Securing SMS Based One Time Password Technique from Man in the Middle Attack

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2014 by IJETT Journal
Volume-11 Number-3                          
Year of Publication : 2014
Authors : Safa Hamdare , Varsha Nagpurkar , Jayashri Mittal


Safa Hamdare , Varsha Nagpurkar , Jayashri Mittal. "Securing SMS Based One Time Password Technique from Man in the Middle Attack", International Journal of Engineering Trends and Technology (IJETT), V11(3),154-158 May 2014. ISSN:2231-5381. published by seventh sense research group


Security of financial transactions in E-Commerce is difficult to implement and there is a risk that user’s confidential data over the internet may be accessed by hackers. Unfortunately, interacting with an online service such as a banking web application often requires certain degree of technical sophistication that not all Internet users possess. For the last couple of year such naive users have been increasingly targeted by phishing attacks that are launched by miscreants who are aiming to make an easy profit by means of illegal financial transactions. In this paper, we have proposed an idea for securing e-commerce transaction from phishing attack. An approach already exists where phishing attack is prevented using one time password which is sent on user’s registered mobile via SMS for authentication. But this method can be counter attacked by “Man in the Middle”. In our paper, a new idea is proposed which is more secure compared to the existing online payment system using OTP. In this mechanism OTP is combined with the secure key and is then passed through RSA algorithm to generate the Transaction password. A Copy of this password is maintained at the server side and is being generated at the user side using a mobile application; so that it is not transferred over the insecure network leading to a fraudulent transaction.


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Phishing, Replay attack, MITM attack, RSA, Random Generator.