An Efficient Dispute Resolving Method for Digital Images. - Yunho Lee; Heasuk Jo; Seungjoo Kim; Dongho Won (OTM Workshops (1), 2006)

Security Weakness in a Provable Secure Authentication Protocol Given Forward Secure Session Key. - Mijin Kim; Heasuk Jo; Seungjoo Kim; Dongho Won (ICCSA (2), 2009)

Security Specification for Conversion Technologies of Heterogeneous DRM Systems. - Heasuk Jo; Woongryul Jeon; Yunho Lee; Seungjoo Kim; Dongho Won (ISPEC, 2009)

Off-Line Password-Guessing Attack to Yang's and Huang's Authentication Schemes for Session Initiation Protocol. - Heasuk Jo; Yunho Lee; Mijin Kim; Seungjoo Kim; Dongho Won (NCM, 2009)

A Study on Comparative Analysis of the Information Security Management Systems. - Heasuk Jo; Seungjoo Kim; Dongho Won (ICCSA (4), 2010)

Advanced Information Security Management Evaluation System. - Heasuk Jo; Seungjoo Kim; Dongho Won (KSII Trans. Internet Inf. Syst., 2011)

Weakness and simple improvement of anonymous mutual authentication protocol with link-layer. - Heasuk Jo; Seungjoo Kim; Dongho Won (CUBE, 2012)