Abstract
Trust helps to make decisions in unpredictable circumstances. Every security system depends on trust, in one form or another, among users of the system. A trust management scheme can used to help an automated decision-making process for the access control strategy. Unintentional temporary errors are possible in system, the trust management solution must provide a scheme to allow nodes to recover trust. However, if a malicious node tries to disguise the malicious behaviors as temporary errors, that node may be given more opportunities to attack the system by disturbing the redemption scheme. Here the attacker behaves well and badly alternatively in system. Thus here describe a new trust management and redemption scheme that can discriminate between temporary errors and malicious behaviors and it is a new flexible trust management scheme that can well detects and defends against the On-off attacks. The main design task is to discriminate between the temporary errors and malicious behaviors. The system help to detect and prevent the On- Off attack in an effective manner with the help of predictability trust and sliding window.
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