Password Strength Test

Password Strength Test

Evaluating password strength is crucial for ensuring the security of user accounts and sensitive information. One of the often used assessment  methods takes into account a number of password parameters, such as, length, complexity, and unpredictability. 

Our Password Strength Tester is a useful tool that allows you to check the strength of your passwords by evaluating the first two of the aforementioned parameters -  length and complexity.  It uses those two parameters to estimate the entropy of the entered password and compare it against the recommended entropy value.

It's important to note that the tool does not assess password predictability or similarity to commonly used passwords. 

Entropy is a measure of the randomness or uncertainty in a system. In the context of password strength, entropy can be used to quantify how difficult it is to predict a password. A higher entropy corresponds to a stronger password. 

The Password Strength Tester employs  the target  entropy value of 90 bits which correspond to a 14-character long password composed of uppercase and lowercase letters, digits, and printable special symbols.

It's important to recognize that the selected target entropy value is arbitrary and based on some general guidelines:

• Passwords with entropy < 50 bits are generally considered weak.
• Passwords with entropy ranging from 50 to 70 bits provide a reasonable level of security and are suitable for non-critical systems.
• Passwords with high entropy (> 70 bits) are considered strong.

However, the recommended or sufficient value for password entropy can vary depending on the specific security requirements of a system or organization. While higher entropy generally indicates a stronger password, determining what is considered sufficient depends on factors such as the context, the sensitivity of the protected information, and potential threats.