20.500.12556/DKUM-67478 Napad na grafična gesla z grobo silo in slovarjem Brute force and dictionary attack on graphical passwords Grafična gesla so se pojavila kot alternativa tekstovnim geslom in so jih spodbudile obljube o boljši zapomnljivosti ter večji odpornosti na napade z grobo silo ter slovarjem. V diplomskem delu smo analizirali različne metode avtentikacije na podlagi znanja in podrobneje spoznali tri glavne kategorije grafičnih gesel: princip spomina, princip prepoznave in princip namiga ter spomina. V nadaljevanju smo predstavili različne napade na grafična gesla in analizirali njihove slabosti. V drugem delu smo naredili napad z grobo silo in slovarjem na Passpoint grafično geslo ter primerjali njegovo odpornost proti tekstovnim geslom. Graphical passwords where invented as an alternative to textual passwords and were prompted by promises of improving memorability and stronger resilience against brute force and dictionary attacks. We analysed various methods of knowledge-based authentication with special interest in to the three main categories of graphical passwords: recall-based, recognition-based and cued-recall-based. Moreover, we presented various of possible attacks on graphical passwords and analysed their weaknesses. In the second part, we made a brute force and a dictionary attack on a Passpoint graphical password and compared its resistance against textual passwords. geslo grafično geslo napad z grobo silo napad s slovarjem password graphical password brute force attack dictionary attack true true false M. Grobelnik Slovenski jezik Angleški jezik Diplomsko delo/naloga 2017-08-20 07:10:29 2017-10-27 07:39:30 2022-08-01 14:01:49 2019-07-11 16:21:52 2017 0 [Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.056.523(043.2) 20944662 URN:SI:UM:DK:PC5LCFSY UN_Grobelnik_Matej_2017.pdf UN_Grobelnik_Matej_2017.pdf 1 BC95C4FD2C81C134F937DB5BCDE8DE4B 2c39802aac94097d1cdc7eec98e4f3014f592e93a37875071bece10b85f52b33 63c38b17-7c0f-11eb-bb7a-00155d0001ca 20.500.12556/dkum/eadf9afe-916f-485b-a651-9a5944550cc5 https://dk.um.si/Dokument.php?lang=slv&id=119190 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0