User credibility evaluation method and device based on user behaviors and storage medium

The invention discloses a user credibility evaluation method and device based on user behaviors and a storage medium. The method comprises the steps: obtaining trust attribute information in the interaction process of a user and a cloud calculation service, and calculating the initial credibility of the user in the interaction process; wherein the trust attribute information comprises safety trust attribute information, reliable trust attribute information and performance trust attribute information; tracking the current behavior path of the user, and performing similarity calculation on the current behavior path and the frequent behavior path of the user to obtain a credibility coefficient; carrying out multiplication operation on the initial credibility and the credibility coefficient to obtain the credibility in a single user and cloud calculation service interaction process; and combining the credibility in the interaction process of the single user and the cloud calculation service with the time decay fa