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SY0-301 · Question #684

Which of the following must a user implement if they want to send a secret message to a co- worker by embedding it within an image?

The correct answer is B. Steganography. Steganography is the practice of hiding secret information within an ordinary, non-secret file or medium - such as embedding a message inside an image file - so that the existence of the message itself is concealed. This differs from encryption, which obscures the content but…

General security concepts

Question

Which of the following must a user implement if they want to send a secret message to a co- worker by embedding it within an image?

Options

  • ATransport encryption
  • BSteganography
  • CHashing
  • DDigital signature

How the community answered

(36 responses)
  • A
    6% (2)
  • B
    92% (33)
  • C
    3% (1)

Explanation

Steganography is the practice of hiding secret information within an ordinary, non-secret file or medium - such as embedding a message inside an image file - so that the existence of the message itself is concealed. This differs from encryption, which obscures the content but not the existence of a message. Transport encryption (A) secures data in transit. Hashing (C) produces a one-way fingerprint and cannot embed messages. A digital signature (D) verifies authenticity and integrity but does not hide data inside another file.

Topics

#steganography#data hiding#covert channels

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