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A Novel Face Template Protection Algorithm Based on the Fusion of Chaos Theory and RSA Encryption
Liu Yunan,Zhao Fudong,Xu Yanli,Cao Yu 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.6
In the face recognition system, the protection of the facial feature template has already become the most important part. In view of that the current protection methods cannot meet the security and the matching rate simultaneously, a hybrid encryption algorithm was proposed in this paper fusing chaotic encryption and RSA encryption to solve this problem. After the preprocessing to the ORL face database, the feature template was extracted by 2D2LDA and PCA in the non-transformation domain. Then we applied the scrambling encryption and RSA encryption to obtain the final security template. At last, a system with the nearest neighbor classifier and Euclidean distance was used for the matching verification. The experimental results showed that this hybrid encryption method was feasible, effective and easy transplantation with no matching rate reduction.