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:
Feb. 11, 2020
Filed:
Jul. 08, 2016
Brown University, Providence, RI (US);
Jeffrey Hoffstein, Providence, RI (US);
Joseph H. Silverman, Needham, MA (US);
BROWN UNIVERSITY, Providence, RI (US);
Abstract
Systems, methods, and computer-readable storage devices storing instructions for homomorphic encryption via finite ring isomorphisms are provided. An example method includes selecting a polynomial f(x) of exact degree n with small coefficients in a ring F[x] and selecting a polynomial h(y) of exact degree n in a ring F[y]. The method includes constructing an isomorphism from the ring F[x]/(f(x)) to the ring F[y]/(h(y)) and constructing an inverse isomorphism from the ring F[y]/(h(y)) to the ring F[x]/(f(x)). The method includes encrypting a message using said isomorphism from the ring F[x]/(f(x)) to the ring F[y]/(h(y)) and transmitting the encrypted message to a remote computer. The method also includes receiving one or more encrypted response messages from the remote computer based at least in part on the transmitted message and decrypting the one or more encrypted response messages.