Public key encryption schemes develop rapidly since the public key cryptography has been proposed in 1970s.Different encryption schemes have different application scenes.In this article we present a new public key encryption scheme,it is based on Li’s encryption scheme with keywords search,and combines the thoughts of fuzzy identity-based encryption.We construct a perfect encryption and decryption scheme,which can provide keywords search.The main application scenes of it are the encryption and decryption of keywords search in distributed systems.Additionally,we also provide safety analysis and probabilistic analysis for this scheme.%自从20世纪70年代公钥密码被提出后，公钥加密方案得到快速的发展。不同的加密方案应用的场景也有不同。基于Li 的带关键字搜索加密方案[21]提出一种新的公钥加密方案，结合模糊身份加密的思想，构造了完善的且提供关键字搜索的加解密方案。该方案的主要应用场景是分布式系统关键字搜索的加解密。对此方案进行了安全性分析和概率分析。
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