Efficient directory harvest attacks

Authors:
Boldizsár Bencsáth;István Vajda
Affiliations:
Laboratory of Cryptography and Systems Security, Department of Telecommunications, Budapest University of Technology and Economics, Hungary;Laboratory of Cryptography and Systems Security, Department of Telecommunications, Budapest University of Technology and Economics, Hungary
Venue:
CTS'05 Proceedings of the 2005 international conference on Collaborative technologies and systems
Year:
2005

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Abstract

In this paper the E-mail Directory Harvest Attacks (DHA) are investigated. We elaborated a method for optimizing the wordlist size used by the attacker in a resource limited environment. We analyzed the results and proved that our method is optimal. We also present an efficient countermeasure against DHA.