bip39
This is a partial implementation of BIP-0039 in Java.
It was not written to work with Bitcoin but rather to have a less error-prone way to communicate keys. This means some features of the original BIP-0039 are not supported.
Supported features
- Encoding a byte array into a mnemonic
- Decoding a mnemonic into a byte array
- English wordlist
Missing features
- Wordlists for other languages
- Checksum validation
- Seed creation
Correctness
This library has not been tested extensively, but:
- what is implemented is unit tested and has good coverage
- it passes all english test vectors
Installation
TODO
Getting started
It's trivial to use:
import fr.rischmann.bip39.BIP39;
import fr.rischmann.bip39.WordList;
public class App {
public static void main(String[] args) {
byte[] data = ...
String mnemonic = BIP39.mnemonic(WordList.Language.ENGLISH, data);
... // do something with the mnemonic
byte[] tmp = BIP39.bytes(WordList.Language.ENGLISH, mnemonic);
... // do somethhing with the bytes
}
}