专利名称：Protection of biometric data via key-
dependent sampling
发明人：Stephen Michael Matyas, Jr.,Mohammad
Peyravian
申请号：US09238700
申请日：19990127
公开号：US06507912B1
公开日：
尤丽霞
20030114
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专利附图：
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摘要：Key-dependent sampling of a biometric characteristic is performed at a client,to thereby generate key-dependent biometric data samples. The key-dependent
和颜悦色的意思biometric data samples are then transmitted from the client to a rver. By sampling the biometric characteristic at the client in a key-dependent manner, the key-dependent biometric data samples may be transmitted from the client to the rver without the need for additional encryption and/or a signature. A key is preferably transmitted from the rver to the client. The key is then ud to perform the key-dependent sampling of the biometric characteristic at the client. The key-dependent sampling may be performed by sampling the biometric characteristic at a sampling frequency that is a function of the key. Alternatively, the key can be applied to the sampled biometric data, to thereby generate the key-dependent biometric data samples that are a function of the key. The key is preferably ud to perform nonlinear key-dependent sampling of the biometric characteristic at the client, for example by using the key to determine the sampling frequency and also using the key to apply a nonlinear function to the sampled biometric data. Further encryption of the biometric data and/or the u of a signature with the biometric data need not be performed.
槐花香
申请人：INTERNATIONAL BUSINESS MACHINES CORPORATION
芒果切法
代理机构：Myers Bigel Sibley & Sajovec
代理人：Jeanine S. Ray-Yarletts
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