Can symmetric block ciphers be used for message
authentication?
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What is triple DES?
What are the most important attacks on stream ciphers ?
Is DES available in software?
Exactly how strong are these ciphers?
Can DES be used to protect classified information?
What exactly is DES?
Name different symmetric ciphers?
What are typical key spaces for symmetric and asymmetric ciphers?
How are block ciphers used to encrypt data longer than the block size?
What are some group-theoretic properties of product ciphers?
What is a block cipher ? what are various block ciphers?
How to prove a new block cipher, is resistant against differential cryptanalysis attack