WO2003100561A3 - System and method for providing wlan security through synchronized update and rotation of wep keys - Google Patents

System and method for providing wlan security through synchronized update and rotation of wep keys Download PDF

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Publication number
WO2003100561A3
WO2003100561A3 PCT/US2003/015964 US0315964W WO03100561A3 WO 2003100561 A3 WO2003100561 A3 WO 2003100561A3 US 0315964 W US0315964 W US 0315964W WO 03100561 A3 WO03100561 A3 WO 03100561A3
Authority
WO
WIPO (PCT)
Prior art keywords
wep
key
preferred embodiments
rotation
peer
Prior art date
Application number
PCT/US2003/015964
Other languages
French (fr)
Other versions
WO2003100561A2 (en
Inventor
Robert Whelan
Wagenen Lamar Van
Roy Morris
Gilbert Wellisch
Original Assignee
Wavelink Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wavelink Corp filed Critical Wavelink Corp
Priority to AU2003241543A priority Critical patent/AU2003241543A1/en
Priority to EP03731284A priority patent/EP1512244A4/en
Publication of WO2003100561A2 publication Critical patent/WO2003100561A2/en
Publication of WO2003100561A3 publication Critical patent/WO2003100561A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0457—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply dynamic encryption, e.g. stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/50—Secure pairing of devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/068—Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Abstract

A system and method are disclosed that overcome deficiencies of prior art IEEE 802.11 WEP key management schemes. Preferred embodiments of the present system and method update WEP keys (14) and rotate transmission key indices in a synchronized manner and on a frequent basis making it impractical for a hacker to gather sufficient network traffic using any one WEP key to decrypt that key and without disrupting communications. Preferred embodiments of the present system and method do not require changes in access point (22) or mobile unit hardware, radio drivers, or firmware and are therefore compatible with existing or legacy network infrastructure or components. The disclosed system and method may be used to facilitate secure communications between one or more access points and one or more mobile units (26) and/or groups of two or more mobile units engaging in peer-to-peer associations.
PCT/US2003/015964 2002-05-21 2003-05-21 System and method for providing wlan security through synchronized update and rotation of wep keys WO2003100561A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003241543A AU2003241543A1 (en) 2002-05-21 2003-05-21 System and method for providing wlan security through synchronized update and rotation of wep keys
EP03731284A EP1512244A4 (en) 2002-05-21 2003-05-21 System and method for providing wlan security through synchronized update and rotation of wep keys

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US38210702P 2002-05-21 2002-05-21
US60/382,107 2002-05-21
US39499902P 2002-07-10 2002-07-10
US60/394,999 2002-07-10
US10/300,324 2002-11-20
US10/300,324 US6965674B2 (en) 2002-05-21 2002-11-20 System and method for providing WLAN security through synchronized update and rotation of WEP keys

Publications (2)

Publication Number Publication Date
WO2003100561A2 WO2003100561A2 (en) 2003-12-04
WO2003100561A3 true WO2003100561A3 (en) 2004-02-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/015964 WO2003100561A2 (en) 2002-05-21 2003-05-21 System and method for providing wlan security through synchronized update and rotation of wep keys

Country Status (4)

Country Link
US (2) US6965674B2 (en)
EP (1) EP1512244A4 (en)
AU (1) AU2003241543A1 (en)
WO (1) WO2003100561A2 (en)

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US20030219129A1 (en) 2003-11-27
US6965674B2 (en) 2005-11-15
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AU2003241543A1 (en) 2003-12-12
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US7133526B2 (en) 2006-11-07
US20060078124A1 (en) 2006-04-13
WO2003100561A2 (en) 2003-12-04

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