add sample of C# binding

1 files changed, 73 insertions, 0 deletions

diff --git a/ffi/cs/bls256_test.cs b/ffi/cs/bls256_test.cs
index 5c358fe..aff7a44 100644
--- a/ffi/cs/bls256_test.cs
+++ b/ffi/cs/bls256_test.cs
@@ -39,12 +39,85 @@ namespace mcl {
 				Console.WriteLine("sec.Init={0}", sec);
 			}
 		}
+		static void TestPublicKey()
+		{
+			Console.WriteLine("TestPublicKey");
+			SecretKey sec = new SecretKey();
+			sec.Init();
+			PublicKey pub = sec.GetPublicKey();
+			String s = pub.ToString();
+			Console.WriteLine("pub={0}", s);
+			PublicKey pub2 = new PublicKey();
+			pub2.SetStr(s);
+			assert("pub.SetStr", pub.IsSame(pub2));
+		}
+		static void TestSign()
+		{
+			Console.WriteLine("TestSign");
+			SecretKey sec = new SecretKey();
+			sec.Init();
+			PublicKey pub = sec.GetPublicKey();
+			String m = "abc";
+			Sign s = sec.Sign(m);
+			assert("verify", s.Verify(pub, m));
+			assert("not verify", !s.Verify(pub, m + "a"));
+		}
+		static void TestSharing()
+		{
+			Console.WriteLine("TestSharing");
+			int k = 5;
+			SecretKey[] msk = new SecretKey[k];
+			PublicKey[] mpk = new PublicKey[k];
+			// make master secretkey
+			for (int i = 0; i < k; i++) {
+				msk[i].Init();
+				mpk[i] = msk[i].GetPublicKey();
+			}
+			int n = 30;
+			Id[] ids = new Id[n];
+			SecretKey[] secs = new SecretKey[n];
+			PublicKey[] pubs = new PublicKey[n];
+			for (int i = 0; i < n; i++) {
+				ids[i].SetInt(i * i + 123);
+				secs[i] = ShareSecretKey(msk, ids[i]);
+				pubs[i] = SharePublicKey(mpk, ids[i]);
+				assert("share publicKey", secs[i].GetPublicKey().IsSame(pubs[i]));
+			}
+			string m = "doremi";
+			for (int i = 0; i < n; i++) {
+				Sign sign = secs[i].Sign(m);
+				assert("sign.Verify", sign.Verify(pubs[i], m));
+			}
+			{
+				int[] idxTbl = { 0, 2, 5, 8, 10 };
+				assert("idxTbl.Length=k", idxTbl.Length == k);
+				Id[] subIds = new Id[k];
+				SecretKey[] subSecs = new SecretKey[k];
+				PublicKey[] subPubs = new PublicKey[k];
+				Sign[] subSigns = new Sign[k];
+				for (int i = 0; i < k; i++) {
+					int idx = idxTbl[i];
+					subIds[i] = ids[idx];
+					subSecs[i] = secs[idx];
+					subPubs[i] = pubs[idx];
+					subSigns[i] = secs[idx].Sign(m);
+				}
+				SecretKey sec = RecoverSecretKey(subSecs, subIds);
+				PublicKey pub = RecoverPublicKey(subPubs, subIds);
+				assert("check pub", pub.IsSame(sec.GetPublicKey()));
+				Sign sign = RecoverSign(subSigns, subIds);
+				assert("sign.verify", sign.Verify(pub, m));
+			}
+		}
 		static void Main(string[] args)
 		{
 			try {
 				Init();
 				TestId();
 				TestSecretKey();
+				TestPublicKey();
+				TestSign();
+				TestSharing();
 				if (err == 0) {
 					Console.WriteLine("all tests succeed");
 				} else {