一种新型隐私数据库秘密同态检索协议

摘要

This paper proposed a new homomorphic retrieval protocol for privacy database based on the leakage of the privacy information treat model.It was designed with the SomeWhat homomorphic scheme to solve the leakage of the privacy information in the database which was in the specific treat model.It analyzed the correctness and the security of this protocol,and also tested the efficiency with appropriate parameters.%针对隐私数据查询中的隐私泄露威胁模型,提出了一种新型隐私数据库秘密同态检索协议.该协议基于SomeWhat部分同态算法进行设计,通过使用密文同态运算性质较好地解决了该威胁模型中涉及到的隐私泄露问题,同时在证明该协议正确性和安全性的基础上,通过适当的参数选择,对该协议的同态算法进行了测试,给出了算法的运行效率.