Security Enhancement of TDMRC Encryption System by Increasing Randomness

Authors(2) :-Antu Annam Thomas, Varghese Paul

Time Dependant Multiple Random Cipher Code is a novel approach in cryptography. It follows a symmetric key method and a poly-alphabetic substitution coding system. TDMRC is ‘Mega Extended ASCII Code’. Complexities involved in TDMRC Code are Time Dependency, Poly Alphabetic Nature and use of Pseudo Random number generation technique for code generation. Key of TDMRC Code consists of three elements Master Key that is derived from Real Time Clock, Poly Alphabetic Coefficient(PAC), P, that decides the block size and P number of 4 digit subkeys. Randomness comes at three points in the algorithm while deciding PAC(P), while deciding P number of subkeys and while deciding P number of random series. Thus randomness can be improved by enhancing the random number generator Linear Congruential Generator(LCG) used in TDMRC.In this paper improved behaviour of Nested Linear Congruential Generator(NLCG) is coupled with TDMRC to improve the behaviour of TDMRC.

Authors and Affiliations

Antu Annam Thomas
Department of Computer Application, Mar Thoma College, Thiruvalla, Kerala, India
Varghese Paul
Department of Information Technology, Rajagiri School of Engineering and Technology, Rajagiri Valley, Kakkanad, Kerala, India

Cryptography; Data Security; True Random Number Generator; Pseudo random number generator; Linear Congruential Generator; Time Dependant Multiple Random Cipher Code(TDMRC); Nested Linear Congruential Generator (NLCG)

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Publication Details

Published in : Volume 2 | Issue 6 | November-December 2017
Date of Publication : 2017-12-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 422-426
Manuscript Number : CSEIT1726115
Publisher : Technoscience Academy

ISSN : 2456-3307

Cite This Article :

Antu Annam Thomas, Varghese Paul, "Security Enhancement of TDMRC Encryption System by Increasing Randomness", International Journal of Scientific Research in Computer Science, Engineering and Information Technology (IJSRCSEIT), ISSN : 2456-3307, Volume 2, Issue 6, pp.422-426, November-December-2017.
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