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中文摘要：
针对用户令牌泄露导致Bio Hashing识别性能严重退化的问题,给出了一种改进的Bio Hashing指纹模板保护方法,在量化过程中采用非线性的方法产生固定长度的二值序列,离散过程采用非线性的处理方法,有效提高了算法的安全性。理论分析和仿真结果表明,改进方法产生的二值序列能有效保护指纹模板的敏感数据,提高系统的识别性能。
英文摘要：
As for the main drawback of the original form of Bio Hashing is low performance when an imposter obtains a legitimate token and uses it to claim as a genuine. This paper,is circumvented the problem by an improved Bio Hashing for protection of fingerprint template,which could generate fixed long binary sequences nonlinearly in the process of quantitative. It improved the security of the algorithm by comparing the nonlinear process. The results of theory analyzing and simulation show that the proposed schemes can effectively protect the security of the fingerprint template of sensitive data and increase the recognition performance of the system.
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