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

Example 76 with ECKey

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

the class SampleEthereumSignatureGenerator method main.

public static void main(String[] args) {
    String signedData = "6b2168da-3dff-4e06-b05c-e39f91bd1eae";
    ECKey usersPrivateKey = new ECKey(bytesToBigInteger(Hex.decode("f092460bdfe1229f3c7c70e80a3722dd526b969056700f908e91d9f8178e1464")), CURVE.getCurve().createPoint(bytesToBigInteger(Hex.decode("0F 7E C4 84 DA 6B 82 B5 3B 75 C1 57 30 BD C4 A2 6D 7E 18 43 65 E0 01 50 46 65 A2 C2 E1 82 B8 72")), bytesToBigInteger(Hex.decode("00 8A 4B F8 48 EA F7 9C 4D 7B 3F 30 7E A6 8D B6 55 75 F5 FD D7 F9 8F 65 CD 76 1A E0 27 61 D9 EC F0"))));
    ECKey.ECDSASignature signature = usersPrivateKey.sign(sha3(signedData.getBytes()));
    byte[] signautureAsDer = convertEthereumSignatureToDer(Base64.decode(signature.toBase64()));
    ECKey publicKey = ECKey.fromPublicOnly(usersPrivateKey.getPubKeyPoint());
    System.out.println("Private key: " + Hex.toHexString(usersPrivateKey.getPrivKeyBytes()));
    System.out.println("Public key (65 bytes): " + Hex.toHexString(publicKey.getPubKey()));
    System.out.println("Address: " + Hex.toHexString(publicKey.getAddress()));
    System.out.println("Signature in DER: " + Hex.toHexString(signautureAsDer));
}