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DVB-H handheld video content protection with ISMA Encryption

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By Stefan Doehla, Systems Engineer, Fraunhofer IIS
January 05, 2007 -- videsignline.com

An introduction to DVB-H service protection with a strong emphasis on ISMA Encryption and Authentication, Version 1.1 (also known as ISMACryp 1.1), recently finalized by the Internet Streaming Media Alliance.

ISMA Encryption and Authentication is one of the three chosen technologies for service protection in DVB-H (Digital Video Broadcasting - Handheld), the TV system for portable handheld devices. In this article we'll first review the DVB-H TV transmission system, and then examine more closely the issue of service protection and how the new ISMACryp 1.1 standard works.

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