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. 17, 2004
Filed:
Aug. 13, 1999
Applicant:
Inventors:
Sandhya Sharma, Austin, TX (US);
Jagannathan Bharath, Eldorado Hills, CA (US);
David N. Larson, Austin, TX (US);
Assignee:
Legerity, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 ; H04K 1/00 ;
U.S. Cl.
CPC ...
H04L 9/00 ; H04K 1/00 ;
Abstract
A method and apparatus are provided for encrypting a stream of data transmitted within a frame. The method includes determining a first initialization state in a first preselected interval, and determining the first initialization state in a second preselected interval, wherein the second preselected interval is less than the first preselected interval. The method includes generating a key stream in response to determining the first initialization state in the second preselected interval, and encrypting at least one bit of the stream of data with at least one bit of the key stream.