Patents by Inventor Shuijingtao LI

Shuijingtao LI 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).

  • Cache securing method and device capable of resisting side channel attack
    Patent number: 11334668
    Abstract: A method and a device for securing a cache against side channel attacks are provided. An allocator identifier ALLOCATOR field is added to each cache entry in the present disclosure. Whenever an entry is allocated in the cache, the identifier of the software domain currently running on the processor is filled into the ALLOCATOR field of the allocation entry. When accessing the cache, the cache entry can be hit only if the identifier of the software domain currently running on the processor is identical to the ALLOCATOR field in the cache entry. If the cache entry to be replaced is invalid or its ALLOCATOR field is identical to the identifier of the software domain currently running on the processor, then the existing entry in the cache is replaced directly; otherwise, the entire cache is emptied.
    Type: Grant
    Filed: December 30, 2018
    Date of Patent: May 17, 2022
    Assignee: PHYTIUM TECHNOLOGY CO., LTD.
    Inventors: Qiang Dou, Tianlei Zhao, Chengyi Zhang, Jun Gao, Hongbo Xue, Xiaoyan Liu, Wenzhe Li, Yujiao Wang, Jiahong Yuan, Longpeng Sun, Shuijingtao Li, Zhe Ding, Xiaofeng Wang, Xiaodao Wang, Wenhui Cao, Shuaike Zheng, Boqing You, Yuan Yuan, Xiaoli Zou
  • CACHE SECURING METHOD AND DEVICE CAPABLE OF RESISTING SIDE CHANNEL ATTACK
    Publication number: 20200242243
    Abstract: A method and a device for securing a cache against side channel attacks are provided. An allocator identifier ALLOCATOR field is added to each cache entry in the present disclosure. Whenever an entry is allocated in the cache, the identifier of the software domain currently running on the processor is filled into the ALLOCATOR field of the allocation entry. When accessing the cache, the cache entry can be hit only if the identifier of the software domain currently running on the processor is identical to the ALLOCATOR field in the cache entry. If the cache entry to be replaced is invalid or its ALLOCATOR field is identical to the identifier of the software domain currently running on the processor, then the existing entry in the cache is replaced directly; otherwise, the entire cache is emptied.
    Type: Application
    Filed: December 30, 2018
    Publication date: July 30, 2020
    Applicant: PHYTIUM TECHNOLOGY CO.,LTD.
    Inventors: Qiang DOU, Tianlei ZHAO, Chengyi ZHANG, Jun GAO, Hongbo XUE, Xiaoyan LIU, Wenzhe LI, Yujiao WANG, Jiahong YUAN, Longpeng SUN, Shuijingtao LI, Zhe DING, Xiaofeng WANG, Xiaodao WANG, Wenhui CAO, Shuaike ZHENG, Boqing YOU, Yuan YUAN, Xiaoli ZOU