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SYSTEMS AND METHODS FOR EXTENDING THE DOMAIN OF BIOMETRIC TEMPLATE PROTECTION ALGORITHMS FROM INTEGER-VALUED FEATURE VECTORS TO REAL-VALUED FEATURE VECTORS
SYSTEMS AND METHODS FOR EXTENDING THE DOMAIN OF BIOMETRIC TEMPLATE PROTECTION ALGORITHMS FROM INTEGER-VALUED FEATURE VECTORS TO REAL-VALUED FEATURE VECTORS
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机译：用于将生物特征模板保护算法的域从整数值特征向量扩展到实值特征向量的系统和方法
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摘要
Systems and methods for generating a secure biometric template. The methods comprise: obtaining biometric data from an individual, the biometric data represented as a real-valued feature vector x; mapping the real-valued feature vector x to an integer-valued feature vector X by multiplying each component of the real-valued feature vector x by a value s and performing a nearest integer function using results of the multiplying; and generating the secure biometric template by a cryptographic algorithm using the integer-valued feature vector X. s is a function of n, p and . n is the length of the real-valued feature vector x. p is a known parameter of a distance function used to determine a distance between two biometric templates. is a parameter controlling the accuracy preserving feature of the present solution. The secure biometric template is used for computer security purposes.
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