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                            Library & Multimedia
 Testing metrics for password creation policies by attacking large sets of revealed passwords
NCJ Number
              308113

Author(s)
          Matt Weir;
                        Sudhir Aggarwal;
                        Michael Collins;
                        Henry Stern
Date Published

2010
Length
              14 pages
Annotation
              This study tests metrics for password creation policies by focusing on actual attack methodologies and real user passwords.
Abstract
              In this paper the authors attempt to determine the effectiveness of using entropy, as defined in NIST SP800-63, as a measurement of the security provided by various password creation policies. This focus on actual attack methodologies and real user passwords quite possibly makes this one of the largest studies on password security to date. In addition the authors examine what these results mean for standard password creation policies, such as minimum password length, and character set requirements. The authors model the success rate of current password cracking techniques against real user passwords. These data sets were collected from several different websites, the largest one containing over 32 million passwords. (Published Abstract Provided)
      
  
          Additional Details
Grant Number(s)
        2006-DN-BX-K007


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Report (Study/Research)


  
  
        
  Award
        E-Crime Investigative Technologies
    
  
  
Date Published: January 1, 2010
    
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