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Research Journal of Science and Technology
Year : 2017, Volume : 9, Issue : 4
First page : ( 589) Last page : ( 591)
Print ISSN : 0975-4393. Online ISSN : 2349-2988.
Article DOI : 10.5958/2349-2988.2017.00099.7

Information security using Z transforms and finite state machine

Srilakshmi Sirivaram*

Lecturer, Department of Mathematics, J.N.T.U. (A) College of Engineering, Ananthapuramu-A.P., India, 515001

*Corresponding Author E-mail: sirivaram_lakshmi@yahoo.com

Online published on 12 June, 2018.

Abstract

Information security is the most burning topic in the field of computer science and engineering. Encoding is a very easy process but decoding is not so easy unless we know the apt key. Key management is very important in cryptology. Generating dynamic keys is most essential now a days and also the cipher text.

In mathematics the Z transforms converts discrete data sequence, which is real or complex in to complex domain. It is useful in many areas such as digital Signal processing, control theory, economics etc.

Automata theory is the study o. abstract computing devices or machines. In computer science we find many examples of finite state system and the theory of finite state systems, as a useful design tool for these systems.

In the present paper an innovative technique for encrypting and hiding the data is proposed based on finite state machines and Z transformation. The efficacy of the proposed method is analysed, and the analysis shows an improved cryptographic protection in digital signals.

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Keywords

Cryptography, finite state machine, Moore machine, Z Transformation of discrete signal and modular arithmetic.

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