Introduction Optimal Self-Dual Codes over GF(p) from Combinatorial Designs Encryption Schemes using Orthogonal Arrays Conclusion/Future Work High Efficiency Cryptographic Systems and Data Coding for Applications of Secure Information Transmission Dimitris E. Simos 1 Christos Koukouvinos 1 1 Department of Mathematics National Technical University of Athens, Greece Applied Computing Conference (ACC 2009) September 29, Vouliagmeni Beach, Athens, Greece Dimitris E. Simos and Christos Koukouvinos Results from Operational Program PENED 2003 ACC2009 1 / 30