Validation method for design of system security of AltaRica model

A system security and design verification technology, applied in the field of formal verification analysis of safety-critical systems, can solve problems such as high cost, insufficient fault tree generation methods, inability to cope with system scale and other problems, achieve precise definition, and solve model conversion problems Effect

Inactive Publication Date: 2016-09-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0007] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a system safety design verification method for AltaRica model, to solve the traditional fault tree g

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  • Validation method for design of system security of AltaRica model
  • Validation method for design of system security of AltaRica model
  • Validation method for design of system security of AltaRica model

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Embodiment Construction

[0031] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 1 As shown, the method of the present invention introduces the AltaRica model of the embedded system into the safety analysis process, utilizes the AltaRica model as the normal behavior model and failure behavior model of the system, and utilizes the Interface Transition System (InterfaceTransition System, ITS) as the basis for model conversion. Then, based on the semantic analysis of AltaRica model and Promela model, the rules of model conversion are defined, and the system security requirements are regulated by linear temporal logic. Finally, the Promela model obtained by using the security requirements specification and conversion is imported into the exhaustive model checking tool to realize the system security design verification oriented to the AltaRica model.

[0033] Achieved by the technical solution:

[...

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Abstract

The invention discloses a validation method for design of system security of an AltaRica model. The method comprises following steps: step 1, establishing an AltaRica model for design of system security; step 2, defining the rule for model transformation from the AltaRica model to a Promela model; obtaining the Promela model after conversion of the AltaRica model; step 3, utilizing lineal temporal logic to describe the system security demand in a formalized manner; step 4, utilizing a model detector to validity security of a system model; step 5, obtaining a security demand counter-example that does not satisfy the step 4, tracking the system security design model and finishing validation of the system security design model.The validation method for design of system security of the AltaRica model has following beneficial effects: a model conversion problem is effectively solved; operation on AltaRica is conducted by a model detection tool SPIN; and the validation method provides a new way of thinking for analyses of system security such that conversion rules are accurately defined.

Description

technical field [0001] The invention relates to a system safety design verification method, in particular to a system safety design verification method oriented to an AltaRica model. The invention belongs to the field of formal verification analysis of safety critical systems. Background technique [0002] The safety of safety-critical systems such as aviation and nuclear power has been paid more and more attention. System security analysis is the core content of system security engineering and the basis of security assessment. The main purpose of system security analysis is to understand and identify the dangers of the system, ensure that the system meets the specified security requirements, and provide a basis for security assessment. The main content of system safety analysis is to study the system behavior when some system components are in abnormal working state due to faults. [0003] In recent years, model-based security analysis techniques using formal methods, es...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 胡军陈松仵志鹏
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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