实验结果表明，该方案具有较高的首次查询命中率和稳定的过滤效率，能提高加密系统的整体性能。
Experimental result shows that this scheme has higher first inquiry shooting and stable filtering efficiency, it can improve the encryption system performance.
实现了客户机与服务器间数据加密传输，同时实现了密钥的管理，包括密钥的生成、存储、删除、修改和查询。
The data encryption transmission is realized between Client and Server. Furthermore key management is realized including generating, storing, deleting, modifying and searching of key.
针对数据库中数据的保密性问题，分析了目前已有的一些加密机制，提出了一种基于密文索引的新的查询方法。
Aiming at the data secrecy problem in database, we have analyzed some present encryption mechanism and put forward a new query method based on ciphertext index.
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