Preventing Shoulder-Surfing Attacks using Digraph Substitution Rules and Pass-Image Output Feedback

In this paper, we focus on methods to prevent shoulder-surfing attacks. We initially adopted digraph substitution rules from PlayFair cipher as our proposed method. PlayFair cipher is a modern cryptography method, which exists at the intersection of the disciplines of mathematics and computer scienc...

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Bibliographic Details

Main Authors:	Por, Lip Yee, Ku, Chin Soon, Ang, Tan Fong
Format:	Article
Published:	MDPI 2019
Subjects:	QA75 Electronic computers. Computer science
Online Access:	http://eprints.um.edu.my/23746/ https://doi.org/10.3390/sym11091087
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