Towards Security Enhancement using Block Cipher Algorithm with Transposition Techniques

In the age of internet, the security of information sharing has been increased exponentially, the authenticity of the data shared from one node to another is required a complex security mechanism which based on modern cryptography. Simplified DES is a block cipher algorithm which is used to encrypt data block by block using Feistel properties. In this proposed enhancement, the security of previous S-DES algorithm can be improved and strengthened by the use of transposition techniques which will enhance the secrecy of the data to be transmitted. In order to provide the glance of enhanced S-DES, mathematical implementation has been performed.