Abstract: In order to improve the security of data privacy and prevent data leakage, a novel data encryption algorithm is proposed in this paper based on privacy preserving. Digital and operator are encrypted into key special word, and the key word is input to the bloom filter to hit and decided to achieve the data comparison and protect the data, the validity and superiority of algorithm are tested by simulation experiments. The simulation results show that the proposed algorithm can enhance the security of data, and has the advantages of easy implementation, high practicability, so it can meet all kinds of data protection conditions.

Key words: data encryption, privacy preserving, order preserving encryption, bloom filter

摘要： 为了提高数据的安全性，防止隐私数据被泄漏，提出一种具有隐私保护功能的数据加密算法。将数字与操作符转化为特殊的加密关键字，将该关键字输入到布隆过滤器进行命中判定，实现数据间接比较保护数据，采用仿真实验测试算法的有效性和优越性。仿真结果表明，该算法可以提高数据的安全性，并且具有易实现、实用性强等优点，可以满足各种条件的数据保护。

关键词: 数据加密, 隐私保护, 保序加密, 布隆过滤器