A New Type of Graphical Passwords Based on Odd-Elegant Labelled Graphs

<div>An example of illustrating Lemma <a href="https://static.hindawi.com/articles/scn/volume-2018/9482345/figures/#lem1">5</a>.</div>

Security and Communication Networks

Figure 5: A New Type of Graphical Passwords Based on Odd-Elegant Labelled Graphs 