Two factor verification using QR-code: A unique authentication system for Android smartphone users
2015 ◽
Vol 13
(2)
◽
pp. 220-229
◽
2014 ◽
Vol 39B
(4)
◽
pp. 207-215
◽
2020 ◽
Vol 12
(3)
◽
pp. 1
2020 ◽
Vol 12
(4)
◽
pp. 436
2019 ◽
Vol 590
◽
pp. 012010