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EC-Council

112-51 · Question #19

Kevin, a security team member, was instructed to share a policy document with the employees. As it was supposed to be shared within the network, he used a simple algorithm to encrypt the document that

The correct answer is C. Transposition cipher. A transposition cipher is a type of cipher that encrypts a document by rearranging the same characters to produce the ciphertext. A transposition cipher does not change the identity or frequency of the characters, but only their position. A transposition cipher can use various me

Network Security Controls

Question

Kevin, a security team member, was instructed to share a policy document with the employees. As it was supposed to be shared within the network, he used a simple algorithm to encrypt the document that just rearranges the same characters to produce the ciphertext. Identify the type of cipher employed by Kevin in the above scenario.

Options

  • ASubstitution cipher
  • BStreamn cipher
  • CTransposition cipher
  • DBlock cipher

How the community answered

(22 responses)
  • B
    5% (1)
  • C
    91% (20)
  • D
    5% (1)

Explanation

A transposition cipher is a type of cipher that encrypts a document by rearranging the same characters to produce the ciphertext. A transposition cipher does not change the identity or frequency of the characters, but only their position. A transposition cipher can use various methods to permute the characters, such as writing them in a grid and reading them in a different order, or shifting them along a rail fence pattern. A transposition cipher is a simple and fast algorithm, but it can be easily broken by frequency analysis or anagramming. A transposition cipher is the type of cipher employed by Kevin in the above scenario, as he used a simple algorithm to encrypt the document that just rearranges the same characters to produce the

Topics

#transposition cipher#symmetric encryption#classical ciphers#cryptography

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