Securely propagating authentication in an ensemble of...

Details Securely propagating authentication in an ensemble of... Securely propagating authentication in an ensemble of...

2005-07-29

2009-11-17

Colin, Carl (Department: 2433)

Information security

Access control or authentication

Network

C726S002000, C726S004000, C713S168000

Reexamination Certificate

active

07620978

ABSTRACT:
A single sign-on technique suitable for a network of devices with no centralized device or synchronized clocks such as a personal area network (PAN) is described. Responsive to a user signing-on to a first device via its user interface, the first device securely propagates authentication of the user for enabling one or more other devices in the network, each for a near-expiry time period measured from the device specific time of the respective device; thus providing for expiration of authentication to minimize how long data is vulnerable in case a device is lost or stolen. Described also is a device enabling protocol using authentication accumulation to secure against threats from a rogue device pretending to be another device in the network such as in man-in-the-middle and replay attacks.

REFERENCES:
patent: 6351468 (2002-02-01), LaRowe et al.
patent: 6804232 (2004-10-01), Donaghey
patent: 7219154 (2007-05-01), Blakley et al.

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