Method for trusted booting of PLC based on measurement mechanism

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11093258
APP PUB NO 20180285127A1
SERIAL NO

15572624

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention discloses a method for trusted booting of PLC based on a measurement mechanism, comprising the following steps: a step of initializing self firmware verification; a step of reading and computing firmware information about a PLC; a step of checking and storing one by one; and a step of verifying at the operation start stage. In the method of the present invention, a chip with a trusted function is used as a core of hardware computation. The PLC extends a Flash bus for loading by hardware of the method of the present invention. The hardware of the method of the present invention recognizes necessary boot information, verifies the integrity of the boot loader necessary for the PLC system through the integrity check method and ensures that the booted PLC system is in a trusted state. On the basis of ensuring validity and feasibility for the safety of a terminal device, the present invention can build a safe and trusted industrial control system operating environment.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Chunyu Liaoning, CN 46 17
Liu, Xianda Liaoning, CN 44 59
Wang, Tianyu Liaoning, CN 49 229
Yu, Haibin Liaoning, CN 48 208
Zeng, Peng Liaoning, CN 59 1067
Zhang, Bowen Liaoning, CN 40 39
Zhao, Jianming Liaoning, CN 16 26

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Feb 17, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 17, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 17, 2033
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00