Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2008-01-29
2008-01-29
Sheikh, Ayaz (Department: 2131)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S169000, C713S171000, C726S009000, C726S020000, C380S270000, C380S286000
Reexamination Certificate
active
10964755
ABSTRACT:
An authentication and mass subscriber management technique is provided by employing a key table derived as a subset of a larger key pool, a network edge device, and authentication tokens attached on both the network edge device and on a subscriber's computing device. The network edge device and subscriber's computing device are provided with secure, tamper-resistant network keys for encrypting all transactions across the wired/wireless segment between supplicant (subscriber) and authenticator (network edge device). In an embodiment of the invention, a secure, secret user key is shared between a number of subscribers based upon commonalities between serial numbers of those subscribers' tokens. In another embodiment of the invention, a unique session key is generated for each subscriber even though multiple subscribers connected to the same network connection point might have identical pre-stored secret keys.
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Chen Shin-Hon
Hunton & Williams LLP
Koolspan, Inc.
Sheikh Ayaz
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