Optical Hash Authentication for Security Documents

The patent extracts the authentication data from electronic storage (memory chips) and represents it purely in optical form through printed hash values. This removes the need for electronic components while maintaining authentication capability, as the hash values can be captured by standard camera sensors and verified against stored reference values.

The patent replaces electronic reading devices and cryptographic processing with an optical system. Instead of using specialized readers to access chip data, the solution uses optical sensors (camera) to capture printed hash values, substituting electronic mechanisms with optical ones for both data storage and retrieval.

The patent makes the authentication system universal by enabling any device with a standard camera sensor to perform authentication. Instead of requiring specialized reading devices, the solution uses the ubiquitous camera found in smartphones and computers, allowing anyone to verify document authenticity without specialized equipment.

The patent uses optical copying through camera capture to retrieve authentication data from the printed document. Instead of electronic reading, the system creates an optical copy of the hash values using the camera sensor, which can then be processed for verification against stored reference values.

The patent replaces expensive electronic components with inexpensive printed optical elements. The hash values are printed directly on the document using standard printing techniques, eliminating the need for costly memory chips, processors, and electronic interfaces, thereby significantly reducing production costs and complexity.

The patent extracts authentication functionality from electronic components and implements it through optical printing. By removing the need for electronic storage and processing elements, the document can be manufactured using simple printing processes while maintaining security through the printed hash values.