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:
May. 22, 2007
Filed:
Aug. 15, 2002
Rachad Alao, Sunnyvale, CA (US);
Rachad Alao, Sunnyvale, CA (US);
OpenTV, Inc., San Francisco, CA (US);
Abstract
An encrypted private session key for a private-key encryption method is quickly exchanged between a first device and a second device by computing encryption acceleration data using a public key for a public-key encryption method. The encryption acceleration data and the public key are sent to and used on the second device to encrypt a private session key exchanged between the first device and second device. The private-key encryption method is quickly initialized on the second device using encryption initialization data for the private-key encryption method computed on the first device using the exchanged private session key sent to the second device. The encryption acceleration data and encryption initialization data reduce a number of calculations needed on the second device to initialize and use the private-key encryption method, thereby reducing the overall time needed to create a cryptographically secure communications channel between the first device and the second device.