Systems and methods for prevention of peer-to-peer file sharing

a technology of peer-to-peer file sharing and prevention methods, applied in the field of content distribution, can solve the problems of easy unauthorized copying of digital content, large amount of digital content transmission, and costing the legitimate owners of digital content millions or even billions of dollars in lost revenu
US20090063846A1Inactive Publication Date: 2009-03-05NB NETWORKS
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
NB NETWORKS
Publication Date
2009-03-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

A secure digital content delivery system includes a content provider and a content user. The content provider delivers encrypted content to the content user in response to delivery requests. The content provider generates encryption algorithms on the fly and encrypts the content prior to delivery, using a different encryption algorithm and key for each content delivery. The content user subsequently requests access permission from the content provider, to access the encrypted content. The content provider grants access by generating an executable decryption module on the fly and providing the executable decryption module to the content user. The content user decrypts the content and accesses it on the fly, using the executable decryption module. The accessed content is then re-encrypted using a different encryption algorithm and key, to preserve the integrity of the secure content delivery system. The content delivery system uses a programmably configurable protocol parsing engine to encrypt and decrypt content.
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Description

PRIORITY INFORMATION

[0001] This is a continuation-in-part of application U.S. Ser. No. 10 / 272,471, filed on Oct. 15, 2002, which issued as U.S. Pat. No. 6,651,102 on Nov. 18, 2003, which is a continuation-in-part of application U.S. Ser. No. 09 / 898,852, filed on Jul. 3, 2001, which issued as U.S. Pat. No. 6,493,761 on Dec. 10, 2002, which is a continuation-in-part of application U.S. Ser. No. 09 / 113,704, filed on Jul. 10, 1998, which issued as U.S. Pat. No. 6,266,700 on Jul. 24, 2001, which is a continuation of U.S. Ser. No. 09 / 080,325, filed on May 15, 1998, which issued as U.S. Pat. No. 6,000,041 on Dec. 7, 1999, which is a continuation of U.S. Ser. No. 08 / 888,875, filed on Jul. 7, 1997, which issued as U.S. Pat. No. 5,781,729 on Jul. 14, 1998, which is a continuation of U.S. Ser. No. 08 / 575,506, filed on Dec. 20, 1995, which issued as U.S. Pat. No. 5,793,954 on Aug. 11, 1998, the disclosures of which are expressly incorporated herein by reference.COPYRIGHT NOTICE

[0002] A portion of...

Claims

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