Technique for evaluating computer system passwords

US7581245B2 · kind B2 · utility

Assignee

• SAP AG · DE

Inventor

• Erwin Rojewski · Bad Schönborn, DE

Key dates

• Filing date: Feb 2, 2005
• Grant date: Aug 25, 2009
• Expiry date: Jan 21, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2209/26
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

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.