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http://dx.doi.org/10.13089/JKIISC.2012.22.2.327

Authentication of a smart phone user using audio frequency analysis  

Kim, Jin-Bok (School of Computer and Information Engineering, Inha University)
Song, Jeong-Eun (School of Computer and Information Engineering, Inha University)
Lee, Mun-Kyu (School of Computer and Information Engineering, Inha University)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.22, no.2, 2012 , pp. 327-336 More about this Journal
Abstract
In this paper, we propose user authentication methods using a microphone and a speaker in smart phones. The proposed methods guarantee that the user is located close to the target device by transmitting the challenge via an audio channel. We propose two authentication methods; user authentication for a PC or a website using a smart phone as a hardware token, and user authentication to log on to a smart phone using a PC as a token. Because our methods use typical peripheral devices such as a microphone and a speaker, they do not require any special-purpose hardware equipment. In addition, the elderly and the handicapped can easily use our methods because the methods are activated by simple operations.
Keywords
user authentication; audio frequency analysis; smart phone;
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