Study to Improve Security for IoT Smart Device Controller: Drawbacks and Countermeasures

Table 2

Usability comparison.

Existing and proposed schemes		Possible metrics classification
		Easy registration	Typing speed	Typing error	Easy to understand	Easy to remember	Login speed
Text	1	G	G	M	G	G	G
	2	G	M	G	M	M	M
	3	G	M	G	M	M	M
Graphical	4	G	G	G	G	G	G
	5	M	B	M	M	B	B
	6	G	G	G	G	G	G
PIN	7	G	G	G	G	G	G
	8	M	M	G	M	M	M
Signature	9	G	G	G	G	G	G
	10	G	G	M	G	G	G
Fingerprint	11	G	G	G	G	G	G
	12	G	G	G	G	G	G