验证：
public static String recoverAddressFromSignature(String signature, String src) throws SignatureException {
byte[] signatureBytes = Numeric.hexStringToByteArray(signature);
byte v = signatureBytes[64];
if (v < 27) {
v += 27;
}
Sign.SignatureData sd = new Sign.SignatureData(
v,
(byte[]) Arrays.copyOfRange(signatureBytes, 0, 32),
(byte[]) Arrays.copyOfRange(signatureBytes, 32, 64));
BigInteger pubkey = Sign.signedMessageToKey(getMessageHash(Numeric.toHexString(src.getBytes()).getBytes()), sd);
String addressRecovered = "0x" + Keys.getAddress(pubkey);
logger.info("--->" + addressRecovered);
String hexAddress = AddressType.User.normalize(addressRecovered);
logger.info("--> " + hexAddress);
return hexAddress;
}
签名信息：
public static byte[] getMessageHash(byte[] message) {
byte[] prefix = ("\u0019Conflux Signed Message:\n".concat(String.valueOf(message.length))).getBytes();
byte[] result = new byte[prefix.length + message.length];
System.arraycopy(prefix, 0, result, 0, prefix.length);
System.arraycopy(message, 0, result, prefix.length, message.length);
return result;
}
导包：
io.github.conflux-chain
conflux.web3j
1.0.5
org.web3j
core
4.5.11
org.bitcoinj
bitcoinj-core
0.15.3
compile