IEC 62455 (also known as the 18Crypt system) is an International Electrotechnical Commission terminal specification standard, prepared by the IEC 100 (Audio, video and multimedia systems and equipment) Technical Committee (TC), for a service purchase and protection system for digital broadcasts. Its full title is Internet protocol (IP) and transport stream (TS) based service access.
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The specification includes service purchase and protection functions, and applies to:
Version 1 of the standard was published in June 2007. Version 2 is expected in January 2011.