Andrew H White

Title: Innovations by Andrew H. White

Introduction

Andrew H. White is an accomplished inventor based in Baltimore, MD. He holds two patents that showcase his expertise in computer processing and security. His work focuses on enhancing the integrity of control flow in processors and protecting computer stacks.

Latest Patents

One of his latest patents is titled "Processor for achieving flow integrity and a method of providing notice of a fault in control flow." This invention provides a processor and methods for detecting faults in control flow. The processor includes an instruction set architecture that defines a pair of FLOWSET and FLOWCHECK opcodes, which work in conjunction with a CFI shadow stack to detect faults in the intended flow of instructions. Upon detection of a fault, a fault notice is provided. The methods for detecting faults in control flow can be implemented using either hardware or software along with a shadow stack.

Another significant patent is the "Method of protecting a computer stack." This method involves creating two stacks: a normal stack and a shadow stack. The shadow stack contains shadow frames that hold the return address upon a subroutine call, as well as a user-definable state variable to identify a shadow frame as a return address. Before returning from a subroutine, the two return addresses are compared. If they do not match, the shadow stack is searched for a matching return address. This innovative approach ensures the integrity of return addresses in computer operations.

Career Highlights

Andrew H. White has made significant contributions to the field of computer security and processing. His work has been recognized by various organizations, including the United States of America as represented by the Director of the National Security Agency. He has also collaborated with the Government of the United States, further emphasizing his impact in the field.

Collaborations

Andrew has worked with notable organizations, including the National Security Agency, which highlights the importance and relevance of his inventions in national security and technology.

Conclusion

Andrew H. White's innovative patents reflect his dedication to improving computer processing and security. His contributions are vital in advancing technology and ensuring the integrity of computer systems.