So, if passwords have to be at least 6 characters, and at most 15, you reject a1@a1@, but accept a1@a1@b. However, you accept a1@a1@ba1@a1@, but reject a1@a1@ba1@a1@b.

Passwords can go from 'accepted' to 'rejected' by adding characters. And worse, it will be rejected because it repeats part of itself - but the part alone will be accepted.

IMO, if you want to do something with the repeatedness, you should only test the first N characters, where N is minimum amount of characters allowed.

Abigail

In reply to Re: Basic password checking by Abigail-II
in thread Basic password checking by bronto

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