Nagra France is a company which develops and markets the Mediaguard

Mediaguard

Mediaguard is a conditional access system for digital television developed by SECA , company renamed to Canal+ Technologies SA , a subsidiary of Canal+ Group, sold to Thomson...

 conditional access system for digital television

Digital television

Digital television is the transmission of audio and video by digital signals, in contrast to the analog signals used by analog TV...

. It is a subsidiary of the Kudelski

Kudelski

Kudelski may refer to:people* André Kudelski, CEO Kudelski Group* Bob Kudelski, Ice Hockey Player* Carl Matthias Kudelski , composer* Stefan Kudelski, Polish audio engineercompany* Kudelski Group, Swiss Technology Company...

 Group (which also develops Nagravision

Nagravision

Nagravision is a company of the Kudelski Group that develops conditional access systems for cable and satellite television. The name is also used for their main products, the Nagravision encryption systems.-Digital systems:...

).

History

Nagra France was previously known as SECA or Société Européenne de Contrôle d'Accès. It was co-owned by Canal+

Canal+

Canal+ is a French premium pay television channel launched in 1984. It is 80% owned by the Canal+ Group, which in turn is owned by Vivendi SA. The channel broadcasts several kinds of programming, mostly encrypted...

 and Bertelsmann

Bertelsmann

Bertelsmann AG is a multinational media corporation founded in 1835, based in Gütersloh, Germany. The company operates in 63 countries and employs 102,983 workers , which makes it the most international media corporation in the world. In 2008 the company reported a €16.118 billion consolidated...

. Canal+ later bought Bertelsmann's parts and created Canal+ Technologies. At end of September 2002, Thomson SA bought parts from Canal+ and became the majority holder with 92% of shares.