Patent Number: 7,103,184

Title: System and method for sign mask encryption and decryption

Abstract: In general, one embodiment of the invention involves a method to protect the integrity of the sign mask. The method involves computing a key shared by a plurality of software modules employed within an image display device and encrypting a sign mask with the shared key. The sign mask is used for scrambling a bit stream prior to its transmission along with the encrypted sign mask. The encrypted sign mask is decrypted at the destination in order to descramble the scrambled bit stream.

Inventors: Jian; Jian-Ming (Folsom, CA)

Assignee: Intel Corporation

International Classification: H04N 7/167 (20060101); H04L 9/14 (20060101); H04N 7/025 (20060101)

Expiration Date: 9/05/02018