• ARPITA SHUKLA
• DR. PRATIMA GAUTAM
• Dr. RAJENDRA GUPTA

Cloud computing has come to be on the top of any list of topics in the fields of computer because of its cost effectiveness. Storage and maintenance of large amount of data used to be a nightmare of the end users, but the advent of cloud computing gave them breathers because of its third party computing capabilities, thereby cutting the cost of infrastructure and man power. Number of users stores their data on Cloud. Data storage security is known as the security of data on the storage media. Security is an important factor in cloud computing for ensuring clients data is placed on the secure mode in the cloud [6]. For this purpose cryptography algorithms are proposed. The use of relevant algorithm deals with the level of data safety in cloud because data security in cloud computing is a major issue as the data centers are located worldwide. Authentication is the essential procedure to fix the cloud data in a secured manner. Data security is a important issue of cloud computing. Thus, the need to ensure and confirm the safety of information that being transfer between the users and the cloud became more significant. Many security and authentication techniques(known as security) have been proposed to secure the exchanged data. These techniques aim to keep the authentication, privacy and reliability levels of data [7].

Cloud Computing, DES, RSA, Security, Cryptography, Encryption, Decryption

"Comparison of DES and RSA Algorithm for Security purpose in Cloud Computing", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.583-589, December-2018, Available :http://www.jetir.org/papers/JETIR1812776.pdf

"Comparison of DES and RSA Algorithm for Security purpose in Cloud Computing", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp583-589, December-2018, Available at : http://www.jetir.org/papers/JETIR1812776.pdf