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Data Encryption Standard is implemented using the Feistel Cipher which employs 16 round of Feistel structure.(a) DES(b) IDEA(c) Caesar cipher(d) TwofishI have been asked this question in an online quiz.My question comes from Cryptography in division Cryptography in Security of Cyber Security

Answer»

Correct choice is (a) DES

Explanation: Data Encryption Standard is a BLOCK CIPHER which implements the Feistel Cipher which EMPLOYS 16 round of Feistel structure. The block SIZE it uses is 64-bit.



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