Document Zbl 1251.94013

A speech encryption using fractional chaotic systems. (English) Zbl 1251.94013

Nonlinear Dyn. 65, No. 1-2, 103-108 (2011).

Summary: In this paper, a new speech encryption using fractional chaotic systems is presented. A two-channel transmission method is used where the original speech is encoded using a nonlinear function of the chaotic states. Conditions for synchronization between fractional chaotic systems through one variable have been investigated theoretically by using the Laplace transform. The keys, key space, key selection rules, and sensitivity to keys are discussed in detail. Results show that the original speech is well masked in the ciphertexts yet recovered faithfully and efficiently by the present schemes.

Cited in 33 Documents

MSC:

94A12	Signal theory (characterization, reconstruction, filtering, etc.)
68P25	Data encryption (aspects in computer science)

Keywords:

speech encryption; fractional chaotic systems; synchronization

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References:

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