Krishnamurthy G N and  V Ramaswamy,  Study of Effect of Removal of Shiftrows and Mixcolumns Stages of AES and AES-KDS on their Encryption Quality and Hence Security.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2011, vol. 50(2). 143 - 156
    [viewed 25 January 2022]. Available from: https://publications.waset.org/pdf/7309.