Java Code Examples for org.bitcoinj.core.DumpedPrivateKey#getKey()

The following examples show how to use org.bitcoinj.core.DumpedPrivateKey#getKey() . 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: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif(String wif, WalletCreationCallback callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif: " + iae.toString());
        callback.onWalletCreated(wallet);
        return;
    }

    callback.onWalletCreated(wallet);

    RequestorBtc.getUTXOListLtcNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 2
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif2(String wif, Runnable callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        sharedManager.setLastSyncedBlock(Coders.encodeBase64(wif));
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (WrongNetworkException wne) {
        Log.e("psd", "restoreFromBlockByWif2: " + wne.toString());
        callback.run();
        return;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif2: " + iae.toString());
        callback.run();
        return;
    }

    callback.run();

    RequestorBtc.getUTXOListBch(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 3
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif(String wif, WalletCreationCallback callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif: " + iae.toString());
        callback.onWalletCreated(wallet);
        return;
    }

    callback.onWalletCreated(wallet);

    RequestorBtc.getUTXOListBch(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 4
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif2(String wif, Runnable callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        sharedManager.setLastSyncedBlock(Coders.encodeBase64(wif));
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (WrongNetworkException wne) {
        Log.e("psd", "restoreFromBlockByWif2: " + wne.toString());
        callback.run();
        return;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif2: " + iae.toString());
        callback.run();
        return;
    }

    callback.run();

    RequestorBtc.getUTXOListBtgNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 5
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif(String wif, WalletCreationCallback callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif: " + iae.toString());
        callback.onWalletCreated(wallet);
        return;
    }

    callback.onWalletCreated(wallet);

    RequestorBtc.getUTXOListBtgNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 6
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif(String wif, WalletCreationCallback callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif: " + iae.toString());
        callback.onWalletCreated(wallet);
        return;
    }

    callback.onWalletCreated(wallet);

    RequestorBtc.getUTXOList(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            UTXOListResponse utxoResponse = (UTXOListResponse) response;
            setUTXO(utxoResponse.getUTXOList());
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 7
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif2(String wif, Runnable callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        sharedManager.setLastSyncedBlock(Coders.encodeBase64(wif));
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (WrongNetworkException wne) {
        Log.e("psd", "restoreFromBlockByWif2: " + wne.toString());
        callback.run();
        return;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif2: " + iae.toString());
        callback.run();
        return;
    }

    callback.run();

    RequestorBtc.getUTXOListQtum(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 8
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif(String wif, WalletCreationCallback callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif: " + iae.toString());
        callback.onWalletCreated(wallet);
        return;
    }

    callback.onWalletCreated(wallet);

    RequestorBtc.getUTXOListQtum(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 9
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif2(String wif, Runnable callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        sharedManager.setLastSyncedBlock(Coders.encodeBase64(wif));
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (WrongNetworkException wne) {
        Log.e("psd", "restoreFromBlockByWif2: " + wne.toString());
        callback.run();
        return;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif2: " + iae.toString());
        callback.run();
        return;
    }

    callback.run();

    RequestorBtc.getUTXOListLtcNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 10
Source File: SegWitBitcoinAddressCreator.java    From token-core-android with Apache License 2.0 5 votes vote down vote up 
@Override
public String fromPrivateKey(String prvKeyHex) {
  ECKey key;
  if (prvKeyHex.length() == 51 || prvKeyHex.length() == 52) {
    DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(networkParameters, prvKeyHex);
    key = dumpedPrivateKey.getKey();
    if (!key.isCompressed()) {
      throw new TokenException(Messages.SEGWIT_NEEDS_COMPRESS_PUBLIC_KEY);
    }
  } else {
    key = ECKey.fromPrivate(NumericUtil.hexToBytes(prvKeyHex), true);
  }
  return calcSegWitAddress(key.getPubKeyHash());
}
Example 11
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlock2(String mnemonicCode, Runnable callback) {
    if (mnemonicCode.charAt(mnemonicCode.length() - 1) == ' ') {
        mnemonicCode = mnemonicCode.substring(0, mnemonicCode.length() - 1);
    }

    DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, anyToWif(mnemonicCode));
    ECKey key = dumpedPrivateKey.getKey();
    wallet = new Wallet(params);
    wallet.importKey(key);
    mnemonicKey = mnemonicCode;
    sharedManager.setLastSyncedBlock(Coders.encodeBase64(mnemonicKey));

    walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toBase58();
    walletFriendlyAddress = testReadonlyAddress == null ? walletFriendlyAddress : testReadonlyAddress;

    callback.run();

    RequestorBtc.getUTXOListKmdNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItem> utxos = (List<UTXOItem>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 12
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlock0(String mnemonicCode, Runnable callback) {
        if (mnemonicCode.charAt(mnemonicCode.length() - 1) == ' ') {
            mnemonicCode = mnemonicCode.substring(0, mnemonicCode.length() - 1);
        }

        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, anyToWif(mnemonicCode));
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        mnemonicKey = mnemonicCode;
//        sharedManager.setLastSyncedBlock(Coders.encodeBase64(mnemonicKey));

        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toBase58();
        walletFriendlyAddress = testReadonlyAddress == null ? walletFriendlyAddress : testReadonlyAddress;

        callback.run();

        RequestorBtc.getUTXOListKmdNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
            @Override
            public void onSuccess(Object response) {
                List<UTXOItem> utxos = (List<UTXOItem>)response;
                setUTXO(utxos);
            }

            @Override
            public void onFailure(String msg) {

            }
        });
    }
Example 13
Source File: PrivateKey.java    From evt4j with MIT License 5 votes vote down vote up 
private PrivateKey(@NotNull String wif) throws WifFormatException {
    NetworkParameters networkParam = MainNetParams.get();

    if (wif.length() != 51 && wif.length() != 52) {
        throw new WifFormatException("Wif length must be 51 or 52");
    }

    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(networkParam, wif);
        key = dumpedPrivateKey.getKey();
    } catch (AddressFormatException ex) {
        throw new WifFormatException(ex.getMessage(), ex);
    }
}
Example 14
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void createWallet2_wif(String passphrase, Runnable callback) {
        wallet = new Wallet(params);
//        DeterministicSeed seed = wallet.getKeyChainSeed();
//
//        mnemonicKey = Joiner.on(" ").join(seed.getMnemonicCode());
        mnemonicKey = wallet.freshReceiveKey().getPrivateKeyAsWiF(params);
        sharedManager.setLastSyncedBlock(Coders.encodeBase64(mnemonicKey));
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, mnemonicKey);
        ECKey key = dumpedPrivateKey.getKey();
        wallet.importKey(key);

        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        walletFriendlyAddress = testReadonlyAddress == null ? walletFriendlyAddress : testReadonlyAddress;
        callback.run();
    }
Example 15
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif(String wif, WalletCreationCallback callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif: " + iae.toString());
        callback.onWalletCreated(wallet);
        return;
    }

    callback.onWalletCreated(wallet);

    RequestorBtc.getUTXOListSbtcNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            try {
                List<UTXOItem> utxos = (List<UTXOItem>) response;
                setUTXO(utxos);
            } catch (ClassCastException cce) {
                Log.d("psd", "restoreFromBlockByWif - getUTXOList ClassCastException: " + cce.getMessage());
                cce.printStackTrace();
            }

        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 16
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 5 votes vote down vote up 
public void restoreFromBlockByWif(String wif, WalletCreationCallback callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif: " + iae.toString());
        callback.onWalletCreated(wallet);
        return;
    }

    callback.onWalletCreated(wallet);

    RequestorBtc.getUTXOListDgbNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItemDgb> utxos = (List<UTXOItemDgb>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 17
Source File: BitcoinAddressCreator.java    From token-core-android with Apache License 2.0 5 votes vote down vote up 
@Override
public String fromPrivateKey(String prvKeyHex) {
  ECKey key;
  if (prvKeyHex.length() == 51 || prvKeyHex.length() == 52) {
    DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(networkParameters, prvKeyHex);
    key = dumpedPrivateKey.getKey();
  } else {
    key = ECKey.fromPrivate(NumericUtil.hexToBytes(prvKeyHex));
  }
  return key.toAddress(this.networkParameters).toBase58();
}
Example 18
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 4 votes vote down vote up 
public void restoreFromBlockByWif2(String wif, Runnable callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        sharedManager.setLastSyncedBlock(Coders.encodeBase64(wif));
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (WrongNetworkException wne) {
        Log.e("psd", "restoreFromBlockByWif2: " + wne.toString());
        callback.run();
        return;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif2: " + iae.toString());
        callback.run();
        return;
    }

    callback.run();

    RequestorBtc.getUTXOListSbtcNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            try {
                List<UTXOItem> utxos = (List<UTXOItem>)response;
                setUTXO(utxos);
            } catch (ClassCastException cce) {
                Log.d("psd", "restoreFromBlockByWif2 - getUTXOList ClassCastException: " + cce.getMessage());
            }
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 19
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 4 votes vote down vote up 
public void restoreFromBlockByWif2(String wif, Runnable callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        sharedManager.setLastSyncedBlock(Coders.encodeBase64(wif));
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (WrongNetworkException wne) {
        FirebaseCrash.report(wne);
        Log.e("psd", "restoreFromBlockByWif2: " + wne.toString());
        callback.run();
        return;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif2: " + iae.toString());
        callback.run();
        return;
    } catch (NullPointerException npe) {
        FirebaseCrash.report(npe);
        Log.e("psd", "restoreFromBlockByWif2: " + npe.toString());
        callback.run();
        return;
    }

    callback.run();

    RequestorBtc.getUTXOList(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            UTXOListResponse utxoResponse = (UTXOListResponse) response;
            setUTXO(utxoResponse.getUTXOList());
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}
Example 20
Source File: WalletManager.java    From guarda-android-wallets with GNU General Public License v3.0 4 votes vote down vote up 
public void restoreFromBlockByWif2(String wif, Runnable callback) {
    wif = wif.trim();
    try {
        DumpedPrivateKey dumpedPrivateKey = DumpedPrivateKey.fromBase58(params, wif);
        ECKey key = dumpedPrivateKey.getKey();
        wallet = new Wallet(params);
        wallet.importKey(key);
        restFromWif = true;
        sharedManager.setLastSyncedBlock(Coders.encodeBase64(wif));
        walletFriendlyAddress = wallet.getImportedKeys().get(0).toAddress(params).toString();
        wifKey = wif;
    } catch (WrongNetworkException wne) {
        Log.e("psd", "restoreFromBlockByWif2: " + wne.toString());
        callback.run();
        return;
    } catch (AddressFormatException afe) {
        Log.e("psd", "restoreFromBlockByWif2: " + afe.toString());
        callback.run();
        return;
    } catch (IllegalArgumentException iae) {
        FirebaseCrash.report(iae);
        Log.e("psd", "restoreFromBlockByWif2: " + iae.toString());
        callback.run();
        return;
    }

    callback.run();

    RequestorBtc.getUTXOListDgbNew(walletFriendlyAddress, new ApiMethods.RequestListener() {
        @Override
        public void onSuccess(Object response) {
            List<UTXOItemDgb> utxos = (List<UTXOItemDgb>)response;
            setUTXO(utxos);
        }

        @Override
        public void onFailure(String msg) {

        }
    });
}