基于口令和中国剩余定理的模糊金库算法

Fuzzy Vault Algorithm Based on Password and Chinese Remainder Theorem

模糊金库算法易受到位置攻击、暴力攻击及相关攻击。为了增强模糊金库算法抵抗这些攻击的能力,该文提出了基于口令和中国剩余定理的模糊金库算法。理论分析表明,该算法在抵抗这些攻击方面都有所提高。利用FVC2002-DB1指纹数据库,对该算法进行实验仿真。实验结果表明,该算法的GAR与FAR未受到损耗。

The fuzzy vault algorithm is easily vulnerable to the location based attack, the brute force attack and the correlation attack. To enhance the ability of the fuzzy vault algorithm on resisting those there attacks, this paper proposes a new fuzzy vault algorithm based on password and Chinese remainder theorem （CRT）. Theory analysis shows that the ability of the new algorithm on resisting those three attacks has improved. In ad- dition, by using the FVC2002-DB1 to stimulate proposed algorithms, and the experimental results show that proposed GAR is not decreased and proposed FAR is not increased.