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:
Nov. 08, 2016
Filed:
Apr. 14, 2015
Hrl Laboratories, Llc, Malibu, CA (US);
Karim El Defrawy, Santa Monica, CA (US);
Joshua D. Lampkins, Gardena, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
Described is system for generation of elliptic curve digital signature algorithm (ECDSA) based digital signatures. A Secret-Share protocol is initialized between a client and a set of servers to share a set of shares of a private key s among the set of servers. The set of servers initializes a protocol to generate a digital signature on a message using the set of shares of the private key s without reconstructing or revealing the private key s. The set of servers periodically initializes a Secret-Redistribute protocol on each share of the private key s to re-randomize the set of shares. A Secret-Open protocol is initialized to reveal the private key s to an intended recipient, wherein the private key s is used to compute the digital signature.