A randomization based computation of RSA to resist power analysis attacks

This paper presents an overview on the randomization technique. Randomization has been considered as one of the efficient techniques to resist power analysis attack on exponentiation based cryptographic algorithm. RSA is one of the most widely used public key cryptosystem. It uses exponentiation operation for encryption / decryption of data. If the instantaneous power consumed during the exponential operation is monitored, it could reveal the operation as well as secret data. Here we have proposed a randomization based exponentiation calculation method that could resist power analysis attacks on RSA.