Method and system for normalizing biometric variations to authenticate users from a public database and that ensures individual biometric data privacy
Abstract
A password system comprises a set of codewords spaced apart from one another by a Hamming distance (HD) that exceeds twice the variability that can be projected for a series of biometric measurements for a particular individual and that is less than the HD that can be encountered between two individuals. To enroll an individual, a biometric measurement is taken and exclusive-ORed with a random codeword to produce a "reference value." To verify the individual later, a biometric measurement is taken and exclusive-ORed with the reference value to reproduce the original random codeword or its approximation. If the reproduced value is not a codeword, the nearest codeword to it is found, and the bits that were corrected to produce the codeword to it is found, and the bits that were corrected to produce the codeword are also toggled in the biometric measurement taken and the codeword generated during enrollment. The correction scheme can be implemented by any conventional error correction code such as Reed-Muller code R(m,n). In the implementation using a hand geometry device an R(2,5) code has been used in this invention. Such codeword and biometric measurement can then be used to see if the individual is an authorizedmore »
- Inventors:
-
- Oakland, CA
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 872919
- Patent Number(s):
- 6038315
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; normalizing; biometric; variations; authenticate; users; public; database; ensures; individual; data; privacy; password; comprises; set; codewords; spaced; apart; hamming; distance; hd; exceeds; twice; variability; projected; series; measurements; particular; encountered; individuals; enroll; measurement; exclusive-ored; random; codeword; produce; reference; value; verify; reproduce; original; approximation; reproduced; nearest; found; bits; corrected; toggled; generated; enrollment; correction; scheme; implemented; conventional; error; code; reed-muller; implementation; hand; geometry; device; authorized; user; diffie-hellman; key; encryption; schemes; hashing; procedures; secure; communications; lines; carrying; information; authorized user; spaced apart; /713/382/
Citation Formats
Strait, Robert S, Pearson, Peter K, and Sengupta, Sailes K. Method and system for normalizing biometric variations to authenticate users from a public database and that ensures individual biometric data privacy. United States: N. p., 2000.
Web.
Strait, Robert S, Pearson, Peter K, & Sengupta, Sailes K. Method and system for normalizing biometric variations to authenticate users from a public database and that ensures individual biometric data privacy. United States.
Strait, Robert S, Pearson, Peter K, and Sengupta, Sailes K. Sat .
"Method and system for normalizing biometric variations to authenticate users from a public database and that ensures individual biometric data privacy". United States. https://www.osti.gov/servlets/purl/872919.
@article{osti_872919,
title = {Method and system for normalizing biometric variations to authenticate users from a public database and that ensures individual biometric data privacy},
author = {Strait, Robert S and Pearson, Peter K and Sengupta, Sailes K},
abstractNote = {A password system comprises a set of codewords spaced apart from one another by a Hamming distance (HD) that exceeds twice the variability that can be projected for a series of biometric measurements for a particular individual and that is less than the HD that can be encountered between two individuals. To enroll an individual, a biometric measurement is taken and exclusive-ORed with a random codeword to produce a "reference value." To verify the individual later, a biometric measurement is taken and exclusive-ORed with the reference value to reproduce the original random codeword or its approximation. If the reproduced value is not a codeword, the nearest codeword to it is found, and the bits that were corrected to produce the codeword to it is found, and the bits that were corrected to produce the codeword are also toggled in the biometric measurement taken and the codeword generated during enrollment. The correction scheme can be implemented by any conventional error correction code such as Reed-Muller code R(m,n). In the implementation using a hand geometry device an R(2,5) code has been used in this invention. Such codeword and biometric measurement can then be used to see if the individual is an authorized user. Conventional Diffie-Hellman public key encryption schemes and hashing procedures can then be used to secure the communications lines carrying the biometric information and to secure the database of authorized users.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}