Abstract
In this article a new Cryptographic System based on Modular Arithmetic using block ciphers has been considered. The original data which is a stream of bits, is assumed to be divided into a number of blocks & each block contains m bits, where m is anyone of (3, 9, 27, 81, 243). The technique is based on the concept of data redundancy. A Number of redundant zeros will be appended at the MSB of bit stream to make total number of bits odd in each block. The binary addition has been made between first and the ultimate block taking modulus of addition as 2m. The sum replaces the content of ultimate block, first block remains unaltered to get the cipher text. In the next step the binary addition has been made between the ultimate block and the second block and the result replaces the second block. The technique proposed here involves operations on non-contiguous blocks (unless only two blocks are left which are adjacent to one another). In any two consecutive operations, one block is common, which makes the encryption unpredictable and thereby enhances security. The carry generated (if any) out of the MSB is discarded. The technique is applied on blocks with varying sizes from 3 to 3n. The modulo subtraction technique is adopted for decryption to get back the plain text.
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References
Guha, D., Chakraborty, R., Mandal, J.K.: An approach towards design and analysis of a new block cipher based cryptographic system using modular encryption and decryption technique (MEDT). Accepted and Presented in 52nd Annual convention of Computer Society of India (CSI 2017) as Indian National IT congress. Theme: “Social Transformation-Digital Way” Kolkata Chapter, 19–21 January 2018
Datta, A., Chakraborty, R., Mandal, J.K.: The CRYPSTER: a private key crypto system. Published in 2015 IEEE International Conference on Computer Graphics, Vision and Information Security (CGVIS), Bhubaneshwar, India, 2–3 November 2015. https://doi.org/10.1109/cgvis.2015.7449882
Chandra, S., Bhattacharya, S., Paira, S., Alam, S.S.: A study and analysis on symmetric cryptography. Published in 2014 IEEE International Conference on Science Engineering and Management Research (ICSEMR), Chenni, India, 27–29 November 2014. https://doi.org/10.1109/ICSEMR.2014.7043664
Guha, D., Basu, A.: An odd even block cipher based cryptosystem through modulo arithmetic technique (OEMAT). Publ. Int. J. Res. Eng. Technol. (IJRET) 2(11), 138–146 (2013). e-ISSN 2319-1163, p-ISSN 2321-7308
Guha, D., Chakraborty, R., Sinha, A.: A block cipher based cryptosystem through modified forward backward overlapped modulo arithmetic technique (MFBOMAT). Int. Organ. Sci. Res. J. Comput. Eng. (IOSRJCE) 13(1), 138–146 (2013). Article no. 22, e-ISSN 2278-0661, p-ISSN 2278-8727
Chakraborty, R., Guha, D., Mandal, J.K.: A block cipher based cryptosystem through forward backward overlapped modulo arithmetic technique (FBOMAT). Int. J. Eng. Sci. Res. J. (IJESR) 2(5), 349–360 (2012). Article no. 7, ISSN 2277-2685
Mandal, J.K., Sinha, S., Chakraborty, R.: A microprocessor-based block cipher through overlapped modulo arithmetic technique (OMAT). In: Proceedings of 12th International Conference of IEEE on Advanced Computing and Communications ADCOM-2004, Ahmedabad, India, 15–18 December, pp. 276–280 (2004)
Stallings, W.: Cryptography and Network Security: Principles and Practices, 3rd edn. Prentice Hall, Upper Saddle River (2003)
Kahate, A.: Cryptography and Network Security, 2nd edn. TMH, India (2008)
Forouzan, B.: Cryptography and Network Security, 4th edn. TMH, India (2010)
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Guha, D., Chakraborty, R. (2019). An Approach Towards Design and Analysis of a Non Contiguous Block Cipher Based Cryptographic System Using Modular Arithmetic Technique (NCBMAT). In: Mandal, J., Mukhopadhyay, S., Dutta, P., Dasgupta, K. (eds) Computational Intelligence, Communications, and Business Analytics. CICBA 2018. Communications in Computer and Information Science, vol 1031. Springer, Singapore. https://doi.org/10.1007/978-981-13-8581-0_31
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