Effect of side channel attacks on RSA embedded devices

Public key cryptosystem RSA is computationally secure against all traditional algorithmic attacks. However, their hardware implementations may be insecure against the analysis of its required time and consumed power during specific computations. This paper shows how insecure implementations of RSA leak information related to their secrete key. The timing analysis and simple and differential power analysis on a careless implementation may help to break a secure cryptosystem. The paper carries some experimental results on RSA exponentiation that specifies how different types of side channel analysis can be performed to break the secure RSA algorithm in its hardware implementation. The paper also significantly gives different countermeasures to overcome specific side channel attacks on RSA exponentiation algorithm.