eccouncil · 312-50v13 · Q424 · multiple_choice · topic_1

In this form of encryption algorithm, every individual block contains 64-bit data, and three keys are used, where each…

In this form of encryption algorithm, every individual block contains 64-bit data, and three keys are used, where each key consists of 56 bits. Which is this encryption algorithm?

A.IDEA
B.Triple Data Encryption Standard
C.AES
D.MD5 encryption algorithm

Explanation

Selected Answer: B Characteristics of Triple DES (3DES). -- It operates on 64-bit blocks of data. -- It uses three 56-bit keys (K1, K2, and K3), effectively providing a key length of up to 168 bits. -- The encryption process involves three operations: encrypting with K1, decrypting with K2, and encrypting again with K3 (Encrypt-Decrypt-Encrypt or EDE mode).

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