A Diploma Anti-forgery System Based on Lightweight Digital Signatures

In this paper the authors analyze the problems and shortcomings of the existing diploma anti-forgery systems, and propose a new diploma anti-forgery system based on digital identities. A digital identity is produced through the JUNA lightweight digital signature scheme. It hide the private key of a university, the ID number of a student, the graduating date etc, consists of only 16 alphanumeric characters, and can be printed directly on a diploma page. When a digital identity is verified, it is inputted into a mobile phone by a checker, and then is sent to a unified verification platform which stores public keys of all universities and the informaton of students, and returns the result of "True / False" to the mobile phone. Besides, the new system adds a resident ID number as the security trusted root to a digital identity, which effectively and thoroughly solves the diploma anti-forgery problem with low cost and low environmental pollution.