International Business Machines Corporation

Donald E Leake, Jr

Jeffrey Bruce Lotspiech

Hongxia Jin

Thomas Alexander Bellwood

Sigfredo Ismael Nin

James M Gasiewski

Wilfred E Plouffe

Stefan Nusser

A system and method are provided for facilitating the playing of a watermarked video having the 'birthday problem'. Consumers send the problem disc to an authorization center where the disc is analyzed to determine if it is a legitimate disc. The authorization center generates a digital certificate uniquely associated with the disc and with the video and embeds the digital certificate into the disc. The digital certificate will cause a video player to play the video without checking for the watermark.

System and method for solving the 'birthday problem' with watermarking

System and method for solving the 'birthday' problem with watermarking

A trusted Java virtual machine provides a method for supporting tamper-resistant applications, ensuring the integrity of an application and its secrets such as keys. The trusted Java virtual machine verifies the integrity of the Java application, prevents debugging of the Java application, and allows the Java application to securely store and retrieve secrets. The trusted Java virtual machine environment comprises a TrustedDictionary, a TrustedBundle, an optional encryption method for encrypting and decrypting byte codes, and an underlying trusted Java virtual machine. The encrypted TrustedDictionary protects data while the TrustedBundle protects programming code, allowing applications to store secret data and secure counters. The application designer can restrict TrustedBundle access to only those interfaces that the application designer explicitly exports. The open source code may optionally be encrypted. Secrets required by the open source programming code of the application are encrypted in TrustedDictionary.

Tamper-resistant trusted Java virtual machine and method of using the same

A protected content distribution system utilizes media-based copy protection to support online distribution of protected content in a secure and legitimate fashion. Using a media-based copy protection scheme based on broadcast encryption, the protected content distribution system realizes online distribution of protected content such as, for example audio files, movies, etc, authorizing consumption of unlicensed content by transfer of a unique encrypted key to the protected media. This transaction is fast, involving the transfer of an encrypted binding key rather than the protected content. Content is enabled through a unique encrypted key on protected media accessed through a device separate from the media driver.

System, service, and method for enabling authorized use of distributed content on a protected media

Tamper-resistant trusted java virtual machine and method of using the same

Growing community of inventors

Vestal, NY, United States of America

Donald E Leake, Jr