International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 1 - Number 17 |
Year of Publication: 2010 |
Authors: V.S.Shankar Sriram, Abhishek Kumar Maurya, G.Sahoo |
10.5120/367-554 |
V.S.Shankar Sriram, Abhishek Kumar Maurya, G.Sahoo . A Novel Multiple Key Block Ciphering Mechanism with Reduced Computational Overhead. International Journal of Computer Applications. 1, 17 ( February 2010), 25-30. DOI=10.5120/367-554
Cryptanalysis of symmetric key cryptography encourages large key size and complex operations to achieve message confidentiality. All these techniques pose computational overhead at both the sender & receiver ends. In this paper, we propose a simple yet powerful Block Cipher Multiple Key Symmetric Encryption (BCMKSE) algorithm for achieving both confidentiality & integrity with reduced computational and message overheads. Our algorithm changes the key after encrypting/decrypting a piece of the whole message. While the key changes during the whole message encryption/decryption process without increasing network traffic or message overhead. This methodology becomes faster as it uses the simplest operations like shift, XOR, addition and comparison operations.