Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2006-11-14
2006-11-14
Sheikh, Ayaz (Department: 2131)
Cryptography
Video cryptography
Video electric signal modification
C713S176000, C713S184000, C713S193000, C713S194000, C380S201000, C380S028000, C380S029000, C380S030000, C380S210000, C380S228000, C380S203000
Reexamination Certificate
active
07136487
ABSTRACT:
A system and method for automatically protecting private video content using embedded cryptographic security is disclosed. A substantially continuous video signal representing raw video content is divided into individual frames. Each frame stores a fixed amount of data in digital form. Each individual frame is encrypted into encrypted video content using an encryption cryptographic key. The encrypted frames is stored on a transportable storage medium. Encrypted frames are retrieved from the transportable storage medium. A decryption cryptographic key is verified prior to decryption. Each encrypted frame is decrypted using the decryption cryptographic key. The decrypted frames are combined into a substantially continuous video signal representing the raw video content in reconstructed form. In a further embodiment, private video content automatically authenticated using embedded cryptographic security, either alone or in conjunction with the encryption of video content.
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Jones William L.
Schon Walter J.
Chai Longbit
Hamaty Christopher J.
McAfee, Inc.
Sheikh Ayaz
Zilka-Kotab, PC
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