Date Published: December 2013
Author(s)
Kevin Killourhy (NIST), Yee-Yin Choong (NIST), Mary Theofanos (NIST)
A password policy may seem formal in the sense that it is written in a legalistic language, giving the impression of a binding contract. However, such policies are informal in the logical sense that the policy statements are not written in a clear, unambiguous form. In password policy research at the National Institute of Standards and Technology, a formal language has been developed to explicitly capture what is expected of the user. This document presents that formal language grammar and the procedure that has been developed to translate the statements in the informal language of standard password policies to the formal language.
A password policy may seem formal in the sense that it is written in a legalistic language, giving the impression of a binding contract. However, such policies are informal in the logical sense that the policy statements are not written in a clear, unambiguous form. In password policy research at...
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A password policy may seem formal in the sense that it is written in a legalistic language, giving the impression of a binding contract. However, such policies are informal in the logical sense that the policy statements are not written in a clear, unambiguous form. In password policy research at the National Institute of Standards and Technology, a formal language has been developed to explicitly capture what is expected of the user. This document presents that formal language grammar and the procedure that has been developed to translate the statements in the informal language of standard password policies to the formal language.
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Keywords
authentication; passwords; password policy; cybersecurity; computer security; password policy formal grammar
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