Cryptography Algorithm On Reconfigurable Hardware

Abstract

The Cryptographic Algorithm which is most widely used throughout the world for protecting information. Cryptography is the art of secret writing, followed by the guarantee to authenticate data and messages and protect the systems from valid attacks .It comprises of encryption and decryption operations each associated with a key which is supposed to be kept secret. We have implement RC6 Algorithm. Which is considered as a secured and elegant choice for AES. RC6 supports 32 bit and 64 bit processing. An eight step operation is used to encipher the 64 bit plain text block. The encrypted data is then decrypted by performing the reverse operations on the same.The hardware implementation of RC6 algorithm is done using VHDL Hardware Description Language. The choice of recongurable logic as a target platform for cryptographic algorithm implementations appears to be a practical solution for embedded systems and high-speed applications. Both efficient and cost effective solutions of cryptographic algorithms are desired on reconfigurable logic platform. The term"efficient" normally refers to "high speed" solutions.That implies careful considerations of cryptographic algorithm formulations, which often will lead to modify the traditional spefications of those algorithms. That also implies knowledge of the target device:device structure, device resources, and device suitability to the given task.