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FAF.CS21.1 Criptografie și securitate
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Using the Vigenère cipher with the key k, the message m was encrypted into the cryptogram c.Which letter in the key participated in the encryption of the highlighted letter of the message?
m = TRANSMITTINGELECTRONICDATAk = BITLOCKER
In a symmetric algorithm a single key participates in both encryption and decryption.
Stream ciphers are often built using linear feedback shift registers (LFSRs) because they can be easily implemented in hardware.
Using the Homophonic cipher and the key, represented by the table below, the cryptogram C was obtained.Find out the initial message M. C = 1075963864.
Match the encryption algorithm with its type:
Using the Homophonic cipher and the key, represented by the table below, the cryptogram C was obtained.Find out the initial message M. C = 1075963864.
Substitution and permutation underlie both classical encryption algorithms and many modern ones.
Match the missing word or phrase in the criteria that define a good modern cryptographic algorithm: