International Journal of Recent Development in Engineering and Technology (IJRDET)
The security of RSA public key cryptosystem is based on the assumption that factoring of a large number (modulus) is difficult. In RSA if one can factor modulus into its prime numbers then the private key is also detected and hence the security of the cryptosystem is broken. The Rabin cryptosystem is an asymmetric cryptographic technique, whose security, like that of RSA, is related to the difficulty of factorization. So in this paper, a Rabin over RSA public key cryptosystem called Hybrid Cryptography Algorithm based on Prime Factorization (HCAPF) is presented.