Liquid Machines, Inc.

Vasanth Bala

Michael D Smith

A content processor application is loaded into memory from a master image to form a runtime content processor application image. An integration agent dynamically integrates a protection agent into the loaded runtime content processor application image to form a customized content processor application with extended functionality. Only the runtime content processor application image is extended with the protection agent&#x2014;the application master image remains unaltered.

Method for protecting digital content from unauthorized use by automatically and dynamically integrating a content-protection agent

An application module is rewritten by overwriting executable code at identified authorization points with control transfers to a managed challenge system such that a rewritten application module results. The managed challenge system is constructed to include the overwritten executable code, and performs an authorization check upon acquiring control from an authorization point. The managed challenge system is linked to the rewritten application module.

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Tarrytown, NY, United States of America

Vasanth Bala