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. 19, 2014
Filed:
Jul. 26, 2004
Ingo Kuehn, Dresden, DE;
Uwe Eckhardt, Dresden, DE;
Axel Wachtler, Meissen, DE;
Falk Tischer, Riesa, DE;
Ingo Kuehn, Dresden, DE;
Uwe Eckhardt, Dresden, DE;
Axel Wachtler, Meissen, DE;
Falk Tischer, Riesa, DE;
GLOBALFOUNDRIES Inc., Grand Cayman, KY;
Abstract
A ciphering key management technique for use in a WLAN receiver is provided where a hash table is stored that has a first and a second table portion. The first table portion stores transmitter address data and the second table portion stores at least one cipher key. It is determined whether a transmitter address matches transmitter address data in the first table portion, and if so, a corresponding cipher key stored in the second table portion is determined for use in decrypting the received data. The hash table technique allows for a fast search for the correct cipher key. Embodiments are described that allow for dynamically adding and removing keys without blocking the search.