NAME

App::genpw - Generate random password, with patterns and wordlists

VERSION

This document describes version 0.009 of App::genpw (from Perl distribution App-genpw), released on 2018-07-01.

SYNOPSIS

See the included script genpw.

FUNCTIONS

genpw

Usage:

 genpw(%args) -> [status, msg, result, meta]

Generate random password, with patterns and wordlists.

This is yet another utility to generate random password. Features:

  • Allow specifying pattern(s), e.g. '%8a%s' means 8 random alphanumeric characters followed by a symbol.

  • Use words from wordlists.

  • Use strong random source when available, otherwise fallback to Perl's builtin rand().

Examples:

By default generate base56 password 12-20 characters long (-p %12$20B):

 % genpw
 Uk7Zim6pZeMTZQUyaM

Generate 5 passwords instead of 1:

 % genpw 5
 igYiRhUb5t9d9f3J
 b7D44pnxZHJGQzDy2eg
 RXDtqjMvp2hNAdQ
 Xz3DmAL94akqtZ5xb
 7TfANv9yxAaMGXm

Generate random digits between 10 and 12 characters long:

 % genpw -p '%10$12d'
 55597085674

Generate password in the form of a random word + 4 random digits. Words will be fed from STDIN:

 % genpw -p '%w%4d' < /usr/share/dict/words
 shafted0412

Like the above, but words will be fetched from WordList::* modules. You need to install the genpw-wordlist CLI. By default, will use wordlist from WordList::EN::Enable:

 % genpw-wordlist -p '%w%4d'
 sedimentologists8542

Generate a random GUID:

 % genpw -p '%8h-%4h-%4h-%4h-%12h'
 ff26d142-37a8-ecdf-c7f6-8b6ae7b27695

Like the above, but in uppercase:

 % genpw -p '%8h-%4h-%4h-%4h-%12h' -U
 22E13D9E-1187-CD95-1D05-2B92A09E740D

Use configuration file to avoid typing the pattern every time, put this in ~/genpw.conf:

 [profile=guid]
 patterns = "%8h-%4h-%4h-%4h-%12h"

then:

 % genpw -P guid
 008869fa-177e-3a46-24d6-0900a00e56d5

This function is not exported.

Arguments ('*' denotes required arguments):

  • case => str (default: "default")

    Force casing.

    default means to not change case. random changes casing some letters randomly to lower-/uppercase. lower forces lower case. upper forces UPPER CASE. title forces Title case.

  • len => posint

    If no pattern is supplied, will generate random alphanum characters with this exact length.

  • max_len => posint

    If no pattern is supplied, will generate random alphanum characters with this maximum length.

  • min_len => posint

    If no pattern is supplied, will generate random alphanum characters with this minimum length.

  • num => int (default: 1)

  • patterns => array[str]

    Pattern(s) to use.

    A pattern is string that is similar to a printf pattern. %P (where P is certain letter signifying a format) will be replaced with some other string. %Nw (where N is a number) will be replaced by a word of length N, %N$MP (where N and M is a number) will be replaced by a word of length between N and M. Anything else will be used as-is. Available conversions:

     %l   Random Latin letter (A-Z, a-z)
     %d   Random digit (0-9)
     %h   Random hexdigit (0-9a-f)
     %a   Random letter/digit (Alphanum) (A-Z, a-z, 0-9; combination of %l and %d)
     %s   Random ASCII symbol, e.g. "-" (dash), "_" (underscore), etc.
     %x   Random letter/digit/ASCII symbol (combination of %a and %s)
     %m   Base64 character (A-Z, a-z, 0-9, +, /)
     %b   Base58 character (A-Z, a-z, 0-9 minus IOl0)
     %B   Base56 character (A-Z, a-z, 0-9 minus IOol01)
     %%   A literal percent sign
     %w   Random word

Returns an enveloped result (an array).

First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (result) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.

Return value: (any)

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/App-genpw.

SOURCE

Source repository is at https://github.com/perlancar/perl-App-genpw.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=App-genpw

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

SEE ALSO

genpw-base56.

genpw-base64.

genpw-id.

genpw-wordlist.

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2018 by perlancar@cpan.org.

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