This paper proposes a scheme of secure sharing of searchable data of the identity-based encryption in the IoT environment,which integrates the authorized user set with the keyword,eliminates the dependence of the key-word ciphertext and a single user,and reduces the computing and communication overheads at the link of the key-word encryption.The security analysis shows that the scheme satisfies the IND-CKA security in the standard model.The performance analysis shows that the communication overhead of the scheme remains constant in the stage of the keyword encryption.In the test phases of the keyword encryption and search trapdoor,the computing overhead of the scheme is significantly lower than the overheads of existing ones,which is more suitable for secure sharing of cloud data in the IoT environment.
关键词
物联网/基于身份加密/可搜索加密
Key words
Internet of Things/identity-based encryption/searchable encryption
维普
万方数据