Efficient cryptography techniques for image encryption in cloud storage

In recent years and with the great progress of the use of cloud computing and their uses that covered most aspects of modern life as well as provide a variety of services, such as the formation of computing resources, cost control, sustainability, mobility and service flexibility. However, there are challenges to cloud computing, the most important of which is data security and transmission. Cryptographic is the science of protecting data by converting data (plain text) into an incomprehensible format (cipher text) for unauthorized individuals through the use of mathematical techniques. This paper provides work for the most common encryption algorithms that are utilized to encryption of data in cloud computing and presented some of papers that based on the most common cryptographic techniques such as DES, 3DES, Blowfish, AES, RSA, D-H, ECC and others. This way paves the way for finding the suitable encryption algorithm to protect the data in the cloud environment. The AES outperforms the other algorithms in term of encryption time.