SAV TECHNIQUE FOR SECURLY SHARING DEFENCE DATA IN INTERNET USING ADDITIVE HOMOMORPHIC ENCRYPTION METHOD - Anna University Internal marks 2018

SAV TECHNIQUE FOR SECURLY SHARING DEFENCE DATA IN INTERNET USING ADDITIVE HOMOMORPHIC ENCRYPTION METHOD

Defence data are important data which are often outsourced to be stored at a third parties, such as cloud providers. To securely access these data over internet, various security schemes are used. 

But issues such as risks of privacy exposure, scalability in key management, confidence in cloud servers, advancement in decryption techniques and flexible access have remained as the most important challenges toward achieving fine-grained cryptographically enforced data access control over internet.

In this project a novel defence centric framework and an alternate mechanism for data access control is proposed for securing defence data stored in semi-trusted cloud servers. To achieve better security, Secure Alternate Viable (SAV) algorithm is used here. In this, source data will be split into two pieces and Additive Homomorphic Encryption (AHE) technique is used to encrypt it. 

Encrypted data will be stored at two different locations in the cloud. And, this encrypted data are further encrypted before transmitting it from cloud to data consumer. Totally two levels of encryption is done to deliver data from source to destination. 

At the destination, data consumer must enter security key, decryption key and One Time Pin to download the source data from cloud.

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