Add documentation for X509_cmp and related APIs

[openssl.git] / doc / man3 / RAND_DRBG_set_callbacks.pod

diff --git a/doc/man3/RAND_DRBG_set_callbacks.pod b/doc/man3/RAND_DRBG_set_callbacks.pod
index a927d6a7dacc9006308ec7d8e0348a9284aac9f2..09a6ef1f7e04742853b0ff624dc6d9a39e3a3c28 100644 (file)
--- a/doc/man3/RAND_DRBG_set_callbacks.pod
+++ b/doc/man3/RAND_DRBG_set_callbacks.pod
@@ -104,12 +104,9 @@ contents safely before freeing it, in order not to leave sensitive information
 about the DRBG's state in memory.
 
 A request for prediction resistance can only be satisfied by pulling fresh
-entropy from one of the approved entropy sources listed in section 5.5.2 of
-[NIST SP 800-90C].
-Since the default implementation of the get_entropy callback does not have access
-to such an approved entropy source, a request for prediction resistance will
-always fail.
-In other words, prediction resistance is currently not supported yet by the DRBG.
+entropy from a live entropy source (section 5.5.2 of [NIST SP 800-90C]).
+It is up to the user to ensure that a live entropy source is configured
+and is being used.
 
 The derivation function is disabled during initialization by calling the
 RAND_DRBG_set() function with the RAND_DRBG_FLAG_CTR_NO_DF flag.
@@ -124,22 +121,21 @@ In this case the DRBG will automatically request an extra amount of entropy
 utilize for the nonce, following the recommendations of [NIST SP 800-90A Rev. 1],
 section 8.6.7.
 
-
-=head1 HISTORY
-
-The RAND_DRBG functions were added in OpenSSL 1.1.1.
-
 =head1 SEE ALSO
 
 L<RAND_DRBG_new(3)>,
 L<RAND_DRBG_reseed(3)>,
 L<RAND_DRBG(7)>
 
+=head1 HISTORY
+
+The RAND_DRBG functions were added in OpenSSL 1.1.1.
+
 =head1 COPYRIGHT
 
-Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved.
 
-Licensed under the OpenSSL license (the "License").  You may not use
+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>.