When the conventional method verifies the user's multi-level identity,only the rule-based credibility is used as the verification basis,which leads to a large number of verification rounds and a long time for user access control decision-making.Therefor,a power cloud system security access control method based on multi-level authentication is proposed.It collects the legal evidence of the user's identity of the power cloud system,calculates the rule-based credibility,and calculates the credibili-ty of the access sequence according to the update amount of the predicted value of the user's state.This paper takes the two kinds of credibility as the verification basis to obtain the user's multi-level identity credibility,screen the trusted users at one time,build a secure access control model,manage the access control policy,determine the legitimate user's access request,and authorize when the access request meets the policy rules,otherwise,authorization is not allowed.The power cloud platform is selected as the test object to determine the user's accessible resources and allocate read permission,write permission and audit permission.The experimental results show that the design method shortens the user's access control decision-making time in the face of multiple access control strategies and a large number of users.
关键词
多级身份验证/电力云系统/访问请求/访问控制策略/可信度/授权决策
Key words
multi-level authentication/power cloud system/access request/access control policy/credibility/authorization de-cision
维普
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