Java版 Filecoin 签名和地址生成

src/main/java/com/blocksignature/signature/UnsignedMessageAPI.java

 package com.blocksignature.signature;
 
-public class UnsignedMessageAPI {
+import java.io.Serializable;
+
+public class UnsignedMessageAPI implements Serializable {
     private String to;
     private String from;
     private long nonce;

src/main/java/com/blocksignature/utils/FilecoinUtil.java

@@ -7,11 +7,11 @@ import org.bitcoinj.core.ECKey;
 import org.bitcoinj.core.Utils;
 
 public class FilecoinUtil {
-    public String generateAddress(ECKey ecKey) {
+    public static String generateAddress(ECKey ecKey) {
         return GenerateAddressUtil.generateAddress(ecKey);
     }
 
-    public String signatureTransaction(UnsignedMessageAPI message, ECKey ecKey) {
+    public static String signatureTransaction(UnsignedMessageAPI message, ECKey ecKey) {
         String hexKey = Utils.HEX.encode(ecKey.getPrivKeyBytes());
         return SignatureTransactionUtil.transaction_serialize(message, hexKey);
     }