The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Mar. 12, 2021
Nanjing University of Posts and Telecommunications, Jiangsu, CN;
Nantong Institute of Nanjing University of Posts and Telecommunications Co., Ltd., Jiangsu, CN;
Zhikuang Cai, Jiangsu, CN;
Xun Xu, Jiangsu, CN;
Ming Wang, Jiangsu, CN;
Zixuan Wang, Jiangsu, CN;
Henglu Wang, Jiangsu, CN;
Jingqi Yao, Jiangsu, CN;
Jiafei Yao, Jiangsu, CN;
Yufeng Guo, Jiangsu, CN;
Abstract
A method for preventing a differential cryptanalysis attack is provided. The method is implemented by an adaptive scan chain, a control module, and a plaintext analysis module. The plaintext analysis module controls the adaptive scan chain, so that two plaintexts differing in the last bit of only one byte are input through scan chains with different structures. Consequently, the two input plaintexts for which differential cryptanalysis attack technology originally can be used to crack the key are unable to generate outputs that can be used by the differential cryptanalysis attack technology.