Luong, T. T., Phuong, T. M., Long, N. V. and Khanh, N. N. (2025) “Enhancing SPN ciphers: Dynamic substitution-key addition layers via binary block circulant matrices”, Journal of Science and Technology on Information security, 1(24), pp. 12-29. doi: 10.54654/isj.v1i24.1100.