Password Similarity Check

  1. Enter a password. Something like "password". (click save)
  2. Re-enter the same password, or something similar, like "password2".

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What is this?

This checks your password against previously entered passwords. It determines whether the distance from the previously entered passwords is high enough to be deemed acceptable. A distance > 0.5 is chosen here. You can adjust for your security needs.

Why make this?

First to prove that it is possible to determine plain text distance to someone, there are hashing algorithms that can be distanced but they aren't used for passwords generally.

What could use this?