Microsoft Technology Licensing, LLC

Simon Lee Cooke

Xin Huang

A system and method for generating content for an encrypted package is provided. A package may be received that includes one or more anti-tamper hash portions and encrypted data, where the encrypted data includes one or more procedural content generation instructions. A portion of the encrypted data including the one or more procedural content generation instructions may be decrypted and a data based on the execution of the one or more procedural content generation instructions and a corpus of data may be generated. The generated data may be encrypted and anti-tamper hashes may be generated based on the encrypted generated data. The generated anti-tamper hashes may be compared to the one or more anti-tamper hashes in the anti-tamper hash portion of the received package.

Install-time procedural content generation for encrypted packages

Aspects of the present disclosure disclose provide systems and methods for updating, or patching, encrypted image files located at a remote location. More specifically, a content update package that includes encrypted information is received and decrypted. Based on the content update package, a first portion of data in an encrypted image file is located, where the first portion data is to be decrypted and updated based on data in the content update package. The updated data may then be encrypted, verified, and stored. When the updating, or patching, process is complete, the file version located at the remote location is the same as the latest file version. In addition, the updating, or patching, process may be split between multiple operating systems.

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Simon Lee Cooke