Perl module to read and modify Apache .htpasswd files

 Authen::Htpasswd provides a convenient, object-oriented interface to
 Apache-style .htpasswd files.
 .
 It supports passwords encrypted via MD5, SHA-1, and crypt, as well as plain
 (cleartext) passwords.
 .
 Additional fields after username and password, if present, are accessible via
 the extra_info array.