I. Chionis, M. Chroni, and S.D. Nikolopoulos, A dynamic watermarking model for embedding reducible permutation graphs into software, 10th International Conference on Security and Cryptography (SECRYPT'13), SciTePress Digital Library, 2013

I. Chionis, M. Chroni, and S.D. Nikolopoulos, Watermarking Java application programs using the WaterRpg dynamic model, 14th International Conference on Computer Systems and Technologies (CompSysTech'13), ACM ICPS 000, 2013 (Best Paper Award, at section Data Encoding and Cryptography)

I. Chionis, M. Chroni, and S.D. Nikolopoulos, Evaluating the WaterRpg software watermarking model on Java application programs, 17th Panhellenic Conference on Informatics (PCI'13), ACM ICPS 000, 2013

I. Chionis, S.D. Nikolopoulos, and I. Polenakis, A survey on algorithmic techniques for malware detection, 2th International Symposium on Computing in Informatics and Mathematics (ISCIM'13), 2013

I. Chionis, M. Chroni, A. Fylakis, and S.D. Nikolopoulos, Software, image and audio watermarking algorithmic techniques, 2th International Symposium on Computing in Informatics and Mathematics (ISCIM'13), 2013 (Best Student Paper Award)