Comparative Study of Database Security In Cloud Computing Using AES and DES Encryption Algorithms

Abstract

Security is consider as one of the largest part important aspects in daily computing. The security is important in cloud
computing especially for data save in cloud because it have sensitivity and import data as well many user can access to same
data. Unfortunately the increase of the cloud user has been accompanied with a increase in malicious action in the cloud and
data not be completely trustworthy. Because of that the cloud computing security become big issue in the cloud data. The
danger of malicious in the cloud and the crash of cloud services have received a strong interest by researchers. Here, we
present a comparative study between state-of-art approaches to overcome these issues. This paper test and compare between
the Data Encryption Standard (DES) and Advanced Encryption Standard (AES) in term of different input size that result the
AES is faster than DES in the encryption time but in decryption the DES faster than AES from 20KB to 100 KB after that
the DES rise sharply and AES rise slightly that make ASE faster than DES in the decryption time from 120 KB to 300KB.