Examples with ECKey org.ethereum.crypto.ECKey used on opensource projects

Example 36 with ECKey

use of org.ethereum.crypto.ECKey in project account-identity by cryptofiat.

the class EthereumKeyGenerator method main.

public static void main(String[] args) {
    ECKey ecKey = new ECKey();
    System.out.println("Private key:\n" + Hex.toHexString(ecKey.getPrivKeyBytes()));
    System.out.println("Address:\n0x" + Hex.toHexString(ecKey.getAddress()));
}

Example 37 with ECKey

use of org.ethereum.crypto.ECKey in project rskj by rsksmart.

the class ProofOfWorkRule method validFallbackBlockSignature.

public static boolean validFallbackBlockSignature(Constants constants, BlockHeader header, byte[] signatureBytesRLP) {
    if (header.getBitcoinMergedMiningCoinbaseTransaction() != null) {
        return false;
    }
    if (header.getBitcoinMergedMiningMerkleProof() != null) {
        return false;
    }
    byte[] fallbackMiningPubKeyBytes;
    boolean isEvenBlockNumber = header.getNumber() % 2 == 0;
    if (isEvenBlockNumber) {
        fallbackMiningPubKeyBytes = constants.getFallbackMiningPubKey0();
    } else {
        fallbackMiningPubKeyBytes = constants.getFallbackMiningPubKey1();
    }
    ECKey fallbackMiningPubKey = ECKey.fromPublicOnly(fallbackMiningPubKeyBytes);
    List<RLPElement> signatureRLP = (RLPList) RLP.decode2(signatureBytesRLP).get(0);
    if (signatureRLP.size() != 3) {
        return false;
    }
    byte[] v = signatureRLP.get(0).getRLPData();
    byte[] r = signatureRLP.get(1).getRLPData();
    byte[] s = signatureRLP.get(2).getRLPData();
    ECKey.ECDSASignature signature = ECKey.ECDSASignature.fromComponents(r, s, v[0]);
    return fallbackMiningPubKey.verify(header.getHashForMergedMining(), signature);
}

Example 38 with ECKey

use of org.ethereum.crypto.ECKey in project rskj by rsksmart.

the class DefaultConfig method peerExplorer.

@Bean
public PeerExplorer peerExplorer(RskSystemProperties rskConfig) {
    ECKey key = rskConfig.getMyKey();
    Node localNode = new Node(key.getNodeId(), rskConfig.getPublicIp(), rskConfig.getPeerPort());
    NodeDistanceTable distanceTable = new NodeDistanceTable(KademliaOptions.BINS, KademliaOptions.BUCKET_SIZE, localNode);
    long msgTimeOut = rskConfig.peerDiscoveryMessageTimeOut();
    long refreshPeriod = rskConfig.peerDiscoveryRefreshPeriod();
    List<String> initialBootNodes = rskConfig.peerDiscoveryIPList();
    List<Node> activePeers = rskConfig.peerActive();
    if (CollectionUtils.isNotEmpty(activePeers)) {
        for (Node n : activePeers) {
            InetSocketAddress address = n.getAddress();
            initialBootNodes.add(address.getHostName() + ":" + address.getPort());
        }
    }
    return new PeerExplorer(initialBootNodes, localNode, distanceTable, key, msgTimeOut, refreshPeriod);
}

Example 39 with ECKey

use of org.ethereum.crypto.ECKey in project rskj by rsksmart.

the class SystemProperties method getGeneratedNodePrivateKey.

private String getGeneratedNodePrivateKey() {
    try {
        File file = new File(databaseDir(), "nodeId.properties");
        Properties props = new Properties();
        if (file.canRead()) {
            props.load(new FileReader(file));
        } else {
            ECKey key = new ECKey();
            props.setProperty("nodeIdPrivateKey", Hex.toHexString(key.getPrivKeyBytes()));
            props.setProperty("nodeId", Hex.toHexString(key.getNodeId()));
            file.getParentFile().mkdirs();
            props.store(new FileWriter(file), "Generated NodeID. To use your own nodeId please refer to 'peer.privateKey' config option.");
            logger.info("New nodeID generated: " + props.getProperty("nodeId"));
            logger.info("Generated nodeID and its private key stored in " + file);
        }
        return props.getProperty("nodeIdPrivateKey");
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

Example 40 with ECKey

use of org.ethereum.crypto.ECKey in project rskj by rsksmart.

the class Transaction method sign.

public void sign(byte[] privKeyBytes) throws MissingPrivateKeyException {
    byte[] rawHash = this.getRawHash().getBytes();
    ECKey key = ECKey.fromPrivate(privKeyBytes).decompress();
    this.setSignature(key.sign(rawHash));
}