Gradeigh Clark

Guessing Attacks on User-Generated Gesture Passwords

Janne Lindqvist, Can Liu, Gradeigh Clark, 2017, IMWUT.

Of Two Minds, Multiple Addresses, and One Ledger: Characterizing Opinions, Knowledge, and Perceptions of Bitcoin Across Users and Non-Users

Janne Lindqvist, Gradeigh Clark, Xianyi Gao, 2016, CHI.

Of Two Minds, Multiple Addresses, and One History: Characterizing Opinions, Knowledge, and Perceptions of Bitcoin Across Groups

Janne Lindqvist, Gradeigh Clark, Xianyi Gao, 2015, ArXiv.

User-generated free-form gestures for authentication: security and memorability

Shridatt Sugrim, Antti Oulasvirta, Teemu Roos, 2014, MobiSys.

Engineering Gesture-Based Authentication Systems

Janne Lindqvist, Gradeigh Clark, J. Lindqvist, 2014, IEEE Pervasive Computing.

Where Usability and Security Go Hand-in-Hand: Robust Gesture-Based Authentication for Mobile Systems

Janne Lindqvist, Can Liu, Gradeigh Clark, 2017, CHI.