Method and System for Verification and Authentication Using Optically Encoded QR Codes

摘要

An optical security method for object authentication using photon-counting encryption implemented with phase encoded QR codes. By combining the full phase double-random-phase encryption with photon-counting imaging method and applying an iterative Huffman coding technique, encryption and compression of an image containing primary information about the object is achieved. This data can then be stored inside of an optically phase-encoded QR code for robust read out, decryption, and authentication. The optically encoded QR code is verified by examining the speckle signature of the optical masks using statistical analysis.

主权项

1. A method for optical security, tagging and authentication, the method comprising the steps of:
encrypting image data; producing photon-limited amplitude image data by applying photon-counting to the amplitude of the encrypted image data; iteratively compressing the encrypted and photon-limited amplitude image data; storing compressed and encrypted image data; scanning the compressed and encrypted image data; decompressing the compressed and encrypted image data; decrypting the decompressed and encrypted image data; authenticating the image data, and attaching or embedding at least one optical mask or pattern with the encrypted data for object authentication.