Looking for Password Quality Check Code

[hrabia]

I'd like to check in my program user password for quality (mixed case, letters and numbers and so on). I've googled but without success. Any ideas?

 

Thanx in advance

Adam

[neodammer]

You could use RegEx but thats at least for me alittle on the hardside. About the only thing I can think of at the moment unless there is a way to search for a # and a letter in the same string and just use a bunch of if statements etc..

[mskeel]

A regular expression is definately the way to go. If you are unfamiliar it might be a little tough, but if you get a good helper tool like The Regex Coach and a decent tutorial you will be well on your way. Plus, if you run into trouble, you can always post here if you run into trouble or need more specific help.

[IngisKahn]

This will match a password that has at least 2 numbers, 2 lower case letters, 2 upper case letters, and 8 to 20 characters:

^(?=.*?\d.*?\d)(?=.*?[a-z].*?[a-z])(?=.*?[A-Z].*?[A-Z])[\da-zA-Z]{8,20}$

 

If you just want to check if it has multi-case and digits:

^(?=.*?\d)(?=.*?[a-z])(?=.*?[A-Z])[\da-zA-Z]$

[hrabia]

Thanx for all answers, fellows!

 

IngisKahn - super, the first RegEx is very good for my purposes!