Microsoft Technology Licensing, LLC

Lazar Ivanov

Caglar Gunyakti

Kristjan Eric Hatlelid

Muthukrishnan Paramasivam

Ravi Pandya

Dongmei Gui

Scott W P Hsu

Yeu Liu

Kristjan E Hattelid

A flexible use licensing system for an application comprising a plurality of licensable products is provided comprising an application level product policy definition license, and a licensable product policy definition license corresponding to each licensable product. The flexible use license further comprises a rights account certificate for validating the use license against a variety of environmental conditions, and an external validation component for validating the use license at a licensing authority without the transmittal of the entire use license.

Supplementary trust model for software licensing/commercial digital distribution policy

Distributed module authentication allows security checks to be initiated by multiple software modules. Module authentication processes can be inserted into two or more modules in an operating system and/or various other applications. These module authentication processes can verify the integrity of binaries associated with one or more modules in computer memory. Security checks can be performed on modules stored on disk, in active system memory, or in any other location. Various security checks can be coordinated with each other to ensure variety and frequency of module authentication, as well as to randomize the module authentication process that performs a particular security check. In addition, security processor code can be interleaved within normal application code, so the security code is difficult for attackers to remove or disable without damaging the useful functionality of an application.

System and method for distributed module authentication

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Lazar Ivanov