A novel technique to enhance the security in symmetric key cryptography
Cryptography is the science of keeping private information private and safe. In today’s high-tech information economy the need for privacy is far greater. In this paper we describe a common model for the enhancement of all the symmetric key algorithm like AES, DES and the TCE algorithm. The proposed method combines the symmetric key and sloppy key from which the new key is extracted. The sloppy key is changed for a short range of packet transmitted in the network.
