Tag Archives: Complexity

Password Policy Featured Image

Password Policies – Appropriate Security Techniques

How are passwords stolen? What are common password flaws? What are the security techniques to enhance the security of passwords respectively the security of the login-services? What authentication methods provide long-term security? How often should a password be changed? Which methods achieve good security while not being too complicated to be used by end-users?

This blog post discusses several methods of how passwords are stolen and provides approaches of how login-services can be secured.

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Password Entropy

Password Strength/Entropy: Characters vs. Words

This is a mathematical post which is related to the xkcd 936 comic about password strength. The central question is: What is better for passwords? A password containing a few random characters or a passphrase containing a (less) few random words? Here comes a mathematical discussion.

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