Encryption of a compressed video stream

Details Encryption of a compressed video stream Encryption of a compressed video stream

2007-05-01

2007-05-01

Zand, Kambiz (Department: 2134)

Cryptography

Video cryptography

Video electric signal modification

C380S037000, C380S045000

Reexamination Certificate

active

10297431

ABSTRACT:
A method for encrypting a compressed video stream comprising independent data blocks and differential data blocks includes the steps of encrypting the independent data blocks with a different level of encryption than that used for the differential data blocks. In one embodiment, the differential data blocks are unencrypted. The method allows the reception of a compressed data stream using powerful algorithms on terminals having small cryptographic capacities.

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