Secure Data Sharing in Cloud Computing based on Advanced SDBAES with Key Management Technique

Cloud systems can be used to enable data sharing apabilities and this can provide several benefits to the users and organizations, when the data is shared in cloud. Many organizations uses cloud storage to store its critical information rapidly due to its attractive features of cloud computing. Data security is one of the main challenge in cloud computing. Data storage in cloud computing is very difficult now-a-days because internet usage used by the cloud based services have less control in the data. The
previous system trust the third-party auditor, who was not doing any illegal actions. But some cases they may involve illegal actions. To overcome such difficulty, the proposed system uses the data sharing which allows the Key Generation Center (KGC) to generate partial private key. The proposed work uses the public and private key for encryption which is formed by the KGC, but the key is accomplished by third party auditor. The whole private key could be gained by the mixture of partial private key and user generated random numbers. The proposed method uses the algorithm, Secure Dynamic Bits Advance Encryption Standard (SDBAES) to design public key cryptography system with key management to offer an authentication against the malicious third-party through public integrity verification scheme. And, also this system overcomes the defense from SQL injection attack, birthday attack and collusion attack in data security cryptography.