HYPPOCRATES: a new proactive password checker

  • Authors:
  • Carlo Blundo;Paolo D'Arco;Alfredo De Santis;Clemente Galdi

  • Affiliations:
  • Dipartimento di Informatica ed Applicazioni, Università di Salerno, Via S. Allende, 43, I84081 Baronissi (SA), Italy;Dipartimento di Informatica ed Applicazioni, Università di Salerno, Via S. Allende, 43, I84081 Baronissi (SA), Italy;Dipartimento di Informatica ed Applicazioni, Università di Salerno, Via S. Allende, 43, I84081 Baronissi (SA), Italy;Department of Computer Engineering and Informatics, Computer Technology Institute, University of Patras, 26500 Rio, Greece and Dipartimento di Informatica ed Applicazioni, Università di Saler ...

  • Venue:
  • Journal of Systems and Software
  • Year:
  • 2004

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Abstract

In this paper, we propose a new proactive password checker, a program which prevents the choice of easy-to-guess passwords. The checker uses a decision tree, constructed applying the minimum description length principle and a pessimistic pruning technique. Experimental results show a substantial improvement in performance of this checker compared to previous proposals. Moreover, the whole software package we provide has a user-friendly interface, enabling the system administrator to configure an ad hoc password proactive checker, in order to satisfy certain policy requirements.