I’m happy to share with you that my paper, Ensuring Information Security through 123-Bit Recursive Substitution of Bits through Prime-nonprime detection of sub-stream (RSBP) has earned a place in Journal of Scientific & Industrial Research (ISSN: 0022-4456) in vol. 68, July 2009, pp. 584-591.
The paper, comprising of a very small but significant part of my own doctoral work in the area of cryptology, is co-authored by J. K. Mandal, currently associated with Kalyani University as Professor of Department of Computer Science & Engineering and Dean of Engineering, Technology and Management, under whose supervision I did my doctoral work during 2000 – 2004. The initial version of the paper was communicated in June 2007. After a constant interactive peer review process, finally it was accepted for publication on 27 March 2009.
This paper presents a 123-bit private-key based block-cipher, which is capable of encrypting data files of up to 11 MB. It is formulated on the basis of base-10 value corresponding to a block of bits, which is to be checked if is prime or not. It results in an alteration of size for file being encrypted. Its executable performance is analyzed on the basis of execution time, graphical layout of frequency distribution of characters, and Chi square values for varying degrees of freedom. The proposed cipher, termed as RSBP, is found to be highly compatible with existing cryptosystems.
