Abstract
Abstract A disposable password is necessary to avoid any danger by the use of a static password and reinforce the user's authentication. In order to prevent personal information from being exposed, OTP generation algorithm is regarded as important. The OTP generation algorithm we suggest in this thesis generates 256-bit-size OTP Data by using Seed value and Time value. This value that the generated OTP Data are arranged with a matrix and a 32-bit-value is extracted on an irregular basis becomes the final value. We can find out that the more OTP generation frequency we have, the lower probability of clash tolerance we get in our suggested algorithm, compared to the previous algorithm.Key Words : Authentication, One Time Password, Random Number, Truncation Function, Collision Resistance * 본 논문은 2013년 동명대하교 교내 학술연구비에 의하여 지원되었음Received 22 October 2014, Revised 28 November 2014Accepted 20 January 2015Corresponding Author: Dong Ryool Kim(Dept. of Mechatronics Engineering, Tongmyong University)Email: drkim@tu.ac.kr Ⓒ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.
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