Hybrid Key Generation for RSA and ECC
E. Vidhya, Somu Sivabalan, R. Rathipriya · 2019
The Rivest, Shamir, and Adleman (RSA) is one of the most important types of the Asymmetric cryptography. In RSA the key size is bigger when compared to the algorithms in cryptography. The keys are generated with any two prime numbers. The unauthorized person can easily get the keys with a Greatest Common Divisor (GCD) Attack. This is one of the main drawbacks of RSA cryptography. The Elliptic Curve Cryptography (ECC) is also Asymmetric cryptography with a small key size. The proposed work is to overcome the drawback of the GCD Attack in RSA. The RSA private and public key can be combined with an ECC private and public key by using an Exclusive OR (XOR) and then the new hybrid private and public keys are generated. The RSA encryption can be done with a new hybrid public key. The RSA decryption can be done with a new hybrid private key. The advantages of the proposed work is the creation of three levels of key for cryptography, which can avoid the GCD attack in RSA. The key strength is higher when compared to the simple key generation of RSA algorithm.