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A note on proactive password checking

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Published
Publication date2001
Host publicationNew Security Paradigms Workshop: proceedings : September 10th-13th, 2001, Cloudcroft, NM, USA
Place of PublicationNew York
PublisherACM
Pages127-135
Number of pages9
ISBN (Print)1581134576
<mark>Original language</mark>English

Publication series

NameProceedings of the 2001 New Security Paradigms Workshop

Abstract

Nowadays, proactive password checking algorithms are based on the philosophy of the dictionary attack, and they often fail to prevent some weak passwords with low entropy. In this paper, a new approach is proposed to deal with this new class of weak passwords by (roughly) measuring entropy. A simple example is given to exploit effective patterns to prevent low-entropy passwords as the first step of entropy-based proactiv¢ password checking.