Mechanism to avoid expensive double-encryption in mobile...

Details Mechanism to avoid expensive double-encryption in mobile... Mechanism to avoid expensive double-encryption in mobile...

2005-08-22

2009-11-03

Barron, Jr., Gilberto (Department: 2432)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C380S248000

Reexamination Certificate

active

07613920

ABSTRACT:
A method for enabling a mobile node to transmit encrypted data over a path including a wireless link and an untrusted link, while avoiding double encryption on any link. The data on the end-to-end path is encrypted using an application specific security mechanism, or an L2 mechanism is used for encrypting the data on the wireless link as mandated by the wireless standards, and an application specific security mechanism is used for encrypting the data on the untrusted link. By avoiding redundant double encryption, the method of the invention results in optimizing the use of network resources in bandwidth-limited wireless networks and increases the life of the mobile node battery.

REFERENCES:
patent: 2002/0178365 (2002-11-01), Yamaguchi
patent: WO 03/029916 (2003-04-01), None
patent: WO 2005/117382 (2005-12-01), None
IEEE Standard Part 11: Wireless LAN Medium Access Control and Physical Layer Specifications, IEEE Computer Society, Jul. 23, 2004.
(Carneiro, G. et al.) “Cross-Layer Design in 4G Wireless Terminals”, IEEE Wireless Communications, IEEE Service Center, Piscataway, NJ, vol. 11, No. 2, Apr. 2004, pp. 7-13.

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