I don't agree. In fact, if you use ba1@a1@a1@a1@b you are stuck again with the same problem: the password is full of similar characters, but... acceptable.

Yes, and? Because you already accept passwords with only N characters, you shouldn't reject a password of N + k characters because there's repetition in the final k characters. If it's ok for the final k characters to not be there, they can't make it easier to guess the password if they are there.

If ba1@a1 doesn't contain too much repetition, and hence is save, then ba1@a1@a1@a1@b should be save too. I mean, it doesn't get easier to break in your house if you add a lock on your door, even if that lock uses the same key as one of your other locks? It may not contribute much, but it doesn't make it go from save to unsave.

Abigail

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