Frame Based Symmetric Key Cryptography

摘要

There are huge numbers of algorithms available in symmetry key block cipher. All these algorithms have been used eithercomplicated keys to produce cipher text from plain text or a complicated algorithms for it. The level of security of allalgorithms is dependent on either number of iterations or length of keys. In this paper, a symmetry key block cipheralgorithm has been proposed to encrypt plain text into cipher text or vice versa using a frame set. A comparative study havebeen made with RSA, DES, IDEA, BAM and other algorithms with Chi-square value, frequency distribution, bit ratio tocheck the security level of proposed algorithm. Finally, a comparison has been made for time complexity for encryption ofplain text and decryption from cipher text with the well-known existing algorithms.