Hrl Laboratories, LLC

Daniel C Apon

Karim El Defrawy

Jonathan Katz

Chongwon Cho

Described is a system for biometric authentication. The system converts biometric data into a cryptographic key r' using a reusable fuzzy extractor process having an underlying hash function modeling a random oracle model. The system allows access to secured services when a comparison of r&#x2032; to a previously computed cryptographic key r shows a match.

Practical reusable fuzzy extractor based on the learning-with-error assumption and random oracle

Described is a system for biometric based security. The system converts biometric data into a cryptographic key using a reusable fuzzy extractor process. The reusable fuzzy extractor process comprises a generation process and a reconstruction process. The generation process takes as input a public parameter and a first biometric input and outputs a public helper string and a first random string. The reconstruction process takes as input a public helper string and a second biometric input and outputs a second random string. The reusable fuzzy extractor process is reusable such that multiple public helper strings do not reveal any information about the first biometric input and the first random string. Secured data is unlocked by applying the cryptographic key for biometric security of access to secured data.

Reusable fuzzy extractor based on the learning-with-error assumption secure against quantum attacks

Described is a system for obfuscating a computer program. Sensitive data of an unprotected computer program is received as input. A random oracle is used to algebraically hide a set of polynomial-size point functions representing the sensitive data. The system outputs a set of obfuscated instructions internally hiding the sensitive data. The set of obfuscated instructions are used to transform the unprotected computer program into a protected, obfuscated computer program that is accepting of the set of polynomial-size point functions. The obfuscated computer program is written to a non-volatile computer-readable medium.

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College Park, MD, United States of America

Daniel C Apon