The aim of the International Workshop on Coding and Cryptology 2007 was to bring together experts from coding theory, cryptology and their related areas for a fruitful exchange of ideas in order to stimulate further research and collaboration among mathematicians, computer scientists, practical cryptographers and engineers. This post-proceedings of the workshop consists of 20 selected papers on a wide range of topics in coding theory and cryptology, including theory, techniques, applications, and practical experiences. They cover significant advances in these areas and contain very useful surveys.