| Publisher | University of Surrey | ||
|---|---|---|---|
| Format | 69.3KB PDF | Date added | 31 Aug 2004 |
| Topics | GSM, Security Management, Mobile - Wireless Communications | ||
| Downloads | 112 | ||
This paper describes a real time prototype implementation of a system, which enables secure voice and data communication over the GSM voice channel. The security of GSM is not guaranteed especially over the core network. The proposed system modulates digital data, which may be encrypted onto speech-like waveforms. The modulated waveform is then transmitted over the GSM voice channel, which can be demodulated and decrypted at the receiver.
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