OPERATION:
VESSEL

the problem

Steganography is the oldest crypto technique, and the most overlooked. Most people don’t know how trivial it is to hide an entire document inside a vacation photo.

the approach

A web frontend, a Python backend, LSB substitution for images and phase encoding for audio. Demonstrate the concept; let the user feel it.

what was built

A working app. Upload a carrier, upload a payload, download a stego file. Reverse the process to extract.

what was learned

The interesting research is in detection, not creation. Hiding is easy; finding is hard. That’s where the next case file lives.