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- W3004358170 abstract "Abstract A number of studies have advocated for the use of long passwords (passphrases) with the aim of attaining a balance between security and usability. This study investigated the security gains of using a multilingual passphrase policy in user generated passphrases that are based on African and Indo-European languages. The research on passwords has been largely focused on the Global North where English is often the first or only language. Targeted password guessing of English and Chinese-based passwords shows that a user's mother tongue language can influence password structure, something that reflects on security. Given a multilingual user group, for example in Africa, it is interesting to establish whether such a population can generate secure multilingual passphrases. Accordingly, the findings of this study could be extrapolated to other contexts with multilingual users. In this study, a total of 224 university students in Southern Africa were invited to take part in an experiment that involved the generation of passwords and passphrases guided by a short password and multilingual passphrase policy. The results show that English language-oriented passwords dominated the short password corpora. Moreover, the use of a multilingual passphrase policy reduced the dominance of English language-oriented passwords. Security tests using a Probabilistic Context-Free Grammar (PCFG) suggest that short passwords are weaker, with marginally more than 50% of the short passwords being guessed while none of the multilingual passphrases were guessed. Further analysis shows that short passwords oriented towards an Indo-European language were easier to guess when compared to short passwords based on African languages. Hence, this study encourages orienting passwords to other languages, with the use of a multilingual passphrase policy expected to offer more security." @default.
- W3004358170 created "2020-02-07" @default.
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- W3004358170 date "2020-05-01" @default.
- W3004358170 modified "2023-09-27" @default.
- W3004358170 title "Evaluating the strength of a multilingual passphrase policy" @default.
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- W3004358170 doi "https://doi.org/10.1016/j.cose.2020.101746" @default.
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