Which technique describes hiding the secret message in a legitimate carrier message designed in a pattern unclear to the average reader?

Which technique describes hiding the secret message in a legitimate carrier message designed in a pattern unclear to the average reader?

• A. Visual Semagrams
• B. Open Codes
• C. Text Semagrams
• D. Linguistic Steganography

Answer: (C)

Hiding a secret message inside a normal-looking text by following a pattern that isn’t obvious to the casual reader is a textbook case of text-based steganography. Text Semagrams describe this approach, where the hidden data is encoded in the arrangement or attributes of the text itself, not in its subject matter. The carrier message remains readable and legitimate, while a prearranged pattern within the text carries the actual secret. How it works in practice: the sender and recipient agree on a pattern that maps textual features to bits or characters—for example, using the lengths of consecutive words, the punctuation, or the capitalization scheme to represent binary data or letters. To someone who doesn’t know the pattern, the text appears ordinary; only someone with the shared method can extract the hidden message by applying the pattern to the text. This is why it fits the scenario described. The message is concealed inside a legitimate carrier text, and the pattern is hidden from the average reader. Other approaches that rely on visuals or linguistic rewriting would fall into different categories, whereas using the text’s structural features to carry information aligns with Text Semagrams.

Hiding a secret message inside a normal-looking text by following a pattern that isn’t obvious to the casual reader is a textbook case of text-based steganography. Text Semagrams describe this approach, where the hidden data is encoded in the arrangement or attributes of the text itself, not in its subject matter. The carrier message remains readable and legitimate, while a prearranged pattern within the text carries the actual secret.

How it works in practice: the sender and recipient agree on a pattern that maps textual features to bits or characters—for example, using the lengths of consecutive words, the punctuation, or the capitalization scheme to represent binary data or letters. To someone who doesn’t know the pattern, the text appears ordinary; only someone with the shared method can extract the hidden message by applying the pattern to the text.

This is why it fits the scenario described. The message is concealed inside a legitimate carrier text, and the pattern is hidden from the average reader. Other approaches that rely on visuals or linguistic rewriting would fall into different categories, whereas using the text’s structural features to carry information aligns with Text Semagrams.