Due to increasing importance of digital communications, the area of research in coding theory and cryptography is broad and fast developing.  In this book  there are prented some of the latest research developments in the area.  The book grew as a combination of two research conferences organized in the area: the Vlora Conference in Coding Theory and cryptography held in Vlora, Albania during May 26-27, 2007, and the special session on coding theory as part of the Applications of Computer Algebra. conference, held during July, 10-22, Oakland University, Rochester MI USA