=head1 NAME
-Modes of DES and other crypto algorithms of OpenSSL
+Modes of DES - The variants of DES and other crypto algorithms of OpenSSL
=head1 DESCRIPTION
-Several crypto algorithms fo OpenSSL can be used in a number of modes. The
-following text has been written in large parts by Eric Young in his original
-documentation for SSLeay, the predecessor of OpenSSL. In turn, he attributed
-it to:
-
- AS 2805.5.2
- Australian Standard
- Electronic funds transfer - Requirements for interfaces,
- Part 5.2: Modes of operation for an n-bit block cipher algorithm
- Appendix A
+Several crypto algorithms fo OpenSSL can be used in a number of modes. Those
+are used for using block ciphers in a way similar to stream ciphers, among
+other things.
=head1 OVERVIEW
=back
+=head1 NOTES
+
+This text was been written in large parts by Eric Young in his original
+documentation for SSLeay, the predecessor of OpenSSL. In turn, he attributed
+it to:
+
+ AS 2805.5.2
+ Australian Standard
+ Electronic funds transfer - Requirements for interfaces,
+ Part 5.2: Modes of operation for an n-bit block cipher algorithm
+ Appendix A
+
=head1 SEE ALSO
L<blowfish(3)|blowfish(3)>, L<des(3)|des(3)>, L<idea(3)|idea(3)>,