Example #1
0
 private static void addKey() {
   ECKey key;
   long creationTimeSeconds = getCreationTimeSeconds();
   if (options.has("privkey")) {
     String data = (String) options.valueOf("privkey");
     if (data.startsWith("5J") || data.startsWith("5H") || data.startsWith("5K")) {
       DumpedPrivateKey dpk;
       try {
         dpk = new DumpedPrivateKey(params, data);
       } catch (AddressFormatException e) {
         System.err.println("Could not parse dumped private key " + data);
         return;
       }
       key = dpk.getKey();
     } else {
       byte[] decode = Utils.parseAsHexOrBase58(data);
       if (decode == null) {
         System.err.println("Could not understand --privkey as either hex or base58: " + data);
         return;
       }
       key = new ECKey(new BigInteger(1, decode));
     }
     if (options.has("pubkey")) {
       // Give the user a hint.
       System.out.println("You don't have to specify --pubkey when a private key is supplied.");
     }
     key.setCreationTimeSeconds(creationTimeSeconds);
   } else if (options.has("pubkey")) {
     byte[] pubkey = Utils.parseAsHexOrBase58((String) options.valueOf("pubkey"));
     key = new ECKey(null, pubkey);
     key.setCreationTimeSeconds(creationTimeSeconds);
   } else {
     // Freshly generated key.
     key = new ECKey();
     if (creationTimeSeconds > 0) key.setCreationTimeSeconds(creationTimeSeconds);
   }
   if (wallet.findKeyFromPubKey(key.getPubKey()) != null) {
     System.err.println("That key already exists in this wallet.");
     return;
   }
   try {
     if (wallet.isEncrypted()) {
       if (password == null || !wallet.checkPassword(password)) {
         System.err.println("The password is incorrect.");
         return;
       }
       key = key.encrypt(wallet.getKeyCrypter(), wallet.getKeyCrypter().deriveKey(password));
     }
     wallet.addKey(key);
   } catch (KeyCrypterException kce) {
     System.err.println(
         "There was an encryption related error when adding the key. The error was '"
             + kce.getMessage()
             + "'.");
   }
   System.out.println(key.toAddress(params) + " " + key);
 }
Example #2
0
  @Test
  public void testReceiveCoinbaseTransaction() throws Exception {
    // Block 169482 (hash 0000000000000756935f1ee9d5987857b604046f846d3df56d024cdb5f368665)
    // contains coinbase transactions that are mining pool shares.
    // The private key MINERS_KEY is used to check transactions are received by a wallet correctly.

    // The address for this private key is 1GqtGtn4fctXuKxsVzRPSLmYWN1YioLi9y.
    final String MINING_PRIVATE_KEY = "5JDxPrBRghF1EvSBjDigywqfmAjpHPmTJxYtQTYJxJRHLLQA4mG";

    final long BLOCK_NONCE = 3973947400L;
    final Coin BALANCE_AFTER_BLOCK = Coin.valueOf(22223642);
    final NetworkParameters PARAMS = MainNetParams.get();

    Block block169482 =
        PARAMS
            .getDefaultSerializer()
            .makeBlock(ByteStreams.toByteArray(getClass().getResourceAsStream("block169482.dat")));

    // Check block.
    assertNotNull(block169482);
    block169482.verify(169482, EnumSet.noneOf(Block.VerifyFlag.class));
    assertEquals(BLOCK_NONCE, block169482.getNonce());

    StoredBlock storedBlock =
        new StoredBlock(block169482, BigInteger.ONE, 169482); // Nonsense work - not used in test.

    // Create a wallet contain the miner's key that receives a spend from a coinbase.
    ECKey miningKey = DumpedPrivateKey.fromBase58(PARAMS, MINING_PRIVATE_KEY).getKey();
    assertNotNull(miningKey);
    Context context = new Context(PARAMS);
    Wallet wallet = new Wallet(context);
    wallet.importKey(miningKey);

    // Initial balance should be zero by construction.
    assertEquals(Coin.ZERO, wallet.getBalance());

    // Give the wallet the first transaction in the block - this is the coinbase tx.
    List<Transaction> transactions = block169482.getTransactions();
    assertNotNull(transactions);
    wallet.receiveFromBlock(transactions.get(0), storedBlock, NewBlockType.BEST_CHAIN, 0);

    // Coinbase transaction should have been received successfully but be unavailable to spend (too
    // young).
    assertEquals(BALANCE_AFTER_BLOCK, wallet.getBalance(BalanceType.ESTIMATED));
    assertEquals(Coin.ZERO, wallet.getBalance(BalanceType.AVAILABLE));
  }