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Which of the following algorithms uses three different keys to encrypt the plain text?
Which of the following algorithms uses three different keys to encrypt the plain text?A . Skipjack B. AES C. Blowfish D. 3DESView AnswerAnswer: D Explanation: 3DES https://en.wikipedia.org/wiki/Triple_DES Triple DES (3DES) has a three different keys with same size (56-bit).
Encryption of the same plain text with the same key results in the same cipher text. Use of an IV that is XORed with the first block of plain text solves this problem.
Encryption of the same plain text with the same key results in the same cipher text. Use of an IV that is XORed with the first block of plain text solves this problem.A . CFB B. GOST C. ECB D. RC4View AnswerAnswer: C Explanation: ECB https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation The simplest of the...
Attempting to crack encryption by simply trying as many randomly generated keys as possible is referred to as what?
Frank is trying to break into an encrypted file… He is attempting all the possible keys that could be used for this algorithm. Attempting to crack encryption by simply trying as many randomly generated keys as possible is referred to as what?A . Rainbow table B. Frequency analysis C. Brute...
Which algorithm implements an unbalanced Feistel cipher?
Which algorithm implements an unbalanced Feistel cipher?A . Skipjack B. RSA C. 3DES D. BlowfishView AnswerAnswer: A Explanation: Skipjack https://en.wikipedia.org/wiki/Skipjack_(cipher) Skipjack uses an 80-bit key to encrypt or decrypt 64-bit data blocks. It is an unbalanced Feistel network with 32 rounds.
