INDEXING OF UNSTRUCTURED DATA FOR SEARCHABLE ENCRYPTION IN CLOUD ENVIRONMENT

Abstract

Due to the wide use of cloud services the amount of unstructured data being transferred to the clouds is increasing exponentially. The security threats to the cloud data and probability of data vulnerabilities is also increasing. To minimize the data hacking, misuse or unauthorized use different data encryption techniques have been adopted by the cloud services providers and cloud clients for the data security. With these encryption techniques the data searching becomes difficult. The purpose of this research is to perform indexing on the unstructured data using the original document. The technique will reduce the overhead of decryption before searches. The preprocessed index will be encrypted which will not reveal the identity of the documents or the words present in the document. The decryption is only needed when the relevant documents are returned to the user.The proposed technique achieves the requirement of high security, efficiency and accurate search. It can be used as a secure data retrieval technique by data owners and organizations to minimize security threat and to have efficient search across the cloud server.