=item B<-salt>
-use a salt in the key derivation routines. This option should B<ALWAYS>
-be used unless compatibility with previous versions of OpenSSL or SSLeay
-is required. This option is only present on OpenSSL versions 0.9.5 or
-above.
+use a salt in the key derivation routines. This is the default.
=item B<-nosalt>
-don't use a salt in the key derivation routines. This is the default for
-compatibility with previous versions of OpenSSL and SSLeay.
+don't use a salt in the key derivation routines. This option B<SHOULD NOT> be
+used except for test purposes or compatibility with ancient versions of OpenSSL
+and SSLeay.
=item B<-e>
list of ciphers, supported by your versesion of OpenSSL, including
ones provided by configured engines.
+The B<enc> program does not support authenticated encryption modes
+like CCM and GCM. The utility does not store or retrieve the
+authentication tag.
+
base64 Base 64