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RAND_SET_DRBG_TYPE(3ossl)	    OpenSSL	     RAND_SET_DRBG_TYPE(3ossl)

NAME
       RAND_set_DRBG_type, RAND_set_seed_source_type - specify the global
       random number generator types

SYNOPSIS
	#include <openssl/rand.h>

	int RAND_set_DRBG_type(OSSL_LIB_CTX *ctx, const	char *drbg, const char *propq,
			       const char *cipher, const char *digest);
	int RAND_set_seed_source_type(OSSL_LIB_CTX *ctx, const char *seed,
				      const char *propq);

DESCRIPTION
       RAND_set_DRBG_type() specifies the random bit generator that will be
       used within the library context ctx.  A generator of name drbg with
       properties propq	will be	fetched.  It will be instantiated with either
       cipher or digest	as its underlying cryptographic	algorithm.  This
       specifies the type that will be used for	the primary, public and
       private random instances.

       RAND_set_seed_source_type() specifies the seed source that will be used
       within the library context ctx.	The seed source	of name	seed with
       properties propq	will be	fetched	and used to seed the primary random
       big generator.

RETURN VALUES
       These function return 1 on success and 0	on failure.

NOTES
       These functions must be called before the random	bit generators are
       first created in	the library context.  They will	return an error	if the
       call is made too	late.

       The default DRBG	is "CTR-DRBG" using the	"AES-256-CTR" cipher.

       The default seed	source is "SEED-SRC".

SEE ALSO
       EVP_RAND(3), RAND_get0_primary(3)

HISTORY
       These functions were added in OpenSSL 3.0.

COPYRIGHT
       Copyright 2021 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>.

3.0.2+quic			  2022-03-15	     RAND_SET_DRBG_TYPE(3ossl)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | NOTES | SEE ALSO | HISTORY | COPYRIGHT

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