From e57082d413f952d98bd766de2398daa831e2363b Mon Sep 17 00:00:00 2001
From: adrianziser <adrian@ziser.it>
Date: Sat, 18 Feb 2017 20:38:23 +0100
Subject: [PATCH] Multisig

* test added
---
 src/test/java/jota/IotaMultisigTest.java | 87 ++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 src/test/java/jota/IotaMultisigTest.java

diff --git a/src/test/java/jota/IotaMultisigTest.java b/src/test/java/jota/IotaMultisigTest.java
new file mode 100644
index 0000000..91bbe0b
--- /dev/null
+++ b/src/test/java/jota/IotaMultisigTest.java
@@ -0,0 +1,87 @@
+package jota;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import jota.error.InvalidAddressException;
+import jota.error.InvalidBundleException;
+import jota.error.InvalidTransferException;
+import jota.model.Bundle;
+import jota.model.Transaction;
+import jota.model.Transfer;
+import jota.pow.JCurl;
+import jota.utils.Converter;
+import jota.utils.Multisig;
+import jota.utils.Signing;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Created by Adrian on 18.02.2017.
+ */
+public class IotaMultisigTest {
+
+    private static final String TEST_SEED1 = "ABCDFG";
+    private static final String TEST_SEED2 = "FDSAG";
+    private static final String REMAINDER_ADDRESS = "NZRALDYNVGJWUVLKDWFKJVNYLWQGCWYCURJIIZRLJIKSAIVZSGEYKTZRDBGJLOA9AWYJQB9IPWRAKUC9FBDRZJZXZG";
+    private static final String RECEIVE_ADDRESS = "ZGHXPZYDKXPEOSQTAQOIXEEI9K9YKFKCWKYYTYAUWXK9QZAVMJXWAIZABOXHHNNBJIEBEUQRTBWGLYMTX";
+
+    private static Gson gson = new GsonBuilder().create();
+    private IotaAPI iotaClient;
+
+    @Before
+    public void createApiClientInstance() {
+        iotaClient = new IotaAPI.Builder().build();
+    }
+
+    @Test
+    public void basicMultiSigTest() throws InvalidBundleException, InvalidTransferException, InvalidAddressException {
+
+        Multisig ms = new Multisig();
+
+        // First co-signer uses security level 3 and index 0 for the private key
+        String digestOne = ms.getDigest(TEST_SEED1, 3, 0);
+
+        // We initiate the multisig address generation by absorbing the key digest
+        String initiatedMultisigDigests = ms.addAddressDigest(digestOne, "");
+
+        // Second cosigner also uses security level 3 and index 0  for the private key
+        String digestTwo = ms.getDigest(TEST_SEED2, 3, 0);
+
+        // Add the multisig by absorbing the second cosigners key digest
+        String finalMultisigDigests = ms.addAddressDigest(digestTwo, initiatedMultisigDigests);
+
+        // finally we generate the multisig address itself
+        String multiSigAddress = ms.finalizeAddress(finalMultisigDigests);
+
+        System.out.println("MultisigAddress = " + multiSigAddress);
+
+        boolean isValidMultisigAddress = ms.validateAddress(multiSigAddress, new int[][]{Converter.trits(digestOne), Converter.trits(digestTwo)});
+
+        System.out.println("Is a valid multisig address " + isValidMultisigAddress);
+
+        assertTrue("Address is not a valid multisigaddress", isValidMultisigAddress);
+        Transfer transfer = new Transfer(RECEIVE_ADDRESS, 999, "", "");
+        List<Transfer> transfers = new ArrayList<>();
+        transfers.add(transfer);
+
+        List<Transaction> trxs = iotaClient.initiateTransfer(6, multiSigAddress, REMAINDER_ADDRESS, transfers, true);
+
+        Bundle bundle = new Bundle(trxs, trxs.size());
+
+        bundle = ms.addSignature(bundle, multiSigAddress, ms.getKey(TEST_SEED1, 0, 3));
+
+        bundle = ms.addSignature(bundle, multiSigAddress, ms.getKey(TEST_SEED2, 0, 3));
+
+
+        Signing sgn = new Signing(new JCurl());
+
+        boolean isValidSignature = sgn.validateSignatures(bundle, multiSigAddress);
+        assertTrue("MultiSignature not valid", isValidSignature);
+        System.out.println("Result of multi-signature validation is " + isValidSignature);
+    }
+}