机构地区: 华南农业大学信息学院
出 处: 《武汉理工大学学报》 2011年第7期147-151,共5页
摘 要: 在指纹数据库上研究了生物特征向量的提取和量化问题,讨论了量化前后的性能变化,并分析了理论上安全概略一致拒绝率和不一致接收率的界。采用BCH纠错码实现了安全概略的构造,计算了不同纠错能力下安全概略一致拒绝率和不一致接收率,分析了实际实现算法与理论界限产生差距的原因,指出了现有安全概略构造在性能和安全方面存在的问题。 Based on fingerprint database,extraction and quantization of biometric vector is studied,the change of performance after quantization is discussed and theoretic bound of genuine rejection rate and imposter acceptance rate are given.Using BCH code,construction of secure sketch is made and under different error correction capability genuine rejection rate and imposter acceptance rate are calculated,the distance between theoretic bound and practical parameters is discussed,problems of capability and security of secure sketch are pointed out.
领 域: [自动化与计算机技术] [自动化与计算机技术]