pwscore is a simple tool for checking quality of a password. The password is read from stdin.
The tool uses the libpwquality library to perform configurable checks for minimum length, dictionary
checking against cracklib dictionaries, and other checks.
It either reports an error if the password fails any of the checks, or it prints out the password quality
score as an integer value between 0 and 100.
The password quality score is relative to the minlen setting in the configuration file. But in general
values below 50 can be treated as moderate quality and above it fairly strong quality. Any password that
passes the quality checks (especially the mandatory cracklib check) should withstand dictionary attacks
and scores above 50 with the default minlen setting even fast brute force attacks.