期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2015
卷号：73
期号：1
出版社：Journal of Theoretical and Applied
摘要：Evolvement in technology has resulted in a large number of new proposals done on Rijndael block cipher. Even though there are many developments done on the enhancement of block cipher algorithm, the industry still requires more as long as security requirements are met. In this paper, we present a new approach called TShiftColumn transformation which is added to the original Rijndael key expansion algorithm to improve security requirements. This new approach follows the green cryptography concept through recycling the existing algorithm by enhancing and improving its security requirements. The TShiftColumn transformation has been tested with two types of tests for security measurement; confusion and diffusion tests. This new transformation has passed the security requirement with better result compared to original Rijndael key expansion algorithm.
