Journal of Korea Multimedia Society (한국멀티미디어학회논문지)
- Volume 11 Issue 6
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- Pages.845-851
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- 2008
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- 1229-7771(pISSN)
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- 2384-0102(eISSN)
Efficient OTP(One Time Password) Generation using AES-based MAC
- Park, Soon-Dong (Division of Electronics and Computer Engineering, Hanyang University) ;
- Na, Joong-Chae (Department of Computer Science and Engineering, Sejong University) ;
- Kim, Young-Hwan (Cluem Co. Ltd.) ;
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Kim, Dong-Kyue
(Division of Electronics and Computer Engineering, Hanyang University)
- Published : 2008.06.30
Abstract
The ID/password method is the most classical method among authentication techniques on the internet, and is performed more easily and successfully than other methods. However, it is a vulnerable method against attacks such as eavesdropping or replay attack. To overcome this problem, OTP technique is used. The most popular OTP is HOTP algorithm, which is based on one-way hash function SHA-1. As recent researches show the weakness of the hash function, we need a new algorithm to replace HOTP. In this paper we propose a new OTP algorithm using the MAC(Message Authentication Code) based on AES. We also show that the new OTP outperforms HOTP experimentally.