RegEx Password Validation

What text editor, programming language, or other miscellaneous utility are you using for password validation?

Since \W means spaces too, I would use
(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9~!@#$%^&*]).{8,}

HTH,
Dan

Without start and end of string placeholders, this validation may be vulnerable to failure. Details given here: https://www.experts-exchange.com/questions/28411422/VBScript-Regex.html?anchorAnswerId=39997831#a39997831

Terry,

I initially thought that too, but on further examination it shouldn't. Because the requirement only says, "at least 8 characters," the pattern holds. If it instead said, "between 8 and 15 characters," for example, then further restriction would be needed.

Ah, yes, good point! :-)

problem with this expression:
(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9~!@#$%^&*]).{8,}

is that i need to accept any special character on the keyboard.

Considering you use a non-Unicode variant, \W means "anything that is not a letter A to Z, a to z, a number 0 to 9 or an underscore _".

This makes _ to not be allowed as a special character, while it will accept space, tab, carriage returns, bell, etc.  

It's better, IMO to specify exactly what is a "special character". \W is faster to write/read, but that's where its merits stop.

If you want to "accept any special character on the keyboard", you need to list them.

(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9!@#\$%\^&\*\(\)_\+-=\[\]{}\\\|;':",\./<>\?).{8,}

So that should work?

Yup.