Challenge de sécurité informatique abordant des domaines variés: Hacking, Cracking, Wargame, Forensic, Cryptographie, Stéganographie et Programmation. Disponible en Français et en Anglais.
Valhalla is a place for sharing knowledge and ideas. Valhalla allows
users to submit code, as well as science, technology, and
engineering-oriented news and articles, and we also affiliate with
other IT-related sites. We provide a biography and tags for each
affiliate so users can easily find the content they are interested in.
Valhalla also has an assortment of fun challenges intended to help
users learn more about programming concepts, computer science,
engineering, mathematics, and more.