Data::Password::zxcvbn::MatchList - a collection of matches for a password

Attributes

"password"
       Required string, the password this list is about.

   "matches"
       Arrayref, the actual list of matches.

   "guesses"
       The estimated number of attempts that a generic password cracker would need to guess the whole
       "password". This will be set for objects returned by ""most_guessable_match_list"", not for those
       returned by ""omnimatch"".

Author

       Gianni Ceccarelli <gianni.ceccarelli@broadbean.com>

Copyright And License

       This software is copyright (c) 2022 by BroadBean UK, a CareerBuilder Company.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5
       programming language system itself.

perl v5.36.0                                       2023-04-04             Data::Password::zxcvbn::MatchList(3pm)

Description

       zxcvbn estimates the strength of a password by guessing which way a generic password cracker would
       produce it, and then guessing after how many tries it would produce it.

       This class represents a list of guesses ("matches"), covering different substrings of a password.

Methods

"omnimatch"
         my $match_list = Data::Password::zxcvbn::MatchList->omnimatch($password,\%opts);

       Main constructor (the name comes from the original JS implementation). Calls "->make($password,\%opts)"
       on all the "Data::Password::zxcvbn::Match::*" classes (or the ones in "@{$opts{modules}}"), combines all
       the matches, and returns a "MatchList" holding them.

   "most_guessable_match_list"
         my $minimal_list = $match_list->most_guessable_match_list;

       This method extracts, from the "matches" of the invocant, a list of non-overlapping matches with minimum
       guesses. That list should represent the way that a generic password cracker would guess the "password",
       and as such is the one that the main function will use.

   "guesses_log10"
       The logarithm in base 10 of ""guesses"".

   "score"
         my $score = $match_list->score;

       Returns an integer from 0-4 (useful for implementing a strength bar). See
       "Data::Password::zxcvbn::TimeEstimate::guesses_to_score".

   "get_feedback"
         my %feedback = %{ $match_list->get_feedback };

         my %feedback = %{ $match_list->get_feedback($max_score_for_feedback) };

       If there's no matches, returns the result of ""feedback_for_no_matches"".

       If the match list "score" is above $max_score_for_feedback (default 2), returns the result of
       ""feedback_above_threshold"".

       Otherwise, collects all the feedback from the "matches", and returns it, merged with the result of
       ""feedback_below_threshold"" (suggestions are appended, but the warning from the matches takes
       precendence).

   "feedback_for_no_matches"
       Returns a feedback for when the password didn't match any of our heuristics. It contains no warning, and
       some simple common suggestions.

   "feedback_above_threshold"
       Returns a feedback for when the password scored above the threshold passed to ""get_feedback"" (i.e. the
       password is "good"). It's an empty feedback.

   "feedback_below_threshold"
       Returns a feedback for when the password scored below the threshold passed to ""get_feedback"" (i.e. the
       password is "bad"). It suggests to add some words.

Name

       Data::Password::zxcvbn::MatchList - a collection of matches for a password

Synopsis

         use Data::Password::zxcvbn::MatchList;

         my $list = Data::Password::zxcvbn::MatchList->omnimatch($password)
                     ->most_guessable_match_list;