Methods to generate variable keys with noise burst bit in modern cryptosystem for achieving perfect security

Time variant key is a concept to generate new keys which vary during data transmission over time. Automatic Variable Key (AVK) is a time variant key generation technique. In this manuscript, we have proposed new key generation techniques with Noise Burst Bit based on already established variable key generation techniques. The proposed techniques provide maximum level of security as compared to those related existing techniques as the newly generated keys are more random. To verify the true randomness of the proposed techniques, we have tested the randomness of successive generated keys by using National Institute of Standards and Technology (NIST) statistical tool and proved that the generated keys are truly random.