Updating and Distributing Encryption Keys

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 20100042841
APP PUB NO 20100042841A1
SERIAL NO

12192809

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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System and method for providing secure communications is provided. Initially, an exchange protocol, such as a password-authenticated key exchange protocol, is used to create a shared secret. From the shared secret, two keys are created: a utilized key and a stored key. The utilized key is used to encrypt messages between nodes. When it is time to replace the utilized key to maintain security, the stored key is utilized to encrypt messages for generating/distributing a new shared secret. The new shared secret is then used to generate a new utilized key and a new stored key. This process may be repeated any number of times to maintain security.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LANTIQ DEUTSCHLAND GMBHNEUBIBERG627

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bry, Charles Unterhaching, DE 11 67
King, Neal Munich, DE 3 8
Oksman, Vladimir Morganville, US 75 350

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 5369705 Multi-party secure session/conference 140 1992
 
Crest Industries Corp. (1)
* 5222136 Encrypted communication system 65 1992
 
GEMATLO SA (1)
* 6839434 Method and apparatus for performing a key update using bidirectional validation 26 1999
 
SONY CORPORATION (1)
* 5513245 Automatic generation of private authentication key for wireless communication systems 72 1994
 
EMC IP HOLDING COMPANY LLC (1)
* 7725730 Cryptographic methods and apparatus for secure authentication 23 2002
 
LANTIQ DEUTSCHLAND GMBH (1)
* 2009/0296,924 KEY MANAGEMENT FOR COMMUNICATION NETWORKS 4 2008
 
BLACKBERRY LIMITED (1)
* 7885411 Key agreement and re-keying over a bidirectional communication path 4 2005
 
ALCATEL-LUCENT USA INC. (3)
* 6243811 Method for updating secret shared data in a wireless communication system 43 1998
* 6853729 Method and apparatus for performing a key update using update key 19 2000
* 2002/0194,478 Methods and apparatus for providing efficient password-authenticated key exchange 10 2001
 
Synacom Technology, Inc. (1)
* 5850445 Authentication key management system and method 47 1997
 
KINGLITE HOLDINGS INC. (1)
* 6226383 Cryptographic methods for remote authentication 125 1997
 
LG ELECTRONICS INC. (1)
* 7711352 Authentication of mobile station 3 2006
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
APPLE INC. (1)
8464061 Secure wireless link between two devices using probes 9 2010
 
FIRST DATA CORPORATION (1)
* 2013/0254,052 Systems and Methods for Facilitating Payments Via a Peer-to-Peer Protocol 20 2013
* Cited By Examiner