Implementation of Efficient Security Algorithm

The main objective of this paper is to develop and implement an efficient AES algorithm using an enhanced S-box (substitutional box). The S-box in AES can be implemented using LUT and the affine transformation technique. To optimize the area and latency in this paper, the additive multiplication inverse method in affine transformation is proposed. The results of the proposed affine transformation and the conventional affine transformation are compared. From the comparison results It is observed that a 16.6% reduction in area and 14.28 % improvement in speed is obtained in AES encryption process using proposed affine transformation.