the digest to use. This affects any signing or display option that uses a message
digest, such as the B<-fingerprint>, B<-signkey> and B<-CA> options. If not
-specified then MD5 is used. If the key being used to sign with is a DSA key then
-this option has no effect: SHA1 is always used with DSA keys.
+specified then SHA1 is used. If the key being used to sign with is a DSA key
+then this option has no effect: SHA1 is always used with DSA keys.
=item B<-engine id>
L<req(1)|req(1)>, L<ca(1)|ca(1)>, L<genrsa(1)|genrsa(1)>,
L<gendsa(1)|gendsa(1)>, L<verify(1)|verify(1)>
+=head1 HISTORY
+
+Before OpenSSL 0.9.8, the default digest for RSA keys was MD5.
+
=cut