ETRI Journal
- Volume 28 Issue 2
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- Pages.250-252
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- 2006
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- 1225-6463(pISSN)
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- 2233-7326(eISSN)
Signal-Dependent Chaotic-State-Modulated Digital Secure Communication
- Farooq, Omar (Department of Electronics Engineering, Aligarh Muslim University) ;
- Datta, Sekharjit (Department of Electronic and Electrical Engineering, Loughborough University)
- Received : 2005.09.12
- Published : 2006.04.30
Abstract
In this letter, a discrete state, discrete time chaotic pseudo random number generator (CPRNG) is presented for stream ciphering of text, audio, or image data. The CPRNG is treated as a finite state machine, and its state is modulated according to the input bit sequence of the signal to be encrypted. The modulated state sequence obtained can be transmitted as a spread spectrum or encrypted data.