Method of biometric authentication
First Claim
1. A method of biometric authentication comprising the steps of:
- a) taking a plurality of measurements of a biometric from a subject;
b) averaging said measurements to create a combined biometric consisting of a plurality of bits;
c) generating at least one random number;
d) generating a codeword from said at least one random number;
e) generating a list of random locations corresponding to a user-definable set of valid bits in said combined biometric;
f) combining the combined biometric readings that correspond to said random locations and said codeword;
g) generating a list that comprises said list of random locations and the combination of said combined biometric readings and said codeword;
h) generating a secret value;
i) generating a certificate that includes said list and said secret value; and
j) authenticating said subject using said certificate.
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Abstract
The present invention is a method of biometric authentication. The first step is taking a series of measurements of the biometric. The second step is averaging those measurements to create a valid iris model. The third step is generating a random number. The fourth step is using an error-correcting code to create a codeword using the random number. The fifth step is generating a list of random locations corresponding to valid bits in the biometric reading. The sixth step is generating a list of numbers consisting of the combination of specified biometric bits and the codeword. The seventh step is generating the secret by performing a hash on the random number. The eighth step is storing the secret and the list to a certificate. The ninth step of the method is authenticating the subject.
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Citations
27 Claims
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1. A method of biometric authentication comprising the steps of:
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a) taking a plurality of measurements of a biometric from a subject; b) averaging said measurements to create a combined biometric consisting of a plurality of bits; c) generating at least one random number; d) generating a codeword from said at least one random number; e) generating a list of random locations corresponding to a user-definable set of valid bits in said combined biometric; f) combining the combined biometric readings that correspond to said random locations and said codeword; g) generating a list that comprises said list of random locations and the combination of said combined biometric readings and said codeword; h) generating a secret value; i) generating a certificate that includes said list and said secret value; and j) authenticating said subject using said certificate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification