How to use

computeAddress

method

in

io.yggdrash.common.crypto.ECKey

/**
 * Gets the address form of the public key.
 *
 * @return 20-byte address
 */
public byte[] getAddress() {
  if (pubKeyHash == null) {
    pubKeyHash = computeAddress(this.pub);
  }
  return pubKeyHash;
}

/**
 * Compute an address from a public point.
 *
 * @param pubPoint a public point
 * @return 20-byte address
 */
public static byte[] computeAddress(ECPoint pubPoint) {
  return computeAddress(pubPoint.getEncoded(/* uncompressed */ false));
}

/**
 * Compute the address of the key that signed the given signature.
 *
 * @param messageHash     32-byte hash of message
 * @param signatureBase64 Base-64 encoded signature
 * @return 20-byte address
 */
public static byte[] signatureToAddress(byte[] messageHash, String signatureBase64) throws SignatureException {
  return computeAddress(signatureToKeyBytes(messageHash, signatureBase64));
}

/**
 * Compute the address of the key that signed the given signature.
 *
 * @param messageHash 32-byte hash of message
 * @param sig         -
 * @return 20-byte address
 */
public static byte[] signatureToAddress(byte[] messageHash, ECDSASignature sig) throws SignatureException {
  return computeAddress(signatureToKeyBytes(messageHash, sig));
}

/**
 * @param recId       Which possible key to recover.
 * @param sig         the R and S components of the signature, wrapped.
 * @param messageHash Hash of the data that was signed.
 * @return 20-byte address
 */
@Nullable
public static byte[] recoverAddressFromSignature(int recId, ECDSASignature sig, byte[] messageHash) {
  final byte[] pubBytes = recoverPubBytesFromSignature(recId, sig, messageHash);
  if (pubBytes == null) {
    return null;
  } else {
    return computeAddress(pubBytes);
  }
}