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Develop Entropy-Based Password Strength Evaluation #18

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dfish3r opened this Issue Oct 13, 2014 · 1 comment

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dfish3r commented Oct 13, 2014

Password strength can be measured in entropy of the characters comprising the password string. Develop a Rule that computes password strength in terms of entropy and allow setting threshold values on entropy whereby rule validation fails is the computed entropy is below the threshold.

The computation of entropy should be based on an accepted standard or algorithm. NIST special publication 800-63-1 provides a suitable standard in "Appendix A: Estimating Entropy and Strength":

http://csrc.nist.gov/publications/nistpubs/800-63-1/SP-800-63-1.pdf

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dfish3r commented Jun 27, 2016

Fixed in PR #34.

@dfish3r dfish3r closed this Jun 27, 2016

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