Enterprise Data Encryption and Ciphertext Fulltext Retrieval on Cloud Storage

Based on ciphertext-policy attribute-based encryption and full text indexing technology of Lucene,a method of ciphertext data in full text indexing and retrieving is proposed for cloud storage applications.An improved ciphertext-policy attribute-based encryption is presented according to features of cloud storage applications.A security model deployed in enterprise sides is proposed.Services of data encryption,ciphertext fulltext retrieval and access control are designed based on Lucene full text indexing engine and the improved ciphertext-policy attribute-based encryption.The security model can be used to solve the problem of data confidential and ciphertext full text retrieval of an enterprise in the cloud storage properly.