Examples with SchnorrSignature com.sparrowwallet.drongo.crypto.SchnorrSignature used on opensource projects

Example 1 with SchnorrSignature

use of com.sparrowwallet.drongo.crypto.SchnorrSignature in project drongo by sparrowwallet.

the class PSBTInput method sign.

public boolean sign(ECKey privKey) {
    SigHash localSigHash = getSigHash();
    if (localSigHash == null) {
        localSigHash = getDefaultSigHash();
    }
    if (getNonWitnessUtxo() != null || getWitnessUtxo() != null) {
        Script signingScript = getSigningScript();
        if (signingScript != null) {
            Sha256Hash hash = getHashForSignature(signingScript, localSigHash);
            if (isTaproot()) {
                SchnorrSignature schnorrSignature = privKey.signSchnorr(hash);
                tapKeyPathSignature = new TransactionSignature(schnorrSignature, localSigHash);
                return true;
            } else {
                ECDSASignature ecdsaSignature = privKey.signEcdsa(hash);
                TransactionSignature transactionSignature = new TransactionSignature(ecdsaSignature, localSigHash);
                ECKey pubKey = ECKey.fromPublicOnly(privKey);
                getPartialSignatures().put(pubKey, transactionSignature);
                return true;
            }
        }
    }
    return false;
}

Example 2 with SchnorrSignature

use of com.sparrowwallet.drongo.crypto.SchnorrSignature in project drongo by sparrowwallet.

the class TransactionTest method signTaprootKeypath.

@Test
public void signTaprootKeypath() {
    Transaction tx = new Transaction(Utils.hexToBytes("02000000000101786ed355f998b98f8ef8ef2acf461577325cf170a9133d48a17aba957eb97ff00000000000ffffffff0100e1f50500000000220020693a94699e6e41ab302fd623a9bf5a5b2d6606cbfb35c550d1cb4300451356a102473044022004cc317c20eb9e372cb0e640f51eb2b8311616125321b11dbaa5671db5a3ca2a02207ae3d2771b565be98ae56e21045b9629c94b6ca8f4e3932260e54d4f0e2016b30121032da1692a41a61ad14f3795b31d33431abf8d6ee161b997d004c26a37bc20083500000000"));
    Transaction spendingTx = new Transaction(Utils.hexToBytes("01000000011af4dca4a6bc6da092edca5390355891da9bbe76d2be1c04d067ec9c3a3d22b10000000000000000000180f0fa0200000000160014a3bcb5f272025cc66dc42e7518a5846bd60a9c9600000000"));
    Sha256Hash hash = spendingTx.hashForTaprootSignature(tx.getOutputs(), 0, false, null, SigHash.ALL_TAPROOT, null);
    ECKey privateKey = ECKey.fromPrivate(Utils.hexToBytes("d9bc817b92916a24b87d25dc48ef466b4fcd6c89cf90afbc17cba40eb8b91330"));
    SchnorrSignature sig = privateKey.signSchnorr(hash);
    Assert.assertEquals("7b04f59bc8f5c2c33c9b8acbf94743de74cc25a6052b52ff61a516f7c5ca19cc68345ba99b354f22bfaf5c04de395b9223f3bf0a5c351fc1cc68c224f4e5b202", Utils.bytesToHex(sig.encode()));
    ECKey pubKey = ECKey.fromPublicOnly(privateKey);
    Assert.assertTrue(pubKey.verify(hash, new TransactionSignature(sig, SigHash.ALL_TAPROOT)));
}

Example 3 with SchnorrSignature

use of com.sparrowwallet.drongo.crypto.SchnorrSignature in project drongo by sparrowwallet.

the class TransactionTest method signBip340.

@Test
public void signBip340() {
    ECKey privKey = ECKey.fromPrivate(Utils.hexToBytes("0000000000000000000000000000000000000000000000000000000000000003"));
    Assert.assertEquals("F9308A019258C31049344F85F89D5229B531C845836F99B08601F113BCE036F9", Utils.bytesToHex(privKey.getPubKeyXCoord()).toUpperCase());
    SchnorrSignature sig = privKey.signSchnorr(Sha256Hash.ZERO_HASH);
    Assert.assertEquals("E907831F80848D1069A5371B402410364BDF1C5F8307B0084C55F1CE2DCA821525F66A4A85EA8B71E482A74F382D2CE5EBEEE8FDB2172F477DF4900D310536C0", Utils.bytesToHex(sig.encode()).toUpperCase());
}