2Yang R, WaIlace L, Burchett I. Teaching cryptology at all levels using CrypTool[C]//Proc of the 15th Colloquium for Information Systems Security Education Fairborn, 2011:13-15.
3Hick S, Esslinger B, Wacker A. Reducing the complexity of understanding cryptology using CrypTool[C] // Proc of the 10th International Conference on Education and Information Systems Technologies and Applications(EISTA 2012) : 2012 : 1.