BIP39 (mnemonic)

This is a pure v-lang implementation of BIP39.

WARNING: seed generation is not supported yet, only mnemonic to entropy and vice-versa is supported.

Wordlists

Only English is supported right now and is embeded on compile time. Wordlist comes from official bitcoin/bip-0039/english.txt.

Mnemonic

The module needs to be instanciated with:

m := mnemonic.new()!

Possible error are wordlist parsing issue.

Get entropy from mnemonic

words := "winter hire open opinion frown turtle this bulb mouse spell endorse thumb regret useless expand nerve improve impulse"
entropy := m.to_entropy(words)

Get mnemonic from entropy

entropy := m.generate_entropy(224)! // or your own entropy buffer
words := m.to_mnemonic(entropy)!

Tests

In order to validate implementation, tests vector from python-mnemonicvectors.json is included.

This is implemented via mnemonic_test.v

fn debug() !bool

small debug and example

fn dumps(buffer []u8) string

fn new() !BIP39

fn parse(mnemonic string) []u8

struct BIP39 {
mut:
	wordlist string
	words    []string
}

pure v implementation of BIP39 following specification from https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki

fn (b BIP39) to_entropy(mnemonics string) ![]u8

parse mnemonic

fn (b BIP39) generate_entropy(size int) ![]u8

create mnemonic

fn (b BIP39) compute_checksum(entropy []u8) string

fn (b BIP39) generate_binary_from_entropy(entropy []u8) !string

fn (b BIP39) to_mnemonic(source []u8) ![]string

fn (b BIP39) generate(size int) ![]string

fn (b BIP39) to_seed(words string, passphrase string) ![]u8

seed