(1)Luong, T. T.; Cuong, N. N. DIRECT EXPONENT AND SCALAR MULTIPLICATION TRANSFORMATIONS OF MDS MATRICES: SOME GOOD CRYPTOGRAPHIC RESULTS FOR DYNAMIC DIFFUSION LAYERS OF BLOCK CIPHERS. <i>J. Comput. Sci. Cybern.</i> <b>2016</b>, <i>32</i>, 1-17.