Conference Contribution Details
Mandatory Fields
Hazel Murray and David Malone
Passwordscon 2020 at Internetdagarna
Multi-armed bandit approach to password guessing
Online
Oral Presentation
2021
()
0
Optional Fields
The multi-armed bandit is a mathematical interpretation of the problem a gambler faces when confronted with a number of different machines (bandits). The gambler wants to explore different machines to discover which machine offers the best rewards, but simultaneously wants to exploit the most profitable machine. A password guesser is faced with a similar dilemma. They have lists of leaked password sets, dictionaries of words, and demographic information about the users, but they don't know which dictionary will reap the best rewards. In this talk, we describe our framework for using the multi-armed bandit problem in the context of the password guesser and use some examples to show that it can be effective.