Invention Grant
- Patent Title: Physical unclonable function for non-volatile memory
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Application No.: US15601251Application Date: 2017-05-22
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Publication No.: US10469271B2Publication Date: 2019-11-05
- Inventor: Chun-Hsiung Hung , Kuen-Long Chang , Ken-Hui Chen , Shih-Chang Huang
- Applicant: MACRONIX INTERNATIONAL CO., LTD.
- Applicant Address: TW Hsinchu
- Assignee: MACRONIX INTERNATIONAL CO., LTD.
- Current Assignee: MACRONIX INTERNATIONAL CO., LTD.
- Current Assignee Address: TW Hsinchu
- Agency: Haynes Beffel & Wolfeld LLP
- Agent Andrew L. Dunlap
- Main IPC: G11C16/04
- IPC: G11C16/04 ; H04L9/32 ; G06F7/58 ; G06F11/10 ; G06F12/02 ; G06F12/14 ; G06F21/31 ; G06F21/60 ; G06F21/75 ; G11C7/24 ; G11C13/00 ; G11C16/10 ; G11C16/26 ; H04L9/08 ; G11C8/20 ; G06F13/42 ; G06F3/06 ; G11C16/22 ; G09C1/00 ; H04L9/14 ; G11C11/16 ; G11C7/10

Abstract:
A system and method for utilizing a security key stored in non-volatile memory, and for generating a PUF-based data set on an integrated circuit including non-volatile memory cells, such as flash memory cells, are described. The method includes storing a security key in a particular block in a plurality of blocks of the non-volatile memory array; utilizing, in a security logic circuit coupled to the non-volatile memory array, the security key stored in the particular block in a protocol to enable access via a port by external devices or communication networks to data stored in blocks in the plurality of blocks; and enabling read-only access to the particular block by the security logic for use in the protocol, and preventing access to the particular block via the port.
Public/Granted literature
- US20180039784A1 PHYSICAL UNCLONABLE FUNCTION FOR NON-VOLATILE MEMORY Public/Granted day:2018-02-08
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