Information security – Access control or authentication – Network
Reexamination Certificate
2005-02-02
2009-08-25
Lipman, Jacob (Department: 2134)
Information security
Access control or authentication
Network
C726S018000
Reexamination Certificate
active
07581245
ABSTRACT:
A technique for evaluating computer system passwords is disclosed. The technique commences with obtaining, for each user of a computer system, password information generated by performing a security procedure on a password entry. The technique sequentially performs, for each user name, the security procedure on sequenced entries of a dictionary until either a match with the password information is detected or the sequenced entries are exhausted. The technique adjusts the sequence of a sequenced entry in the dictionary based on the number of matches detected for the sequenced entry, so that analysis of subsequent computer system password lists more rapidly identify passwords that may present a security risk to the computer system.
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Bishop, M., et al. “Improving System Security Via Proactive Password Checking,”Computers&Security, vol. 14, No. 3, 1995, pp. 233-249, XP004002020.
Spafford, E.H., “Preventing Weak Password Choices,”Perdue Technical Report, CSD-TR-91-28, XX, XX, Mar. 1, 1991, pp. 1-10, XP000513986.
Buckley Maschoff & Talwalkar LLC
Lipman Jacob
SAP (AG)
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