Examples of org.spongycastle.crypto.signers.ECDSASigner.generateSignature()

            throw new MissingPrivateKeyException();
        check(priv != null, "Private key must not be null");
        ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
        ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(priv, CURVE);
        signer.init(true, privKey);
        BigInteger[] components = signer.generateSignature(input);
        return new ECDSASignature(components[0], components[1]).toCanonicalised();
    }
    
    /**
     * Takes the sha3 hash (32 bytes) of data and returns the ECDSA signature

            @Override
            protected ECDSASignature doSign(Sha256Hash input, BigInteger privateKeyForSigning) {
                ECDSASigner signer = new ECDSASigner();
                ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(privateKeyForSigning, CURVE);
                signer.init(true, privKey);
                BigInteger[] components = signer.generateSignature(input.getBytes());
                return new ECDSASignature(components[0], components[1]).toCanonicalised();
            }
        };
        TransactionOutput output = doubleSpentTx.addOutput(Coin.COIN.divide(2), signingKey.toAddress(params));

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.