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:
May. 26, 2020
Filed:
Apr. 11, 2017
Guangzhou Zhono Electronic Technology Co., Ltd., Guangzhou, Guangdong, CN;
Guangzhou ZHONO Electronic Technology Co., Ltd., Guangzhou, CN;
Abstract
A method for chip encryption includes obtaining a fuse value and a trim value of a chip and setting an encryption algorithm, setting the fuse value and the trim value as parameters of the encryption algorithm and obtaining a secret key which is unique for the chip accordingly to the encryption algorithm, and storing the fuse value, the trim value and the secret key in the chip. Since the fuse value and trim value of the chip are unique naturally, the secret key obtained from the same matrix chip for different applications or different matrix chips for the same application are different from each other, thereby increasing expenses and difficulty for crackers to crack the chip and protecting user's intellectual property perfectly.