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:
Aug. 24, 2010
Filed:
Jun. 24, 2005
Louis a Gasparini, San Mateo, CA (US);
William H Harris, Woodside, CA (US);
Louis A Gasparini, San Mateo, CA (US);
William H Harris, Woodside, CA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A system and method authenticates an e-mail message containing a code that may be sent as part of an advertising campaign. The code is a hashed hash result of a combination of the e-mail address to which the message was sent and a pass phrase for the campaign, along with an identifier of the campaign. To authenticate the message, the user supplies the user's e-mail address and the code and the system and method parses the code to identify the campaign identifier and hashed hash result, looks up the pass phrase using the campaign identifier, hashes the campaign identifier and e-mail address and hashes that hash result. If the hashed hash results match, the system and method indicates the message is authentic and otherwise, indicates the message is not authentic.