Cloud-RSA: An Enhanced Homomorphic Encryption Scheme

Homomorphic encryption technique is a form of encryption which allows specific types of computations to be performed on encrypted data and generates an encrypted result. The decrypted result of any operation is the same such as working directly on raw data. The ability to perform computations on ciphertexts makes homomorphic encryption a widely adopted technique for ensuring confidentiality of both storage and treatment of outsourced data into a third party. Indeed, the RSA is the first asymmetric-key encryption scheme with a homomorphic property. Unfortunately, many attacks can threaten the encrypted data confidentiality of this scheme. In this paper, we will address the standard RSA drawbacks by suggesting an enhanced encryption scheme of it, which keeps a homomorphic property and resists more the well-known attacks against RSA.