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Authenticating concealed private data while maintaining concealment

United States Patent

7,237,115
June 26, 2007
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A method of and system for authenticating concealed and statistically varying multi-dimensional data comprising: acquiring an initial measurement of an item, wherein the initial measurement is subject to measurement error; applying a transformation to the initial measurement to generate reference template data; acquiring a subsequent measurement of an item, wherein the subsequent measurement is subject to measurement error; applying the transformation to the subsequent measurement; and calculating a Euclidean distance metric between the transformed measurements; wherein the calculated Euclidean distance metric is identical to a Euclidean distance metric between the measurement prior to transformation.
Thomas; Edward V. (Albuquerque, NM), Draelos; Timothy J. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
09/ 964,221
September 26, 2001
FEDERALLY SPONSORED RESEARCH The Government has rights to this invention pursuant to Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy.