Patents by Inventor Winthrop Wu

Winthrop Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11507659
    Abstract: Embodiments herein facilitate resisting side channel attacks through various implementations and combinations of implementations. In embodiments, this is accomplished by preventing sensitive data from consecutively following other data through potentially vulnerable resources which otherwise may cause data to leak. Where such vulnerabilities to attacks are known, suspected, or as a proactive precaution, a cleaner can be used to inhibit the sensitive data from passing through the vulnerable areas consecutively and thus inhibit the leakage. Embodiments also envision utilizing certain types of circuits to assist in preventing leakage. By using such circuits one can reduce or even potentially eliminate the requirement for cleaners as mentioned previously.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: November 22, 2022
    Assignee: Cryptography Research, Inc.
    Inventors: Sami Saab, Elke De Mulder, Pankaj Rohatgi, Craig E. Hampel, Jeremy Cooper, Winthrop Wu
  • Publication number: 20210056053
    Abstract: Described herein are technologies for application authentication and/or data encryption without stored pre-shared keys. In one resource controller, a processing device receives an application identifier (ID) from the application. The processing device provides a current nonce responsive to the application ID and provides the application access to the system resource responsive to determining that a hash of a current key received from the application equals a current tag. The current key is generated by the application based on code of the application and the current nonce. The current tag was previously provided from the application to the resource controller. The current tag can also be hashed by the application using the current key.
    Type: Application
    Filed: July 22, 2020
    Publication date: February 25, 2021
    Inventors: Mark E. Marson, Scott Best, Winthrop Wu, Matthew Evan Orzen, Helena Handschuh
  • Publication number: 20210026956
    Abstract: Embodiments herein facilitate resisting side channel attacks through various implementations and combinations of implementations. In embodiments, this is accomplished by preventing sensitive data from consecutively following other data through potentially vulnerable resources which otherwise may cause data to leak. Where such vulnerabilities to attacks are known, suspected, or as a proactive precaution, a cleaner can be used to inhibit the sensitive data from passing through the vulnerable areas consecutively and thus inhibit the leakage. Embodiments also envision utilizing certain types of circuits to assist in preventing leakage. By using such circuits one can reduce or even potentially eliminate the requirement for cleaners as mentioned previously.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 28, 2021
    Inventors: Sami Saab, Elke De Mulder, Pankaj Rohatgi, Craig E. Hampel, Jeremy Cooper, Winthrop Wu
  • Patent number: 10789358
    Abstract: Embodiments herein facilitate resisting side channel attacks through various implementations and combinations of implementations. In embodiments, this is accomplished by preventing sensitive data from consecutively following other data through potentially vulnerable resources which otherwise may cause data to leak. Where such vulnerabilities to attacks are known, suspected, or as a proactive precaution, a cleaner can be used to inhibit the sensitive data from passing through the vulnerable areas consecutively and thus inhibit the leakage. Embodiments also envision utilizing certain types of circuits to assist in preventing leakage. By using such circuits one can reduce or even potentially eliminate the requirement for cleaners as mentioned previously.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: September 29, 2020
    Assignee: CRYPTOGRAPHY RESEARCH, INC.
    Inventors: Sami Saab, Elke De Mulder, Pankaj Rohatgi, Craig E Hampel, Jeremy Cooper, Winthrop Wu
  • Publication number: 20200175162
    Abstract: Embodiments herein facilitate resisting side channel attacks through various implementations and combinations of implementations. In embodiments, this is accomplished by preventing sensitive data from consecutively following other data through potentially vulnerable resources which otherwise may cause data to leak. Where such vulnerabilities to attacks are known, suspected, or as a proactive precaution, a cleaner can be used to inhibit the sensitive data from passing through the vulnerable areas consecutively and thus inhibit the leakage. Embodiments also envision utilizing certain types of circuits to assist in preventing leakage. By using such circuits one can reduce or even potentially eliminate the requirement for cleaners as mentioned previously.
    Type: Application
    Filed: October 12, 2016
    Publication date: June 4, 2020
    Inventors: Sami James Saab, Elke De Mulder, Pankaj Rohatgi, Craig E. Hampel, Jeremy Cooper, Winthrop Wu
  • Patent number: 10243727
    Abstract: The present disclosure presents methods, apparatuses, and systems to bolster communication security, and more particularly to utilize a constant time cryptographic co-processor engine for such communication security. For example, the disclosure includes a method for secure communication, comprising receiving encrypted data at a receiving device; obtaining a randomization for at least one bit of the encrypted data; modifying an execution of a cryptographic algorithm on the at least one bit to obtain a randomized cryptographic algorithm based on the randomization; and executing the randomized cryptographic algorithm on the at least one bit of encrypted data to recover original data associated with the encrypted data.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: March 26, 2019
    Assignees: ATI Technologies ULC, Advanced Micro Devices, Inc.
    Inventors: Winthrop Wu, James Goodman, Martin Kiernicki, Yoichi Shimokawa, William Thomas Morrison, Creighton Eldridge, David Kaplan
  • Patent number: 10185604
    Abstract: Methods and apparatus of interleaving two or more workloads are presented herein. The methods and apparatus may comprise a schedule controller and a coprocessor. The schedule controller is operative to utilize the first storage unit to manage context stored therein that allows for the coprocessor to interleave the two or more workloads that can be directly supported by the first storage unit. The coprocessor includes a dedicated first storage unit and an engine.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 22, 2019
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Winthrop Wu
  • Publication number: 20160352509
    Abstract: The present disclosure presents methods, apparatuses, and systems to bolster communication security, and more particularly to utilize a constant time cryptographic co-processor engine for such communication security. For example, the disclosure includes a method for secure communication, comprising receiving encrypted data at a receiving device; obtaining a randomization for at least one bit of the encrypted data; modifying an execution of a cryptographic algorithm on the at least one bit to obtain a randomized cryptographic algorithm based on the randomization; and executing the randomized cryptographic algorithm on the at least one bit of encrypted data to recover original data associated with the encrypted data.
    Type: Application
    Filed: October 31, 2014
    Publication date: December 1, 2016
    Inventors: Winthrop Wu, James Goodman, Martin Kiernicki, Yoichi Shimokawa, William Thomas Morrison, Creighton Eldridge, David Kaplan
  • Publication number: 20150121393
    Abstract: Methods and apparatus of interleaving two or more workloads are presented herein. The methods and apparatus may comprise a schedule controller and a coprocessor. The schedule controller is operative to utilize the first storage unit to manage context stored therein that allows for the coprocessor to interleave the two or more workloads that can be directly supported by the first storage unit. The coprocessor includes a dedicated first storage unit and an engine.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventor: Winthrop Wu
  • Publication number: 20140344486
    Abstract: Methods and apparatus for storing and delivering compressed data are disclosed. In one embodiment, a direct memory access (DMA) unit with a lossless coder/decoder (CODEC) receives uncompressed data. The direct memory access unit then compresses the uncompressed data to produce lossless compressed data, and stores the lossless compressed data in a memory, wherein the compressing operation and the storing operation are each part of a direct memory access (DMA) write operation. In another embodiment, the direct memory access (DMA) unit receives lossless compressed data. The direct memory access unit then decompresses the compressed data to produce lossless decompressed data, and delivers the decompressed data to an output device, wherein the decompressing operation and the receiving operation are each part of a direct memory access (DMA) read operation.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 20, 2014
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Winthrop Wu, Sebastien Nussbaum
  • Publication number: 20140340527
    Abstract: A video device having data lanes and a method of operating the video device includes generating performance monitoring and/or debug data in response to the operation of the video device. The generated data is sampled from component of the video device operating in various clocking domain. The data sampled from the components is combined into a unified stream which is independent of the various clocking domain. The unified stream is transmitted across one more data lanes of a video link along with corresponding audio and/or video data in real time.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 20, 2014
    Applicant: ADVANCED MICRO DEVICES, INC.
    Inventors: Winthrop Wu, Sebastien Nussbaum