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Journal of Micro/Nanolithography, MEMS, and MOEMS

Development of a computer security authentication system-based MEMS coded lock
Author(s): Weiping Zhang; Wenyuan Chen; Shengyong Li; Minhua Feng; Shunyi Tan
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Paper Abstract

A novel computer security authentication system is proposed to improve computer security. There are two main differences between the novel system and the conventional one. First, the key is a physical code that is stored in counter meshing gears (CMEs). Second, the user's password is discriminated by a microelectromechanical systems (MEMS) coded lock. This system is composed of a MEMS coded lock, a peripheral component interconnect (PCI) card with a printed circuit board (PCB), and software in a basic input/output system (BIOS) chip. Unlike the old MEMS coded lock, two reset micromotors and an optoelectronic coupler are installed in the new MEMS coded lock. The circuit of the PCI card with PCB, which is used to drive the four micromotors of the lock, is developed. The software is assembled by netwide assembler (NASM) and written into the BIOS chip. Testing of the prototype shows that the MEMS coded lock can discriminate the user's password effectively. If the user's password is matched with the physical code, permission to use the computer is granted; otherwise, it is locked up.

Paper Details

Date Published: 1 April 2009
PDF: 5 pages
J. Micro/Nanolith. 8(2) 023015 doi: 10.1117/1.3129823
Published in: Journal of Micro/Nanolithography, MEMS, and MOEMS Volume 8, Issue 2
Show Author Affiliations
Weiping Zhang, Shanghai Jiao Tong Univ. (China)
Wenyuan Chen, Shanghai Jiao Tong Univ. (China)
Shengyong Li, Shanghai Jiao Tong Univ. (China)
Minhua Feng, Shanghai Jiao Tong Univ. (China)
Shunyi Tan, Shanghai Jiao Tong Univ. (China)

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