End-to-end security mechanisms for SMS

Authors:
Jing-Shyang Hwu;Shih-Feng Hsu;Yi-Bing Lin;Rong-Jaye Chen
Affiliations:
Department of Computer Science and Information Engineering, National Chiao Tung University, Hsinchu County, Taiwan.;Department of Computer Science and Information Engineering, National Chiao Tung University, Hsinchu County, Taiwan.;Department of Computer Science and Information Engineering, National Chiao Tung University, Hsinchu County, Taiwan.;Department of Computer Science and Information Engineering, National Chiao Tung University, Hsinchu County, Taiwan
Venue:
International Journal of Security and Networks
Year:
2006

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Abstract

In the mobile communication systems, security (encryption) offered by the network operator applies only on the wireless link. Data delivered through the mobile core network may not be protected. Existing end-to-end security mechanisms are provided at application level and typically based on public key cryptosystem. This paper introduces two encryption mechanisms based on the Rivest-Shamir-Adleman (RSA) scheme and the Identity-based (ID-based) scheme to provide end-to-end security for Short Message Service (SMS). We implement these two mechanisms over the standard SMS network architecture and estimate the encryption overhead. Our study indicates that the ID-based mechanism has advantages over the RSA mechanism in key distribution and scalability of increasing security level for mobile service.