Example #1
0
        private void DoTest(DSA dsa)
        {
            Console.WriteLine("seed");
            Console.WriteLine(BitConverter.ToString(seed));
            Console.WriteLine("counter={0} h={1}", dsa.Counter, dsa.H);

            Console.WriteLine(dsa);

            Assert.AreEqual(105, dsa.Counter);
            Assert.AreEqual(2, dsa.H.ToInt32());

            using (BigNumber q = BigNumber.FromArray(this.out_q)) {
                Assert.IsTrue(q == dsa.Q);
            }

            using (BigNumber p = BigNumber.FromArray(this.out_p)) {
                Assert.IsTrue(p == dsa.P);
            }

            using (BigNumber g = BigNumber.FromArray(this.out_g)) {
                Assert.IsTrue(g == dsa.G);
            }

            byte[] msg = Encoding.ASCII.GetBytes(str1);

            dsa.ConstantTime = true;
            dsa.GenerateKeys();

            byte[] sig = dsa.Sign(msg);
            Assert.IsTrue(dsa.Verify(msg, sig));

            dsa.ConstantTime = false;
            dsa.GenerateKeys();
            sig = dsa.Sign(msg);
            Assert.IsTrue(dsa.Verify(msg, sig));
        }
Example #2
0
        private void DoTest(DSA dsa)
        {
            Console.WriteLine("seed");
            Console.WriteLine(BitConverter.ToString(seed));
            Console.WriteLine("counter={0} h={1}", dsa.Counter, dsa.H);

            Console.WriteLine(dsa);

            if (dsa.Counter != 105)
            {
                throw new Exception("counter should be 105");
            }

            if (dsa.H != 2)
            {
                throw new Exception("h should be 2");
            }

            using (BigNumber q = BigNumber.FromArray(this.out_q))
            {
                if (dsa.Q != q)
                {
                    throw new Exception("q value is wrong");
                }
            }

            using (BigNumber p = BigNumber.FromArray(this.out_p))
            {
                if (dsa.P != p)
                {
                    throw new Exception("p value is wrong");
                }
            }

            using (BigNumber g = BigNumber.FromArray(this.out_g))
            {
                if (dsa.G != g)
                {
                    throw new Exception("g value is wrong");
                }
            }

            byte[] msg = Encoding.ASCII.GetBytes(str1);

            dsa.ConstantTime = true;
            dsa.GenerateKeys();

            byte[] sig = dsa.Sign(msg);
            if (!dsa.Verify(msg, sig))
            {
                throw new Exception("DSA signature failed to verify");
            }

            dsa.ConstantTime = false;
            dsa.GenerateKeys();
            sig = dsa.Sign(msg);
            if (!dsa.Verify(msg, sig))
            {
                throw new Exception("DSA signature failed to verify");
            }
        }