Biometric Encryption Method, Encryption Matching Method and Encryption System, Encryption Matching System
A technology of biometric features and encryption methods, applied in the field of biometric feature recognition, can solve problems such as difficult replacement of biometric features, leakage of fingerprint image fingerprint features, difficulty in using one-way encryption methods, etc.
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[0093] Such as figure 1 The flow chart of Embodiment 1 of the encryption method for biometric features of the present invention includes the following steps:
[0094] S10 collects the biometric feature g to be identified, where the biometric feature g to be identified is a face or a fingerprint, which is a human face in this embodiment;
[0095] S11 Select N feature base spaces of the biometric feature g to be identified, each of the feature base spaces is composed of several feature bases, wherein N≥1, N is an integer; in this embodiment, one feature base space F of the biometric feature to be identified is selected, The eigenbasis space F consists of several eigenbasis, denoted as F={f 1 , f 2 , f 3 ,...}, use the principal component analysis method to select the feature base, the feature base space is composed of several face feature bases, when obtaining the face feature base, since the center of the two eyes can be used as the benchmark for alignment, it can be used T...
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