Jon Lech Johansen (born 31 July 1980) is a Norwegian computer programmer best known for his role in developing software that circumvented the Content Scramble System (CSS) protection on DVDs. His work contributed to the creation of the program DeCSS, which enabled playback of encrypted DVDs on operating systems that lacked licensed DVD decoding libraries.
Early Life and Education
Johansen was born in Norway and grew up in the city of Stavanger. He attended local schools before enrolling at the University of Bergen, where he studied computer science.
Career and Notable Work
In 1999, while still a teenager, Johansen authored a program that could decode CSS-encrypted DVD video streams. This software, later known as DeCSS, was released publicly and sparked extensive legal and technical debate about digital rights management (DRM) and the legality of circumvention tools. The release of DeCSS allowed users to play DVDs on Linux and other operating systems lacking official decoding support.
Following the DeCSS incident, Johansen continued to work on software development and security research. He has contributed to various open-source projects and has been involved in efforts related to digital privacy and freedom of information.
Legal Proceedings
In 2000, Johansen was charged in Norway under the Norwegian Penal Code for violating provisions related to the illegal distribution of circumvention tools. After a trial, he was acquitted in June 2003, with the court finding that his actions did not constitute a criminal offense under Norwegian law.
Later Activities
Johansen has remained active in the technology community, speaking at conferences and participating in discussions on software licensing, DRM, and internet freedom. He has also worked in roles related to cybersecurity and data protection.
Recognition
Johansen’s work on DeCSS has been referenced in academic literature on cryptography, DRM, and internet law. He is frequently cited as a prominent figure in the early 2000s debates over digital rights and software freedom.
