Energy/security scalable mobile cryptosystem

Time-sensitive mobile commerce is vulnerable to message authentication delays. Significant power consumption incurred by cryptography is another limiting factor of most mobile devices. In this paper, we present a scalable mobile cryptosystem, which installs a group key and an elliptic curve private/public key pair in each device to enable both symmetric key and public key cryptography. We propose scalable key establishment protocols and secure routing protocols with scalable authentication schemes to make tradeoffs between security and energy, according to different mobile applications. This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that such copying is by permission of Mitsubishi Electric Research Laboratories, Inc.; an acknowledgment of the authors and individual contributions to the work; and all applicable portions of the copyright notice. Copying, reproduction, or republishing for any other purpose shall require a license with payment of fee to Mitsubishi Electric Research Laboratories, Inc. All rights reserved. Copyright c ©Mitsubishi Electric Research Laboratories, Inc., 2004 201 Broadway, Cambridge, Massachusetts 02139 Publication History: 1. First printing, TR-2003-79, February 2004 Energy/Security Scalable Mobile Cryptosystem Qiang Huang, Hisashi Kobayashi and Bede Liu Department of Electrical Engineering Princeton University Princeton, NJ 08544, USA Daqing Gu and Jinyun Zhang Mitsubishi Electric Research Laboratories 201 Broadway Cambridge, MA 02139, USA Abstract—Time-sensitive mobile commerce is vulnerable to message authentication delays. Significant power consumption incurred by cryptography is another limiting factor of most mobile devices. In this paper, we present a scalable mobile cryptosystem, which installs a group key and an elliptic curve private/public key pair in each device to enable both symmetric key and public key cryptography. We propose scalable key establishment protocols and secure routing protocols with scalable authentication schemes to make tradeoffs between security and energy, according to different mobile applications.Time-sensitive mobile commerce is vulnerable to message authentication delays. Significant power consumption incurred by cryptography is another limiting factor of most mobile devices. In this paper, we present a scalable mobile cryptosystem, which installs a group key and an elliptic curve private/public key pair in each device to enable both symmetric key and public key cryptography. We propose scalable key establishment protocols and secure routing protocols with scalable authentication schemes to make tradeoffs between security and energy, according to different mobile applications.