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- =pod
- =head1 NAME
- rand_bytes_ex, rand_priv_bytes_ex
- - internal random number routines
- =head1 SYNOPSIS
- #include "crypto/rand.h"
- int rand_bytes_ex(OPENSSL_CTX *ctx, unsigned char *buf, int num);
- int rand_priv_bytes_ex(OPENSSL_CTX *ctx, unsigned char *buf, int num);
- =head1 DESCRIPTION
- rand_bytes_ex() and rand_priv_bytes_ex() are the equivalent of RAND_bytes() and
- RAND_priv_bytes() in the public API except that they both take an additional
- I<ctx> parameter.
- The DRBG used for the operation is the public or private DRBG associated with
- the specified I<ctx>. The parameter can be NULL, in which case
- the default library ctx is used.
- If the default RAND_METHOD has been changed then for compatibility reasons the
- RAND_METHOD will be used in preference and the DRBG of the library context
- ignored.
- =head1 RETURN VALUES
- rand_bytes_ex() and rand_bytes_priv_ex() return 0 or less on error or 1 on
- success.
- =head1 COPYRIGHT
- Copyright 2019 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
- L<https://www.openssl.org/source/license.html>.
- =cut
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