Which steganography type hides the secret message in a pattern on the document that is unclear to the average reader?

Which steganography type hides the secret message in a pattern on the document that is unclear to the average reader?

• A. Visual semagrams steganography
• B. Text semagrams steganography
• C. Open code steganography
• D. Technical steganography

Answer: (C)

Hiding a message by using a pattern that appears on the document but isn’t obvious to an average reader relies on an agreed-upon method or code. Open code steganography fits this idea: the secret message is embedded in a pattern on the document according to a code that both sender and recipient know. To casual readers, the pattern looks innocuous, but someone with the open code can interpret the arrangement to reconstruct the hidden message. The other approaches would involve different channels or types of patterns—visual semagrams or text semagrams focus on visual or textual patterns and semantics, respectively, while technical steganography hides data in non-content aspects of a file or its structure rather than a pattern visible on the document itself.

Hiding a message by using a pattern that appears on the document but isn’t obvious to an average reader relies on an agreed-upon method or code. Open code steganography fits this idea: the secret message is embedded in a pattern on the document according to a code that both sender and recipient know. To casual readers, the pattern looks innocuous, but someone with the open code can interpret the arrangement to reconstruct the hidden message.

The other approaches would involve different channels or types of patterns—visual semagrams or text semagrams focus on visual or textual patterns and semantics, respectively, while technical steganography hides data in non-content aspects of a file or its structure rather than a pattern visible on the document itself.