文件名称:
Entropy Analysis and New Constructions of Biometric Key Generation Systems
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文件大小: 294kb
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上传时间: 2012-08-06
详细说明： 生物特征加密的一些论文Abstract—In this paper, a new, soft two-level approach for the generation of multiple and revocable biometric keys, adapted to the analog nature of biometric signals, is proposed. It consists of a novel randomized soft code-offset construction for the Euclidean metric, at the first level, and a code-redundancy construction for the Hamming metric, possibly based on a Reed–Solomon code, at the second level. The Shannon entropy analysis shows that the new construction achieves optimal security with respect to biometric t emplate protection, whereas the previously proposed constructions for the Euclidean metric are shown to be insecure in the multiple-key setting. ...展开收缩
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