Java Code Examples for net.bither.bitherj.crypto.hd.DeterministicKey#deriveHardened()

The following examples show how to use net.bither.bitherj.crypto.hd.DeterministicKey#deriveHardened() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: HDMSingular.java    From bitherj with Apache License 2.0 6 votes vote down vote up 
private DeterministicKey rootFromMnemonic(byte[] mnemonic) {
    try {
        byte[] hdSeed = HDMKeychain.seedFromMnemonic(mnemonic);
        DeterministicKey master = HDKeyDerivation.createMasterPrivateKey(hdSeed);
        DeterministicKey purpose = master.deriveHardened(44);
        DeterministicKey coinType = purpose.deriveHardened(0);
        DeterministicKey account = coinType.deriveHardened(0);
        DeterministicKey external = account.deriveSoftened(0);
        master.wipe();
        purpose.wipe();
        coinType.wipe();
        account.wipe();
        return external;
    } catch (MnemonicException.MnemonicLengthException e) {
        throw new RuntimeException(e);
    }
}
Example 2
Source File: AbstractHD.java    From bitherj with Apache License 2.0 5 votes vote down vote up 
protected DeterministicKey getAccount(DeterministicKey master) {
    DeterministicKey purpose = master.deriveHardened(44);
    DeterministicKey coinType = purpose.deriveHardened(0);
    DeterministicKey account = coinType.deriveHardened(0);
    purpose.wipe();
    coinType.wipe();
    return account;
}
Example 3
Source File: DesktopHDMKeychain.java    From bitherj with Apache License 2.0 5 votes vote down vote up 
public static boolean checkPassword(String keysString, CharSequence password) throws
        MnemonicException.MnemonicLengthException {
    String[] passwordSeeds = QRCodeUtil.splitOfPasswordSeed(keysString);
    String address = Base58.hexToBase58WithAddress(passwordSeeds[0]);
    String encreyptString = Utils.joinString(new String[]{passwordSeeds[1], passwordSeeds[2],
            passwordSeeds[3]}, QRCodeUtil.QR_CODE_SPLIT);
    byte[] seed = new EncryptedData(encreyptString).decrypt(password);
    MnemonicCode mnemonic = MnemonicCode.instance();

    byte[] s = mnemonic.toSeed(mnemonic.toMnemonic(seed), "");

    DeterministicKey master = HDKeyDerivation.createMasterPrivateKey(s);

    DeterministicKey purpose = master.deriveHardened(44);

    DeterministicKey coinType = purpose.deriveHardened(0);

    DeterministicKey account = coinType.deriveHardened(0);

    DeterministicKey external = account.deriveSoftened(0);

    external.clearPrivateKey();

    DeterministicKey key = external.deriveSoftened(0);
    boolean result = Utils.compareString(address, Utils.toAddress(key.getPubKeyHash()));
    key.wipe();

    return result;
}
Example 4
Source File: HDAccount.java    From bitherj with Apache License 2.0 5 votes vote down vote up 
protected DeterministicKey getAccount(DeterministicKey master) {
    DeterministicKey purpose = master.deriveHardened(44);
    DeterministicKey coinType = purpose.deriveHardened(0);
    DeterministicKey account = coinType.deriveHardened(0);
    purpose.wipe();
    coinType.wipe();
    return account;
}
Example 5
Source File: HDAccount.java    From bitherj with Apache License 2.0 5 votes vote down vote up 
public String xPubB58(CharSequence password) throws MnemonicException
        .MnemonicLengthException {
    DeterministicKey master = masterKey(password);
    DeterministicKey purpose = master.deriveHardened(44);
    DeterministicKey coinType = purpose.deriveHardened(0);
    DeterministicKey account = coinType.deriveHardened(0);
    String xpub = account.serializePubB58();
    master.wipe();
    purpose.wipe();
    coinType.wipe();
    account.wipe();
    return xpub;
}
Example 6
Source File: HDMKeychain.java    From bitherj with Apache License 2.0 5 votes vote down vote up 
public boolean checkSingularBackupWithPassword(CharSequence password) {
    if (isInRecovery()) {
        return true;
    }
    if (getAllCompletedAddresses().size() == 0) {
        return true;
    }
    String backup = AbstractDb.addressProvider.getSingularModeBackup(getHdSeedId());
    if (backup == null) {
        return true;
    }
    EncryptedData encrypted = new EncryptedData(backup);
    byte[] mnemonic = encrypted.decrypt(password);
    boolean result;
    try {
        byte[] seed = seedFromMnemonic(mnemonic);
        byte[] pub = getAllCompletedAddresses().get(0).getPubCold();
        DeterministicKey master = HDKeyDerivation.createMasterPrivateKey(seed);
        DeterministicKey purpose = master.deriveHardened(44);
        DeterministicKey coinType = purpose.deriveHardened(0);
        DeterministicKey account = coinType.deriveHardened(0);
        DeterministicKey external = account.deriveSoftened(0);
        DeterministicKey first = external.deriveSoftened(0);
        master.wipe();
        purpose.wipe();
        coinType.wipe();
        account.wipe();
        external.wipe();
        Utils.wipeBytes(seed);
        result = Arrays.equals(first.getPubKey(), pub);
        first.wipe();
    } catch (MnemonicException.MnemonicLengthException e) {
        e.printStackTrace();
        result = false;
    }
    Utils.wipeBytes(mnemonic);
    return result;
}
Example 7
Source File: HDMKeychain.java    From bitherj with Apache License 2.0 5 votes vote down vote up 
public static boolean checkPassword(String keysString, CharSequence password) throws
        MnemonicException.MnemonicLengthException {
    String[] passwordSeeds = QRCodeUtil.splitOfPasswordSeed(keysString);
    String address = Base58.hexToBase58WithAddress(passwordSeeds[0]);
    String encreyptString = Utils.joinString(new String[]{passwordSeeds[1], passwordSeeds[2],
            passwordSeeds[3]}, QRCodeUtil.QR_CODE_SPLIT);
    byte[] seed = new EncryptedData(encreyptString).decrypt(password);
    MnemonicCode mnemonic = MnemonicCode.instance();

    byte[] s = mnemonic.toSeed(mnemonic.toMnemonic(seed), "");

    DeterministicKey master = HDKeyDerivation.createMasterPrivateKey(s);

    DeterministicKey purpose = master.deriveHardened(44);

    DeterministicKey coinType = purpose.deriveHardened(0);

    DeterministicKey account = coinType.deriveHardened(0);

    DeterministicKey external = account.deriveSoftened(0);

    external.clearPrivateKey();

    DeterministicKey key = external.deriveSoftened(0);
    boolean result = Utils.compareString(address, Utils.toAddress(key.getPubKeyHash()));
    key.wipe();

    return result;
}
Example 8
Source File: HDAccountCold.java    From bitherj with Apache License 2.0 5 votes vote down vote up 
public String xPubB58(CharSequence password) throws MnemonicException
        .MnemonicLengthException {
    DeterministicKey master = masterKey(password);
    DeterministicKey purpose = master.deriveHardened(44);
    DeterministicKey coinType = purpose.deriveHardened(0);
    DeterministicKey account = coinType.deriveHardened(0);
    String xpub = account.serializePubB58();
    master.wipe();
    purpose.wipe();
    coinType.wipe();
    account.wipe();
    return xpub;
}