The Information Security Letters (ISL) is online scholarly journal. The ISL is designed to allow readers to obtain the most state of the art in a number of focusing areas related to the foundations of cryptography, system and network security, and security applications. The aim of ISL is to allow rapid dissemination of interesting results in the field of information security and its applications. The ISL is published quarterly, and consists of regular, invited, and selected papers from conferences/workshops. The papers are strictly peer-reviewed within two months. Submissions are encouraged both on theoretical work and on experimental work.