Towards usable and secure graphical passwords for smartphones

Date: 26 June 2020


Slides: Secure Graphical Passwords – Hyoungshick Kim

Title: Towards usable and secure graphical passwords for smartphones

Guest speaker: Professor Hyoungshick Kim from Sungkyunkwan University, South Korea

Hyoungshick Kim is an associate professor in the Department of Software, Sungkyunkwan University. He is also a visiting scientist with Data61, CSIRO. He received a BS degree from the Department of Information Engineering at Sungkyunkwan University, an MS degree from the Department of Computer Science at KAIST and a Ph.D. degree from the Computer Laboratory at the University of Cambridge in 1999, 2001 and 2012, respectively. After completing his Ph.D., he worked as a post-doctoral fellow in the Department of Electrical and Computer Engineering at the University of British Columbia. He previously worked for Samsung Electronics as a senior engineer from 2004 to 2008. His current research interest is focused on usable security and blockchain.


Usability and security are often seen as competing design goals. In practice, however, security mechanisms have to be usable to be effective. Wrong assumptions about users can lead to systems that are useless and vulnerable. We can see that many security solutions fail because of their poor usability. For example, many casual users don’t use anti-virus scanners because they believe security solutions will degrade the performance of their systems. In this talk, I will explain basic principles to help audiences develop more secure and usable solutions through many real-world examples and introduce recent research results about graphical passwords for smartphones.