A Novel Approach To Dynamic Key Cryptography (Dkc) With Delay Reduction Technique

Abstract

The security of information is one of the most important factors in communication since the concept of the Internet has become commercial. Attacks affects service to individual users, major Internet commerce sites, and even core Internet infrastructure services. Most of the encryption techniques emphasized on securing text or images. Traditional approaches like transpositions or substitutions for text security and image transformation techniques for image security have been used. The use of multimedia data like MMS and videos are being used on internet is growing day by day. Security of this multimedia data is main priority. Traditional methods do not completely ensure the safety of data from brute force methods, applied by spy-bots to secure multimedia data. To enhance security large key size and complex procedures have also been deployed. Large key sizes, multiple layer securities and complex calculations increased the level of encryption, but these techniques cause extra overhead for CPU. This paper proposes a novel symmetric key based encryption technique that uses multimedia file to generate dynamic keys to encrypt any type of multimedia data. A special encryption function has been used in this technique to select dynamic key randomly from the multimedia file.Key size, number of iterations and layers will depend on the data and multimedia file to be used for encryption. This technique ensures zero loss of user data and the multimedia file used to encrypt. Various performance metrics like Time, Throughput, Key Strength, Concealed, Durability, and Payload has been analyzed.