Vlsi Implementation of Optimized Encryption Algorithm with Effective Side Channel Attack Analysis

This work proposes a novel scheme for HILL cipher algorithm based data hiding in encrypted texts. In the first work, a content owner encrypts the original uncompressed text using an encryption key. Then, it may compress the least significant bits of the encrypted text using a data-hiding key to create a sparse space to accommodate some additional data. The communication processes are still used in many applications today. The first and historically most important application for communication satellites was in intercontinental long distance telephony. In previous the design of AES are held in various part implementation such as round key mechanism. In this we propose algorithm to improve the security of the system and reduce the power consumption by encryption and error correction method especially for side channel attacks. The proposed method Advanced encryption standard with Euclidean Geometry-Low Density Parity Check (EG-LDPC) method. Here hill cipher is used for the key generation. With an encrypted text containing additional data, if the recipient has the hided key, he can get the additional data though he does not know about the full content. If the recipient has the encryption key, he can decode or decrypt the received data to obtain the same text similar to the original information, but cannot get the additional data.