Validation method for design of system security of AltaRica model

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...

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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 generation method cost is too high and can not deal with huge system scale and system high complexity defects, As well as the insufficient technical problems of existing model-based fault tree generation methods

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