International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
In this technical paper a session based symmetric key cryptographic technique, termed as SBSKCT and has been proposed. This proposed technique is very secure and suitable for encryption of large files of any type. SBSKCT considers the plain text as a string with finite no. of binary bits. This input binary string is broken down into blocks of various sizes. The encrypted binary string is formed by shifting the bit position of each block by a certain values for a certain number of times and from this string cipher text is formed.