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A Study on the Algorithm of Improved One-Time Password using Time and Time Correction  

강철오 (국가보안기술연구소)
박중길 (국가보안기술연구소)
홍순좌 (국가보안기술연구소)
배병철 (국가보안기술연구소)
박봉주 (호서대)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.11C, 2002 , pp. 1074-1080 More about this Journal
Abstract
In clients/server environments, the one-time password scheme using time is especially useful because it solves the synchronization problem. However, it has the problem that is time-slippage, and causes the authentication to fail. In this paper, we propose an effective one-time password algorithm, which solves the time-slippage problem through the use of 1-bit information, which denotes the duration in which the authentication could be failed because of time-slippage. This algorithm is added easily and quickly to current one-time password systems using time without requiring any change of protocols: the proposed algorithm can be implemented by adding only 1-bit information to the user authentication information, not by modifying the one-time password authentication system protocol. And we propose also the algorithm of time correction, which can be implemented by adding 2-bit information on the proposed one-time password.
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Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 /
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