Cryptography
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11 Why does HMAC use two different keys? Apr 23 '14
8 Hide message length in symmetric key cryptography May 18 '14
5 Can a monoalphabetic substitution cipher attain perfect secrecy? Mar 13 '14
3 Does CCA security imply authenticated encryption? Jul 12 '14
1 PRG existance and P versus NP May 5 '14
-1 cryptography and use of python programming language [closed] Apr 10 '14

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