Title: Cipher mechanical solidifying method used for important system safety guaranted
Application Number: 200410015658 Application Date: 2004.01.08
Publication Number: 1556514 Publication Date: 2004.12.22
Approval Pub. Date: Granted Pub. Date: 2006.02.08
International Classifi-cation: G09C1/00,G09C1/08
Applicant(s) Name: Shanghai Jiaotong Univ. Address: 200240
Inventor(s) Name: Zhang Weiping, Chen Wenyuan
Attorney & Agent: wang tilin wang guizhong
Abstract:
     The invention relates to a cipher mechanical solidifying and checking method used for safety assurance of a high-consequence system, including the steps: 1, constructing a cipher mechanism virtual machine; 2, starting up and running the virtual machine to reduplicatively execute mechanical solidification; 3, regulating and recording ternary numerical values of registers installed on the register rings at all layers; 4, according to the ternary numerical values, completing the mechanical solidification of the cipher in layers; where the cipher is a group of A and B combinations, representing the movements of gear sets A and B, respectively. It can conveniently implement multilayer and multitooth-bit mechanical solidification of an arbitrary cipher, implement the functions of correct-code turn-on and code-error instantly locking for an arbitrary cipher, and be used in safety assurance of a high-consequence system.
Time: 6
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