Multiple selective encryption with DRM
作者： Brant L. Candelore
DOI:
关键词:
摘要: A method of encrypting a digital television signal consistent with certain embodiments involves examining unencrypted packets (350) data in the to identify packet type; duplicating identified as being type create first and second duplicate packets; according conditional access encryption encrypted (358); Digital Rights Management (DRM) DRM (362); replacing produce multiple partially signal. This abstract is not be considered limiting, since other may deviate from features described this abstract.
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