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ECCouncil 212-81 Practice Test - Questions Answers, Page 11

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Question 101

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Electromechanical rotor-based cipher used in World War II

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Question 102

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The concept that if one bit of data changes, the cipher text will all completely change as well.

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Question 103

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Bruce Schneier is a well-known and highly respected cryptographer. He has developed several pseudo random number generators as well as worked on teams developing symmetric ciphers. Which one of the following is a symmetric block cipher designed in 1993 by Bruce Schneier team that is unpatented?

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Question 104

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Which of the following would be the fastest.

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Question 105

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A symmetric block cipher designed in 1993 by Bruce Schneier. Was intended as a replacement for DES. Like DES it is a 16 round Feistel working on 64bit blocks. Can have bit sizes 32bits to 448bits.

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Question 106

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The most widely used digital certificate standard. First issued July 3, 1988. It is a digital document that contains a public key signed by the trusted third party, which is known as a Certificate Authority, or C

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Question 107

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Which of the following is a protocol for exchanging keys?

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Question 108

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Symmetric algorithm. Designed by James Massey and Xuejia Lai. Operates on 64 bit blocks and has a 128 bit key. Consists of 8 identical transformations each round and an output transformation.

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Question 109

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Which of the following is required for a hash?

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Question 110

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What size block does Skipjack use?

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