@inproceedings{oai:soar-ir.repo.nii.ac.jp:00013262, author = {Takamizawa, H and Kaijiri, K}, book = {Proceedings of the International Conference on Networking, International Conference on Systems and International Conference on Mobile Communications and Learning Technologies (ICNICONSMCL’06)}, month = {Apr}, note = {Institutions of higher education that give the credits by distance learning using WBT have increased recently. In these situations, the authentication model by (ID, password) pair is general. However, this authentication model cannot prevent “Identity theft” effectively. In this paper, we propose a new authentication model to solve this problem by using cellular phones., Article, Proceedings of the International Conference on Networking, International Conference on Systems and International Conference on Mobile Communications and Learning Technologies (ICNICONSMCL’06)}, publisher = {IEEE Computer Society}, title = {Reliable Authentication Method by Using Cellular Phones in WBT}, year = {2006} }