Campaigns / Proof of Tampering / Raster Ghost

Raster Ghost

a

Architect

ahonore

Difficulty

2/5

ETA

10 min

An evidence thumbnail was partly overwritten, but its grayscale values were recovered from cache. The image itself is unremarkable. The forensic team suspects the least significant bits still carry a short message.

Read the least significant bit of each value in row-major order. Group bits into bytes. Stop when you reach a newline byte.

◆ Input solution

◇ Stage cleared

Next Stage →