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NAMERAND_add, RAND_poll, RAND_seed, RAND_status, RAND_event, RAND_screen, RAND_keep_random_devices_open - add randomness to the PRNG or get its status
SYNOPSIS#include <openssl/rand.h> int RAND_status(void); int RAND_poll(); void RAND_add(const void *buf, int num, double randomness); void RAND_seed(const void *buf, int num); void RAND_keep_random_devices_open(int keep); Deprecated: #if OPENSSL_API_COMPAT < 0x10100000L int RAND_event(UINT iMsg, WPARAM wParam, LPARAM lParam); void RAND_screen(void); #endif
DESCRIPTIONThese functions can be used to seed the random generator and to check its seeded state. In general, manual (re-)seeding of the default OpenSSL random generator (RAND_OpenSSL(3)) is not necessary (but allowed), since it does (re-)seed itself automatically using trusted system entropy sources. This holds unless the default RAND_METHOD has been replaced or OpenSSL was built with automatic reseeding disabled, see RAND(7) for more details.
RETURN VALUES
The other functions do not return values.
SEE ALSORAND_bytes(3), RAND_egd(3), RAND_load_file(3), RAND(7)
HISTORY
COPYRIGHTCopyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (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. |
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