Examples with RLPElement org.ethereum.util.RLPElement used on opensource projects

Example 16 with RLPElement

use of org.ethereum.util.RLPElement in project rskj by rsksmart.

the class Block method parseTxs.

private List<Transaction> parseTxs(RLPList txTransactions) {
    List<Transaction> parsedTxs = new ArrayList<>();
    for (int i = 0; i < txTransactions.size(); i++) {
        RLPElement transactionRaw = txTransactions.get(i);
        Transaction tx = new ImmutableTransaction(transactionRaw.getRLPData());
        if (isRemascTransaction(tx, i, txTransactions.size())) {
            // It is the remasc transaction
            tx = new RemascTransaction(transactionRaw.getRLPData());
        }
        parsedTxs.add(tx);
    }
    return Collections.unmodifiableList(parsedTxs);
}

Example 17 with RLPElement

use of org.ethereum.util.RLPElement in project rskj by rsksmart.

the class BlockGenerator method removeLastElement.

private static byte[] removeLastElement(byte[] rlpEncoded) {
    ArrayList<RLPElement> params = RLP.decode2(rlpEncoded);
    RLPList block = (RLPList) params.get(0);
    RLPList header = (RLPList) block.get(0);
    if (header.size() < 20) {
        return rlpEncoded;
    }
    // remove last element
    header.remove(header.size() - 1);
    // remove second last element
    header.remove(header.size() - 1);
    List<byte[]> newHeader = new ArrayList<>();
    for (int i = 0; i < header.size(); i++) {
        byte[] e = nullReplace(header.get(i).getRLPData());
        if (// fix bad feePaid
        (e.length > 32) && (i == 15))
            e = new byte[32];
        newHeader.add(RLP.encodeElement(e));
    }
    byte[][] newHeaderElements = newHeader.toArray(new byte[newHeader.size()][]);
    byte[] newEncodedHeader = RLP.encodeList(newHeaderElements);
    return RLP.encodeList(newEncodedHeader, // very weird.
    nullReplace(block.get(1).getRLPData()), nullReplace(block.get(2).getRLPData()));
}

Example 18 with RLPElement

use of org.ethereum.util.RLPElement in project rskj by rsksmart.

the class FreeBlock method parseTxs.

private static List<Transaction> parseTxs(RLPList txTransactions) {
    List<Transaction> parsedTxs = new ArrayList<>();
    for (int i = 0; i < txTransactions.size(); i++) {
        RLPElement transactionRaw = txTransactions.get(i);
        Transaction tx = new ImmutableTransaction(transactionRaw.getRLPData());
        parsedTxs.add(tx);
    }
    return Collections.unmodifiableList(parsedTxs);
}

Example 19 with RLPElement

use of org.ethereum.util.RLPElement in project rskj by rsksmart.

the class FreeBlock method parseRLP.

private void parseRLP() {
    ArrayList<RLPElement> params = RLP.decode2(rlpEncoded);
    RLPList block = (RLPList) params.get(0);
    // Parse Header
    RLPList header = (RLPList) block.get(0);
    this.header = new FreeBlockHeader(header);
    // Parse Transactions
    RLPList txTransactions = (RLPList) block.get(1);
    this.transactionsList = parseTxs(txTransactions);
    byte[] calculatedRoot = getTxTrie(this.transactionsList).getHash().getBytes();
    // Parse Uncles
    RLPList uncleBlocks = (RLPList) block.get(2);
    for (RLPElement rawUncle : uncleBlocks) {
        RLPList uncleHeader = (RLPList) rawUncle;
        FreeBlockHeader blockData = new FreeBlockHeader(uncleHeader);
        this.uncleList.add(blockData);
    }
    this.parsed = true;
}

Example 20 with RLPElement

use of org.ethereum.util.RLPElement 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);
}