Chaowen Chang

Security Strategy for Mobile Police Information System Using SMS

As the well-developed civilian wireless network infrastructure was built and the mobile devices becoming increasingly widespread, many mobile police information systems were established to provide information for police anywhere and anytime. The (SMS) Short Message Service is a widely used communication means in these applications. But lacking of security for SMS makes it unsuitable for transmitting these confidential data. In this paper, we discuss the security requirements of the mobile police information system firstly, and then propose a security strategy for mobile police information system to transmit information confidentially over the public mobile network using SMS as a bearer, and describe the authentication and communication protocol in detail. Lastly a performance comparison of the mobile police information system working in secure mode with that working in ordinary mode is given.

Police Security Communication over Public Cellular Network Infrastructure

The availability of a communication channel that could be everywhere accessible, possibly via wireless devices is a constant matter for the police force. The well-developed public cellular network infrastructure and widespread mobile device can provide with such features, but the lack of security makes it unsuitable for transmitting confidential data. In this paper, we propose a security framework for mobile police information system to transmit sensitive information confidentially over the public cellular network, and describe the authentication and communication protocol in detail. The test on a physical GSM based cellular network reveals that it is suitable for actual needs both in speed and security.