HCI and security

XIII.3 May + June 2006
Page: 38
Digital Citation

Minimal-feedback hints for remembering passwords


Authors:
Morten Hertzum

Passwords are a widely used mechanism for user authentication and are thus critical to the security of many systems. To provide effective security, passwords should be known to the password holder but remain unknown to everybody else. While personal information and real words are relatively easy for a user to remember, they make weak passwords from a security point of view because they are vulnerable to informed guessing and dictionary attacks. Strong passwords (e.g., b5j#Kv!8N) are less vulnerable to attack but at the same time more difficult to remember. However, the sheer number of passwords people must have to…




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