US Patent Application No: 2010/0042,841

Number of patents in Portfolio can not be more than 2000

Updating and Distributing Encryption Keys

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
LANTIQ DEUTSCHLAND GMBHNEUBIBERG589

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bry, Charles Unterhaching, DE 17 41
King, Neal Munchen, DE 5 5
Oksman, Vladimir Morganville, NJ 99 198

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ALCATEL-LUCENT USA INC. (3)
* 6,243,811 Method for updating secret shared data in a wireless communication system 38 1998
* 6,839,434 Method and apparatus for performing a key update using bidirectional validation 23 1999
* 6,853,729 Method and apparatus for performing a key update using update key 16 2000
 
BLACKBERRY LIMITED (1)
* 7,885,411 Key agreement and re-keying over a bidirectional communication path 1 2005
 
Crest Industries, Inc. (1)
* 5,222,136 Encrypted communication system 62 1992
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 5,369,705 Multi-party secure session/conference 129 1992
 
LG ELECTRONICS INC. (1)
* 7,711,352 Authentication of mobile station 2 2006
 
SONY ELECTRONICS INC. (1)
* 5,513,245 Automatic generation of private authentication key for wireless communication systems 66 1994
 
Synacom Technology, Inc. (1)
* 5,850,445 Authentication key management system and method 41 1997
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
APPLE INC. (1)
8,464,061 Secure wireless link between two devices using probes 1 2010
* Cited By Examiner