..bd0a57a769 --- /dev/null +++ b/providers/implementations/include/prov/seeding.h @@ -0,0 +1,34 @@ +/* + * Copyright 2020 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include "prov/rand_pool.h" + +/* Hardware-based seeding functions. */ +size_t prov_acquire_entropy_from_tsc(RAND_POOL *pool); +size_t prov_acquire_entropy_from_cpu(RAND_POOL *pool); + +/* DRBG entropy callbacks. */ +size_t prov_drbg_get_additional_data(RAND_POOL *pool, unsigned char **pout); + +void prov_drbg_cleanup_additional_data(RAND_POOL *pool, unsigned char *out); + +size_t prov_pool_acquire_entropy(RAND_POOL *pool); +int prov_pool_add_nonce_data(RAND_POOL *pool); + +/* + * Add some platform specific additional data + * + * This function is platform specific and adds some random noise to the + * additional data used for generating random bytes and for reseeding + * the drbg. + * + * Returns 1 on success and 0 on failure. + */ +int rand_pool_add_additional_data(RAND_POOL *pool); + |