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An Impregnable Block Cipher Generation using Modern Transposition and Substitution Algorithms with a large Key, Modular Arithmetic and Integral Functions
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 46 - Number 4 |
| Year of Publication: 2012 |
| Authors: S.udaya Kumar, Ravindra Babu Kallam, A.vinaya Babu |
10.5120/6898-9250
|
S.udaya Kumar, Ravindra Babu Kallam, A.vinaya Babu . An Impregnable Block Cipher Generation using Modern Transposition and Substitution Algorithms with a large Key, Modular Arithmetic and Integral Functions. International Journal of Computer Applications. 46, 4 ( May 2012), 36-43. DOI=10.5120/6898-9250
Abstract
In this research, we have invented a method to generate the secure block cipher using modern transposition and substitution with 128bit key, modular and integral functions. This method supports an input in the form of ASCII, extended ASCII characters, images and diagrams etc. Initially, the algorithm converts the given input in to ANSI characters using rich text format, then it performs 16rounds of permutations with internal functions and finally it carryout color substitution. The functions used in this algorithm alter the plain text in various ways before it takes the shape of cipher text. A brief introduction about the tree data structures and its traversal methods has explained. The process of encryption, decryption and the sub key generation algorithms are explained with example. The avalanche effect and the cryptanalysis inspected in this investigation evidently indicate that the cipher is potential one.
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