Cryptographic techniques for a communications network
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United States of America Patent
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Nov 3, 2009
Grant Date -
Feb 7, 2008
app pub date -
Sep 5, 2006
filing date -
Nov 15, 1999
priority date (Note) -
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Abstract
Techniques are described for enabling authentication and/or key agreement between communications network stations and service networks. The techniques described include the negotiation and use of a cryptographic primitive shared between a service network and a home environment of a station. The techniques described also feature a key usage indicator, such as a sequence number, maintained by the service network and a station. Comparison of the key usage indicators can, for example, permit efficient authentication of the service network.
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