Posix-style passwd file module
This module loads entries from an alternate password file using the fgetpwent(3) API, which requires the file to be formatted the same as the UNIX /etc/passwd file. No group name lookups are done.
the path to the passwd file containing the credential information.
The password comparison module to use. If it is not set, the default password comparison mode is plain-text. To use UNIX crypt style passwords, like /etc/passwd does, set this to "crypt".