Drug Anti-forgery and Tracing System Based on Lightweight Asymmetric Identities

摘要

The authors analyze the defects of existent anti-forgery techniques, put forward the idea of applying a lightweight asymmetric identity to fraud guard, and design a drug anti-forgery and tracing system preliminarily. A lightweight asymmetric identity, generated by the optimized REESSE1+ digital signature scheme with an 80-bit modulus, and also called a Board-fingered Identity (BFID), hides the private key of a drug mill, the source information of a drug, and especially the unique number of a drug. A BFID contains only 16 characters with the security of magnitude 2 ^ 80, may be directly printed on the label of a drug concealingly, and does not need to be stored in a chip. The system based on a BFID has effects of anti-forgery, source tracing, and flow-direction tracking, and includes six subsystems: the source information editing subsystem, the key management subsystem, the BFID confection subsystem, the BFID verification subsystem, the source tracing subsystem, and the flow-direction tracking subsystem. When a BFID is verified, it is scratched out, inputted to a mobile phone, and sent to the unified verification platform which works in a cloud computing mode, and is bound to a mobile number. Then, the unified verification platform returns the 'True" or "False" value and the source information to the mobile phone of the consumer.