NAME

Bitcoin::BIP39 - A BIP39 implementation in Perl

VERSION

This document describes version 0.003 of Bitcoin::BIP39 (from Perl distribution Bitcoin-BIP39), released on 2021-01-09.

DESCRIPTION

This module is an implementation of BIP39 (mnemonic phrase). Features:

• Ability to choose non-English wordlist

  As long as the appropriate WordList::<LANG_CODE>::BIP39 module exists.

Keywords: bitcoin, mnemonic code, mnemonic phrase, deterministic keys

TODO

• Allow mispellings after the 4th character

• Language detection

FUNCTIONS

bip39_mnemonic_to_entropy

Usage:

bip39_mnemonic_to_entropy(%args) -> any

Convert BIP39 mnemonic phrase to entropy.

This function is not exported by default, but exportable.

Arguments ('*' denotes required arguments):

• encoding => str (default: "hex")

• language => str (default: "en")

  Pick which language wordlist to use.

  Will retrieve wordlist from WordList::<LANG_CODE>::BIP39 Perl module.

  For Chinese (simplified), use zh-simplified. For Chinese (traditional), use zh-traditional.

• mnemonic* => str

  Mnemonic phrase.

Return value: (any)

entropy_to_bip39_mnemonic

Usage:

entropy_to_bip39_mnemonic(%args) -> any

Convert entropy to BIP39 mnemonic phrase.

This function is not exported by default, but exportable.

Arguments ('*' denotes required arguments):

• entropy => buf

  Entropy (binary data).

• entropy_hex => hexbuf

  Entropy (hex-encoded).

• language => str (default: "en")

  Pick which language wordlist to use.

  Will retrieve wordlist from WordList::<LANG_CODE>::BIP39 Perl module.

  For Chinese (simplified), use zh-simplified. For Chinese (traditional), use zh-traditional.

Return value: (any)

gen_bip39_mnemonic

Usage:

gen_bip39_mnemonic(%args) -> any

Generate BIP39 mnemonic phrase.

This function is not exported by default, but exportable.

Arguments ('*' denotes required arguments):

• bits => posint (default: 128)

  Size of entropy in bits.

• language => str (default: "en")

  Pick which language wordlist to use.

  Will retrieve wordlist from WordList::<LANG_CODE>::BIP39 Perl module.

  For Chinese (simplified), use zh-simplified. For Chinese (traditional), use zh-traditional.

Return value: (any)

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Bitcoin-BIP39.

SOURCE

Source repository is at https://github.com/perlancar/perl-Bitcoin-BIP39.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Bitcoin-BIP39

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

https://en.bitcoin.it/wiki/Mnemonic_phrase

https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2021, 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.

cpanm Bitcoin::BIP39

perl -MCPAN -e shell
install Bitcoin::BIP39