The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2017
Filed:
Feb. 10, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Ryota Kamakari, Toshima, JP;
Takeshi Shimoyama, Shinagawa, JP;
Hiroshi Tsuda, Fujisawa, JP;
Yoshinori Yaginuma, Kokubunji, JP;
Avradip Mandal, San Jose, CA (US);
Arnab Roy, Santa Clara, CA (US);
Hart Montgomery, Redwood City, CA (US);
Toshiyuki Ishiguro, Ota, JP;
Kouhei Shigeta, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A method includes receiving biometric data, the biometric data non-uniformly distributed and processing the biometric data to a level of randomness as a plaintext vector, the level of randomness associated with a security level. The method also includes encrypting the plaintext vector using a relational linearity encryption scheme to generate a linearity ciphertext representative of the plaintext vector, encrypting the plaintext vector using a relational proximity encryption scheme to generate a proximity ciphertext representative of the plaintext vector, and communicating the linearity ciphertext and the proximity ciphertext to an authentication server. The method further includes receiving from the authentication server an authentication signal for the security level indicative of a linearity relationship between the linearity ciphertext and a registration linearity ciphertext discovered using a relational linearity key and of a proximity relationship between the proximity ciphertext and a registration proximity ciphertext detected using a relational proximity key.