RANDOMIZATION-BASED BLOCK CIPHER WITH KEY-MAPPED S-BOX SELECTION


RANDOMIZATION-BASED BLOCK CIPHER WITH KEY-MAPPED S-BOX SELECTION

Krishna Prasad Nandeti 1 , Dr. Anshuman Singh 2 and Dr. Mahmoud Yousef 3

 1Graduate Assistant, University of Central Missouri, Warrensburg, USA 2Asst. Professor of Computer Science, University of Central Missouri, Warrensburg, USA 3 Professor of Computer Science, University of Central Missouri, Warrensburg, USA

ABSTRACT

This paper proposes a new system of Substitution-Permutation network along with Randomization Expansion of 240 bits of input data. System uses 16 S-Boxes which are selected randomly based on the subkey values throughout 64 rounds of substitution steps. 64 sub-keys are generated during the SubstitutionPermutation process. The middletext is transposed based on decimal value of the sub-key generated during the each round. A CBC mode is the best associated with this system.

KEYWORDS

 Middletext, Randomization, SP-network, S-Box, CBC

SOURCE URL

https://wireilla.com/papers/ijcis/V7N1/7117ijcis01.pdf

MORE DETAILS

https://wireilla.com/ijcis/index.html






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