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:
Mar. 18, 2014
Filed:
Dec. 17, 2010
Kristin E. Lauter, Redmond, WA (US);
Elisabeth Malmskog, Fort Collins, CO (US);
Michael Naehrig, Stolberg, DE;
Vinod Vaikuntanathan, Seattle, WA (US);
Kristin E. Lauter, Redmond, WA (US);
Elisabeth Malmskog, Fort Collins, CO (US);
Michael Naehrig, Stolberg, DE;
Vinod Vaikuntanathan, Seattle, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Representations of polynomials a, s, t, eand ecan be provided. Values of coefficients of the polynomials can be limited, and can be computed using randomization techniques. A verification key can be generated to include representations of polynomials a, b, and c. Computation of b can include computing a product using a and s, and adding e. Computation of c can include computing a product using a and t, and adding e. A signing key can represent s and t. The signing key can be used to produce a message signature that can represent a sum of t and a product of s and m, with m being derived from a message to be signed. The verification key can be used to verify the signature by checking coefficient sizes of a polynomial represented by the signature, and of a checking polynomial derived from the verification key and the signature.