Create Wallet with Bip39 not correct ?

[minhphuong1894]

Hi conor
i use your library to create new wallet eth with bip39 but it's not show correct address and private key like https://coinomi.com/recovery-phrase-tool.html
can you help me, it's very important for me !

[TOTOROYang]

byte[] seed = MnemonicUtils.generateSeed(mnemonic,"");

[ARechitsky]

Bip39 does not specify creating wallet, it's only about generating seed from mnemonic. Web3j does not support bip32+bip44, hierarchy deterministic keys. It generates exactly one key pair instead of hierarchy, where you can get "m/44'/60'/0'/0" path

[shorani]

Are you going to add support bip44?

[wl-tsui]

use bip44；
https://raw.githubusercontent.com/bitcoinj/bitcoinj/master/core/src/main/java/org/bitcoinj/crypto/HDKeyDerivation.java
code：
private static final String DERIVATION_PATH = "m/44'/60'/0'/0";
private static final int DERIVATION_PATH_PURPOSE = 44;
private static final int DERIVATION_PATH_COIN = 60;
private static final int CHANGE_INDEX = 0;
private static final int ADDRESS_INDEX = 0;

public static ECKey fromBIP44HDpath(DeterministicKey masterKey, int accountIndex) {
    DeterministicKey purposeKey = HDKeyDerivation.deriveChildKey(masterKey, DERIVATION_PATH_PURPOSE | ChildNumber.HARDENED_BIT);
    DeterministicKey rootKey = HDKeyDerivation.deriveChildKey(purposeKey, DERIVATION_PATH_COIN | ChildNumber.HARDENED_BIT);
    DeterministicKey accountKey = HDKeyDerivation.deriveChildKey(rootKey, accountIndex | ChildNumber.HARDENED_BIT);
    DeterministicKey changeKey = HDKeyDerivation.deriveChildKey(accountKey, CHANGE_INDEX);
    DeterministicKey addressKey = HDKeyDerivation.deriveChildKey(changeKey, ADDRESS_INDEX);
    return ECKey.fromPrivate(addressKey.getPrivKeyBytes());
}

[wl-tsui]

need modify create seed code。use @TOTOROYang

[AlexandrouR]

Closing as this is duplicate of #919 - please go to that issue for updated