Microsoft Technology Licensing, LLC

Greg M Zaverucha

Ling Tony Chen

John Grant Bennett

David G Thaler

Jonathan E Lange

Justin Allen Hutchings

Daniel Stelian Mihai

Arvind R Padole

Kevin M Kane

Pawel R Winogrodzki

Systems and methods related to ensuring the integrity of data stored in a memory by using a watermark are described. An example method in a system including a processor and a memory may include receiving data for storage at an address in the memory. The method may further include after encoding the data with an error correction code to generate intermediate data having a first number of bits, reversibly altering the intermediate data with a watermark to generate watermarked data for storage in the memory, where the watermark is generated by applying a cryptographic function to a user key and the address, and where the watermarked data has a second number of bits equal to the first number of bits.

Ensuring the integrity of data stored in a memory by using a watermark

The application is directed to a computer-implemented method and apparatus for provisioning an Internet of Things (IoT) device on an IoT network. The application is also directed to a method for managing access to functionality of an IoT device in a networked group.

Leveraging pre-existing groups for IoT device access

Return oriented programming (ROP) attack prevention techniques are described. In one or more examples, a method is described of protecting against return oriented programming attacks. The method includes initiating a compute signature hardware instruction of a computing device to compute a signature for a return address and the associated location on the stack the return address is stored and causing storage of the computed signature along with the return address in the stack. The method also includes enforcing that before executing the return instruction using the return address on the stack, initiating a verify signature hardware instruction of the computing device to verify the signature matches the target return address on the stack and responding to successful verification of the signature through execution of the verify signature hardware instruction by the computing device, executing the return instruction to the return address.

Return oriented programming (ROP) attack protection

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Redmond, WA, United States of America

Greg M Zaverucha