Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Patent
1997-07-03
2000-04-18
Gregory, Bernarr E.
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
380255, 380287, 713150, 713182, 713189, 713190, 713200, H04L 900
Patent
active
060527803
ABSTRACT:
Some of these problems with digital information protection systems may be overcome by providing a mechanism which allows a content provider to encrypt digital information without requiring either a hardware or platform manufacturer or a content consumer to provide support for the specific form of corresponding decryption. This mechanism can be provided in a manner which allows the digital information to be copied easily for back-up purposes and to be transferred easily for distribution, but which should not permit copying of the digital information in decrypted form. In particular, the encrypted digital information is stored as an executable computer program which includes a decryption program that decrypts the encrypted information to provide the desired digital information, upon successful completion of an authorization procedure by the user. In combination with other mechanisms that track distribution, enforce royalty payments and control access to decryption keys, the present invention provides an improved method for identifying and detecting sources of unauthorized copies. Suitable authorization procedures also enable the digital information to be distributed for a limited number of uses and/or users, thus enabling per-use fees to be charged for the digital information.
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Gregory Bernarr E.
Open Security Solutions, LLC
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