02
Send data
Generate or enter a 16-byte one-time secret
0/32
Awaiting verification
Loopback test has not run yet
Awaiting rendered-pixel test
No real Canvas pixels have been read yet
Optical OOB · v1
SOURCE-AVAILABLE · NONCOMMERCIAL OPTICAL PAIRING LAB
Let pairing codes
fade into particles.
People see a flowing particle cloud. A camera recovers an error-protected one-time secret from consecutive frames.
128bit secret
300ms phase
CRCCCITT
01
Broadcast particle code
ALIGN DEVICE
03
Camera receiver
Scan this screen with another device
CAMERA
SYNC 0%Align the complete particle square on the computer with the guide
04
Decoded result
Release the pairing secret only after validation
A valid result will appear here
Frames that fail the protocol header or CRC are rejectedPROTOCOL PIPELINE
Vision is the carrier. Cryptography is the boundary.
- 1Frame
A 128-bit random secret, version, and CRC form a 21-byte packet.
- 2Correct
Hamming(12,8) encodes each byte and repairs a single-bit error.
- 3Modulate
252 data bits map into the inner region of an 18×18 optical grid.
- 4Recover
The camera compares opposite phases, synchronizes on the border, then validates and releases.
This project demonstrates an optical out-of-band authentication link. Production pairing must continue with an authenticated key exchange after recognition; Particle Code is not itself an encryption algorithm.