%0 Journal Article %T Frame Based Symmetric Key Cryptography %A Uttam Kr. Mondal %A Satyendra Nath Mandal %A J. PalChoudhury %A J.K.Mandal %J International Journal of Advanced Networking and Applications %D 2011 %I Eswar Publications %X There are huge numbers of algorithms available in symmetry key block cipher. All these algorithms have been used either complicated keys to produce cipher text from plain text or a complicated algorithms for it. The level of security of all algorithms is dependent on either number of iterations or length of keys. In this paper, a symmetry key block cipher algorithm has been proposed to encrypt plain text into cipher text or vice versa using a frame set. A comparative study have been made with RSA, DES, IDEA, BAM and other algorithms with Chi-square value, frequency distribution, bit ratio to check the security level of proposed algorithm. Finally, a comparison has been made for time complexity for encryption of plain text and decryption from cipher text with the well-known existing algorithms. %K cryptography %K plain text %K cipher text %K symmetric key algorithm %K chi - square and frequency distributions %U http://www.ijana.in/papers/10.6.pdf