在指定范围内猜测用户密码需要多长时间？

Question

I am using blowfish in php using the crypt function. I would like to know how long it would take to guess the users passwords if the range of the passwords are 0001 - 9999?

Should I implement another input password value for the user.

Answer 1

This basically gives you 10,000 combinations and it will be quite fast (instant) to guess it.

Check this old table its much faster now Password Recovery Speeds