• Aritra Dutta
• Dr. Rajesh Bose
• Dr. Sandip Roy
• Shrabani Sutradhar

Cryptographic techniques are efficient data security method to conserve sensitive data in the cloud. Data privacy and Data security are naturally difficult task in cloud computing. Data must be protected from unauthorized access and vernacular user. In our proposed method we encrypt the sensitive data before outsourcing it to the cloud server, and ensure that the data is not accessible to anyone without the decryption key. Additionally, by using combined hash functions, we can detect any unauthorized user who tries to access the data and their deceitful activity. It is very crucial to analyse the storage, communication security and computational overheads of proposed method. This will ensure the efficiency of the suggested security method in comparison with existing system.

"Design of a security system using Cryptographic Methods for Cloud Storage System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 5, page no.d345-d353, May-2023, Available :http://www.jetir.org/papers/JETIR2305349.pdf

"Design of a security system using Cryptographic Methods for Cloud Storage System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 5, page no. ppd345-d353, May-2023, Available at : http://www.jetir.org/papers/JETIR2305349.pdf