From 7822a6010084df413bb1ae72bd5c7e17c77ee878 Mon Sep 17 00:00:00 2001
From: Thorsten Sommer <service@sommer-engineering.com>
Date: Mon, 6 Jan 2020 20:54:09 +0100
Subject: [PATCH] Added bechmarks

---
 Ed25519 Tests/SignerTests.cs | 67 ++++++++++++++++++++++++++++++++++--
 1 file changed, 64 insertions(+), 3 deletions(-)

diff --git a/Ed25519 Tests/SignerTests.cs b/Ed25519 Tests/SignerTests.cs
index bc0611a..44829a1 100644
--- a/Ed25519 Tests/SignerTests.cs	
+++ b/Ed25519 Tests/SignerTests.cs	
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Security.Cryptography;
 using System.Text;
@@ -182,7 +183,7 @@ namespace Ed25519_Tests
         [Test]
         public void TestPublicKeyFromRandomData()
         {
-            var privateKey = new byte[] { 0x00, 0xac, 0x48 }.AsSpan();
+            var privateKey = new byte[] {0x00, 0xac, 0x48}.AsSpan();
             var publicKey = privateKey.ExtractPublicKey();
 
             Assert.That(privateKey.Length, Is.EqualTo(3));
@@ -200,7 +201,7 @@ namespace Ed25519_Tests
             {
                 var privateKey = Signer.GeneratePrivateKey();
                 var publicKey = privateKey.ExtractPublicKey();
-                
+
                 privateKey.WriteKey(tempFilePrivate);
                 publicKey.WriteKey(tempFilePublic);
 
@@ -248,6 +249,66 @@ namespace Ed25519_Tests
             Assert.That(signaturePrivateKeyEncrypted.ToArray(), Is.Not.EqualTo(signaturePrivateKeyDecrypted.ToArray()));
         }
 
+        [Test]
+        public void TestPerformanceSigning()
+        {
+            var privateKey = Signer.GeneratePrivateKey();
+            var publicKey = privateKey.ExtractPublicKey();
+            var rng = new Random();
+            var payload = new byte[1_024];
+            var stopwatch = new Stopwatch();
+            var desiredRuntime = TimeSpan.FromSeconds(30);
+            var counter = 0;
+
+            while (true)
+            {
+                counter++;
+                rng.NextBytes(payload);
+                
+                stopwatch.Start();
+                Signer.Sign(payload, privateKey, publicKey);
+                stopwatch.Stop();
+
+                if(stopwatch.Elapsed >= desiredRuntime)
+                    break;
+            }
+
+            var result = counter / stopwatch.Elapsed.TotalSeconds;
+            TestContext.Write($"Benchmark for signing messages: {result:0.00} messages/second");
+            Assert.That(true);
+        }
+
+        [Test]
+        public void TestPerformanceValidation()
+        {
+            var privateKey = Signer.GeneratePrivateKey();
+            var publicKey = privateKey.ExtractPublicKey();
+            var rng = new Random();
+            var payload = new byte[1_024];
+            var stopwatch = new Stopwatch();
+            var desiredRuntime = TimeSpan.FromSeconds(30);
+            var counter = 0;
+
+            while (true)
+            {
+                counter++;
+                rng.NextBytes(payload);
+
+                var signature = Signer.Sign(payload, privateKey, publicKey);
+                
+                stopwatch.Start();
+                Signer.Validate(signature, payload, publicKey);
+                stopwatch.Stop();
+
+                if (stopwatch.Elapsed >= desiredRuntime)
+                    break;
+            }
+
+            var result = counter / stopwatch.Elapsed.TotalSeconds;
+            TestContext.Write($"Benchmark for validation of messages: {result:0.00} messages/second");
+            Assert.That(true);
+        }
+
         // See https://tools.ietf.org/html/rfc8032#section-7.1
         [Test]
         public void TestRFC8032Test01EmptyMessage()
@@ -258,7 +319,7 @@ namespace Ed25519_Tests
                 0xd7, 0x5a, 0x98, 0x01, 0x82, 0xb1, 0x0a, 0xb7, 0xd5, 0x4b, 0xfe, 0xd3, 0xc9, 0x64, 0x07, 0x3a,
                 0x0e, 0xe1, 0x72, 0xf3, 0xda, 0xa6, 0x23, 0x25, 0xaf, 0x02, 0x1a, 0x68, 0xf7, 0x07, 0x51, 0x1a,
             };
-            
+
             var privateKey = new byte[]
             {
                 0x9d, 0x61, 0xb1, 0x9d, 0xef, 0xfd, 0x5a, 0x60, 0xba, 0x84, 0x4a, 0xf4, 0x92, 0xec, 0x2c, 0xc4,