J
Jong-Woo Kim
Researcher at Pusan National University
Publications - 4
Citations - 44
Jong-Woo Kim is an academic researcher from Pusan National University. The author has contributed to research in topics: Password psychology & Password. The author has an hindex of 3, co-authored 4 publications receiving 40 citations.
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Proceedings ArticleDOI
A new shoulder-surfing resistant password for mobile environments
TL;DR: This paper presents a new shoulder-surfing resistant password that makes it difficult for attackers to observe a user's password by requiring the user to locate his or her password in the given password grid instead of entering the password.
Proceedings ArticleDOI
Detecting the Orientation of N-gonal Cropped Sub-images and Its Application
TL;DR: This paper presents an effective image-based CAPTCHA based on the orientation of N-gonal cropped sub-images as a solution of CAPTCHAs and discusses usability of the CAPTcha and the efficient values of the number of orientations and the crop size through user experiments and SVM-based machine learning tests.
Journal ArticleDOI
A New Communication Network Model for Chat Agents in Virtual Space
TL;DR: A new method to measure the capacity of communication between chat agents and a novel visualization method to depict the hierarchical structure of chat dialogues are proposed and concerned with communication networks for virtual people (avatars) living in virtual worlds.