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GISP · Question #407

Which of the following statements about DES (Data Encryption Standard) is true?

The correct answer is A. Its most widely used symmetric encryption algorithm uses a 56-bit key. See the full explanation below for the reasoning.

Question

Which of the following statements about DES (Data Encryption Standard) is true?

Options

  • AIts most widely used symmetric encryption algorithm uses a 56-bit key.
  • BIts most widely used symmetric encryption algorithm uses a 32-bit key.
  • CIts most widely used symmetric encryption algorithm uses a 128-bit key.
  • DIts most widely used symmetric encryption algorithm uses a 64-bit key.

How the community answered

(38 responses)
  • A
    71% (27)
  • B
    5% (2)
  • C
    8% (3)
  • D
    16% (6)

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