Cryptology ePrint Archive: Report 2014/280

MSEA: Modified Symmetric Encryption Algorithm

Rajul Kumar and K. K. Mishra and Ashish Tripathi and Abhinav Tomar and Surendra Singh

Abstract: In this article, a new symmetric block cipher named MSEA is proposed. MSEA is based on ARX cryptographic design technique. MSEA is simple in nature due to the use of combinations of elementary operations like modular addition, bit-wise rotation and bit-wise XOR. In MSEA, plain text block, secret key, and number of encryption rounds are variable in size, while the size of cipher text is double of size of plain text. Data-dependant rotation is the most vital feature of MSEA through which the unpredictability of encrypted text is increasing. Key formation and encryption/decryption schemes of MSEA are significantly fast.

Category / Keywords: secret-key cryptography / Symmetric Key Cryptography, Data dependant rotations, Block Cipher, ARX Design Technique, MSEA

Date: received 22 Apr 2014

Contact author: raj35mit at gmail com

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Version: 20140424:222950 (All versions of this report)

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