Paper 2018/1063

Your Culture is in Your Password: An Analysis of a Demographically-diverse Password Dataset

Mashael AlSabah, Gabriele Oligeri, and Ryan Riley

Abstract

A large number of studies on passwords make use of passwords leaked by attackers who compromised online services. Frequently, these leaks contain only the passwords themselves, or basic information such as usernames or email addresses. While metadata-rich leaks exist, they are often limited in the variety of demographics they cover. In this work, we analyze a meta-data rich data leak from a Middle Eastern bank with a demographically-diverse user base. We provide an analysis of passwords created by groups of people of different cultural backgrounds, some of which are under-represented in existing data leaks, e.g., Arab, Filipino, Indian, and Pakistani. The contributions provided by this work are many-fold. First, our results contribute to the existing body of knowledge regarding how users include personal information in their passwords. Second, we illustrate the differences that exist in how users from different cultural/linguistic backgrounds create passwords. Finally, we study the (empirical and theoretical) guessability of the dataset based on two attacker models, and show that a state of the art password strength estimator inflates the strength of passwords created by users from non-English speaking backgrounds. We improve its estimations by training it with contextually relevant information.

Metadata
Available format(s)
PDF
Publication info
Published elsewhere. MINOR revision.Computers & Security
DOI
10.1016/j.cose.2018.03.014
Contact author(s)
msalsabah @ hbku edu
History
2018-11-09: received
Short URL
https://ia.cr/2018/1063
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2018/1063,
      author = {Mashael AlSabah and Gabriele Oligeri and Ryan Riley},
      title = {Your Culture is in Your Password: An Analysis of a Demographically-diverse Password Dataset},
      howpublished = {Cryptology ePrint Archive, Paper 2018/1063},
      year = {2018},
      doi = {10.1016/j.cose.2018.03.014},
      note = {\url{https://eprint.iacr.org/2018/1063}},
      url = {https://eprint.iacr.org/2018/1063}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.