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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| Format: | Article |
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MDPI
2019
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