Why do you keep the name of the used cipher in the open?
What are the most important attacks on stream ciphers ?
What can be proven about the security of a product cipher?
Can symmetric block ciphers be used for message authentication?
What is differential cryptanalysis?
What are typical key spaces for symmetric and asymmetric ciphers?
Is DES available in hardware?
Which cipher is the strongest one?
How are block ciphers used to encrypt data longer than the block size?
Exactly how strong are these ciphers?
Are one-time pads really unbreakable?
what is CBC?
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