System and method for copy-protecting distributed video content

Details System and method for copy-protecting distributed video content System and method for copy-protecting distributed video content

1996-09-30

1998-10-20

Tarcza, Thomas H.

Cryptography

Cryptanalysis

380 10, 380 52, 380 3, 380 4, H04L 900, H04N 7167

Patent

active

058258795

ABSTRACT:
A secure video content processor ("SVCP") which receives encrypted digital video information and converts it into analog information for a monitor while preventing unauthorized access to the intermediate unencrypted digital data. The SVCP uses hardware envelopes to prevent unauthorized access to the decrypted digital stream. When a need arises to transmit digital data outside the hardware envelope, the digital data is encrypted and then decrypted when it re-enters a hardware protected section of circuitry.

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patent: 5497419 (1996-03-01), Hill
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