Content selection for partial encryption

Details Content selection for partial encryption Content selection for partial encryption

2007-09-25

2009-10-13

Song, Hosuk (Department: 2435)

Cryptography

Video cryptography

C380S201000, C380S202000

Reexamination Certificate

active

07602912

ABSTRACT:
A method of selecting data for multiple carriage partial encryption consistent with certain embodiments involves examining unencrypted packets of data in a digital audio/video data stream to identify a packet type; and selecting packets of the identified packet type for multiple partial encryption, wherein the amount of data to be encrypted is sufficient to render a portion of an entire frame unviewable. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

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