Can symmetric block ciphers be used for message
authentication?
What are some group-theoretic properties of product ciphers?
What is a product cipher?
How to prove a new block cipher, is resistant against differential cryptanalysis attack
Is DES available in software?
Exactly how strong are these ciphers?
What are the properties of product ciphers?
What are the most important attacks on symmetric block ciphers?
How to make backups?
How was NSA involved in the design of DES?
What is the meaning of apostrophies in ciphers - ideas?
What is differential cryptanalysis?
Which of the two ciphers have the larger key space?