Add XXX_security_bits documentation

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

diff --git a/doc/man3/DH_size.pod b/doc/man3/DH_size.pod
index c118bf32348ab7a5ed96c2066e60e15cd1c89205..2421558d1f4815733ab73e0ba11156dc4c6f500e 100644 (file)
--- a/doc/man3/DH_size.pod
+++ b/doc/man3/DH_size.pod
@@ -2,29 +2,39 @@
 
 =head1 NAME
 
-DH_size, DH_bits - get Diffie-Hellman prime size
+DH_size, DH_bits, DH_security_bits - get Diffie-Hellman prime size and
+security bits
 
 =head1 SYNOPSIS
 
-#include <openssl/dh.h>
+ #include <openssl/dh.h>
 
-int DH_size(const DH *dh);
+ int DH_size(const DH *dh);
 
-int DH_bits(const DH *dh);
+ int DH_bits(const DH *dh);
+
+ int DH_security_bits(const DH *dh);
 
 =head1 DESCRIPTION
 
 DH_size() returns the Diffie-Hellman prime size in bytes. It can be used
 to determine how much memory must be allocated for the shared secret
-computed by DH_compute_key().
+computed by L<DH_compute_key(3)>.
 
 DH_bits() returns the number of significant bits.
 
 B<dh> and B<dh-E<gt>p> must not be B<NULL>.
 
+DH_security_bits() returns the number of security bits of the given B<dh>
+key. See L<BN_security_bits(3)>.
+
 =head1 RETURN VALUE
 
-The size.
+DH_size() returns the prime size of Diffie-Hellman in bytes.
+
+DH_bits() returns the number of bits in the key.
+
+DH_security_bits() returns the number of security bits.
 
 =head1 SEE ALSO
 
@@ -37,7 +47,7 @@ DH_bits() was added in OpenSSL 1.1.0.
 
 =head1 COPYRIGHT
 
-Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2017 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