Two New Schemes to Generate Automatic Variable Key (AVK) to achieve the Perfect Security in Insecure Communication Channel
Manash Pratim Dutta, Subhasish Banerjee, Chandan Tilak Bhunia · 2015
The confidentiality of shared information is an issue of emergent research. Restoring confidentiality brings more complications and difficulties to provide such securities over insecure communication channels. To overcome those difficulties, various mechanisms or encryption techniques have been proposed by many researchers. However, the most common requirement in all such mechanisms is that key should be secured. One solution to tackle this problem is to make the key large enough so that the cipher text only attack like brute force attack, frequency attack and differential frequency attack become infeasible. In light of this, and the practical difficulty for managing such long keys; the key with variable in nature is highly enforced to provide the perfect security in which Automatic Variable Key (AVK) is one of the novel approaches as it has been experimented so far. In this paper, we have proposed two new schemes to generate the AVKs and shown their contributions to provide the security in cryptography by various experiments.