Multilevel Data Encryption with Compressive Approach Using Asymmetric Key Technique-Survey

Now a days transferring of texts, documents over the internet are the tasks in common. The transferred text must be cryptographically protected so that cannot be accessed by the invaders. In the communication medium, protected data uses cryptographic techniques and random bit generators. Once the key is generated by the random generators, how well we can secure and transmit fast in the network plays a vital role by applying appropriate algorithm. To fulfill the needs for secure and lightweight data transmission approach, we propose a new Data transmission Technique, which uses compressed bit stream of information as a mean of communications. This technique reduces information loss, and bandwidth requirement. It maximizes the data security as it nullifies information notching, and prevents the attempt of modification by unauthorized third party using multilevel Asymmetric key approach.