@article{oai:soar-ir.repo.nii.ac.jp:00012541,
 author = {Takamizawa,  H and Kaijiri,  K},
 issue = {12},
 journal = {International Journal of Instructional Technology and Distance Learning},
 month = {Dec},
 note = {Articles are the intellectual property of the author. The Creative Commons copyright permits copy or dissemination for education or non-profit purposes so long as author and title of the article are included with title, volume, number and URL for the Journal., Institutions of higher education that offer credits through distance learning using web based training (WBT) have increased recently. In these situations, an authentication model using the IDpassword pair is generally used. However, this authentication model cannot prevent “identity theft” effectively. We propose a new authentication method that solves this problem by using cellular phones as an authentication token. The authentication accuracy is expected to be improved by combining the ID-password pair with the subscriber ID of cellular phones. We realized a prototype system and prepared a questionnaire in order to validate the effectiveness of our proposed method, and as a result, we demonstrated the effectiveness and realizability of our method., Article, International Journal of Instructional Technology and Distance Learning. 3(12):35-45 (2006)},
 pages = {35--45},
 title = {Reliable Authentication Method by Using Cellular Phones in Web Based Training},
 volume = {3},
 year = {2006}
}