FRAGMENTED CAESAR CIPHER

Abstract

In this study, we define a cipher method that is called fragmented Caesar cipher method that based on the basic logic of Caesar cipher. This new method has more possibility then the classical Caesar cipher because of the fragmented alphabet is used to cipher. We then construct a mathematical modeling and make a computer programs of the method.

Keywords

• Caesar cipher,encryption,decryption,plaintext,ciphertext,fragmented Caesar ci- pher

References

1. [1] Y. Aydo¸gan, Multi Fragmented Caesar Cipher Method and its Applications (In Turkish), MSc Thesis, Gaziosmanpasa University, Graduate School of Natural and Applied Science, 2014.
2. [2] S. Dey, Nath and A. J. Nath, An Integrated Symmetric Key Cryptographic Method - Amalgamation of TTJSA Algorithm , Advanced Caesar Cipher Algo- rithm, Bit Rotation and Reversal Method: SJA Algorithm, I. J. Modern Edu. and Comp. Sci., 5 (2012), 1-9.
3. [3] J. Ho®stein, J. Pipher and J. H. Silverman, An Introduction to Mathematical Cryptograph, Springer-Newyork, 2008.
4. [4] A. Mishra, Enhancing Security of Caesar Cipher Using Di®erent Methods, I. J. of Res. in Eng. and Tech., 2(9) (2013), 954-959.
5. [5] O. E. Omolara, A. I. Oludare and S. E. Abdulahi, Developing a Modi¯ed Hybrid Caesar Cipher and Vigenere Cipher for Secure Data Communication, Comp. Eng. and I. Syst., 5(5) (2014).
6. [6] C. Paar, J. Pelzl, Understanding Cryptograph, Springer-Verlag, 2010.
7. [7] P. Patni, A Poly-alphabetic Approach to Caesar Cipher Algorithm, I. J. of Comp. Sci. and Info. Tech., 4(6) (2013), 954-959.
8. [8] P. Patni, Implementation and Result Analysis of Polyalphabetic Approach to Caesar Cipher, IOSR J. of Com. Eng., 16(4) (2014), 100-106.

9. [9] A. Sinkov, Elementary Cryptanalysis { A Mathematical Approach, New Math- ematical Library, No. 22, Mathematical Association of America, 1966.