云端信息密文域内检索机制的研究

Research on the Mechanism of Encrypted Domain Information Retrieval in the Cloud

摘要: 云端作为第三方的存储平台，用户的核心信息以密文形式存储。信息的密文状态与明文相比缺少了信息内部的结构化特征，增加了密文检索的难度。在现有全文索引和数据库索引的基础上，利用Luene设计了一套高效的密文全文索引机制。一系列的实验分析表明，该密文索引机制，具有较好的安全性、保密性。具有较高的实际实用价值。

Abstract: Cloud storage platform, as the third party, its users’ core information is stored in the encrypted form. Compared to the plaintext, the ciphertext is lack of the structural features which increase the difficulty of the ciphertext retrieval. On the basis of the existing full-text index and database index, an efficient index mechanism of ciphertext is designed by using the Luene. A series of experimental analysis shows that the ciphertext index mechanism has good security and secrecy. Method will be of great practical value.