SSCP: Systems Security Certified PractitionerDemo

By ISC · Question Mode

QuestionQ910

Cryptography

What uses a key with the same length as the message, with each plaintext bit or character encrypted using modular addition?

  • A Running key cipher
  • B One-time pad
  • C Steganography
  • D Cipher block chaining
Explanation

A one-time pad uses a key equal in length to the plaintext and encrypts each corresponding bit or character by combining it with the key symbol, such as through modular addition.

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