Abstract
Because the traditional data encryption method remains unchanged after the key is generated, the encryption scheme is single, the encryption cost is high, and it is easy to be cracked. Aiming at the above problems, the dynamic encryption method of user privacy data based on association rules hiding is studied. Based on the DGHV encryption scheme, a dynamic encryption scheme is designed to hide the mined user privacy data association rules. After the key is processed by confounding method, the dynamic encryption process of data is completed. By comparing with the traditional methods, it is verified that the encryption efficiency of the studied method is increased by at least 26.2%, which has the advantage of low encryption cost.
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