openssl/doc/man3/RAND_cleanup.pod

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=head1 NAME

RAND_cleanup - erase the PRNG state

=head1 SYNOPSIS

 #include <openssl/rand.h>

 #if OPENSSL_API_COMPAT < 0x10100000L
 void RAND_cleanup(void)
 #endif

=head1 DESCRIPTION

Prior to OpenSSL 1.1.0, RAND_cleanup() released all resources used by
the PRNG.  As of version 1.1.0, it does nothing and should not be called,
since no explicit initialisation or de-initialisation is necessary. See
L<OPENSSL_init_crypto(3)>.

=head1 RETURN VALUES

RAND_cleanup() returns no value.

=head1 HISTORY

RAND_cleanup() was deprecated in OpenSSL 1.1.0; do not use it.
See L<OPENSSL_init_crypto(3)>

=head1 SEE ALSO

L<RAND(7)>

=head1 COPYRIGHT

Copyright 2000-2018 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
L<https://www.openssl.org/source/license.html>.

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