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Choosing the most effective word-mangling rules to use when performing a dictionary-based password cracking attack can be a difficult task. In this paper we discuss a new method that generates password structures in highest probability order. We first automatically create a probabilistic context-free grammar based upon a training set of previously disclosed passwords. This grammar then allows us to...
This paper describes three projects that are part of a research agenda in support of digital forensic investigations. The R&D activities involve developing new technologies and forensic tools to address real-world problems related to electronic/digital crime. The three projects are the DNA project, dedicated to cryptanalysis of passwords; the UnMask project, which addresses the issue of automated...
This paper describes the design and development of a software system to support law enforcement in investigating and prosecuting email based crimes. It focuses on phishing scams which use emails to trick users into revealing personal data. The system described in this paper, called the undercover multipurpose anti-spoofing kit (UnMask), will enable investigators to reduce the time and effort needed...
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