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. 27, 2012
Filed:
Jul. 31, 2008
Richard J. Cardone, Austin, TX (US);
Michael Austin Halcrow, Pflugerville, TX (US);
Richard J. Cardone, Austin, TX (US);
Michael Austin Halcrow, Pflugerville, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Verifying ballots that are cast in an election is provided. A mutual attestation procedure is executed between a plurality of devices communicating in a voting system via a network. A number of certificates are published. Each certificate corresponds to one of the plurality of devices and contains a public key and reference election configuration data defining a reference machine execution environment state of its corresponding device. A voter authorization token is generated for each voter. Voting results are generated in response to using a given voter authorization token to cast a given ballot using a specified voting device. Current election configuration data is generated that defines a current machine execution environment state of the specified voting device when the given ballot was cast. The current election configuration data is compared with the reference configuration data to verify a valid machine execution environment state of the specified voting device.