Hybrid Cloud Storage Techniques Using Rsa And Ecc

Abstract

Rivest, Shamir, and Adleman (RSA) is one of the most important types of asymmetric cryptography. In RSA, the key size is larger compared to algorithms in cryptography. In this concept, keys are generated with any two prime numbers. An unauthorized person can easily obtain the keys using a Greatest Common Delvisor (GCD) attack. This is one of the main disadvantages of RSA cryptography. Elliptic Curve Cryptography (ECC) is also an asymmetric cryptography with a small key size. The proposed work aims to overcome the disadvantage of GCD attack in RSA. An RSA private and public key can be combined with an ECC private and public key using Exclusive OR(XOR) to generate a new hybrid private and public key. RSA encryption can be done using a new hybrid public key. RSA decryption can be done using a new hybrid private key. The advantage of the proposed work is to create three key levels for cryptography to prevent GCD attack in RSA. The key strength is higher compared to simple RSA key generation.