Which method stores data in the least significant bit of each byte in steganography?

Which method stores data in the least significant bit of each byte in steganography?

• A. LSB method
• B. MSB method
• C. Bitwise permutation
• D. Parity encoding

Answer: (A)

Storing data in the least significant bit of each byte is done by the LSB method. Because each byte only changes at its lowest-order bit, the overall value of the byte—and thus the cover data like an image’s pixels or an audio sample—changes very little. This minimizes perceptual impact while allowing a payload to be hidden across many bytes. Why this fits best over the others: altering the most significant bit would cause noticeable changes to the data, making the hidden information easily detectable. Bitwise permutation focuses on rearranging bits rather than embedding new data into the LSB, and parity encoding uses parity bits for error-checking rather than carrying a hidden payload in every byte.

Storing data in the least significant bit of each byte is done by the LSB method. Because each byte only changes at its lowest-order bit, the overall value of the byte—and thus the cover data like an image’s pixels or an audio sample—changes very little. This minimizes perceptual impact while allowing a payload to be hidden across many bytes.

Why this fits best over the others: altering the most significant bit would cause noticeable changes to the data, making the hidden information easily detectable. Bitwise permutation focuses on rearranging bits rather than embedding new data into the LSB, and parity encoding uses parity bits for error-checking rather than carrying a hidden payload in every byte.