added support for .net code

.gitignore

@@ -5,3 +5,4 @@ obj
 packages
 .tools
 private.snk
+.idea

Crc32.NET.Core.sln

@@ -0,0 +1,5 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+	Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Crc32.NET.Core", "Crc32.NET\Crc32.NET.Core.xproj", "{4889B52E-03E0-4632-9655-B209FBCD6EBA}"
+	EndProject

Crc32.NET.nuspec

@@ -8,14 +8,23 @@
     <owners>force</owners>
     <licenseUrl>https://github.com/force-net/Crc32.NET/blob/develop/LICENSE</licenseUrl>
     <projectUrl>https://github.com/force-net/Crc32.NET</projectUrl>
-    <!--iconUrl>http://ICON_URL_HERE_OR_DELETE_THIS_LINE</iconUrl-->
+    <iconUrl>http://files.force-net.com/crc32-nuget-ico.png</iconUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>Fast version of Crc32 algorithm for .NET. It is up to 3x-5x times better than other "fast" implemenations. Code based on Crc32C.NET library.</description>
     <releaseNotes>
-Small technical update. 
+Small technical update. Added support for .NET Core
     </releaseNotes>
     <copyright>Copyright by Force 2016</copyright>
     <tags>crc32 crc-32 crc .NET</tags>
+    <dependencies>
+      <group targetFramework=".NETStandard1.6">
+        <dependency id="NETStandard.Library" version="[1.6.0, )" />
+      </group>
+    </dependencies>
   </metadata>
-  <files><file src="Crc32.NET\bin\Build\Crc32.NET.*" target="lib\net20" /></files>
+  <files>
+	<file src="Crc32.NET\bin\Build\Crc32.NET.*" target="lib\net20" />
+	<file src="Crc32.NET\bin\BuildCore\Crc32.NET.dll" target="lib\netstandard1.6" />
+	<file src="Crc32.NET\bin\BuildCore\Crc32.NET.xml" target="lib\netstandard1.6" />
+  </files>
 </package>

Crc32.NET/Crc32.NET.Core.xproj

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+
+  <Import Project="$(VSToolsPath)\DotNet\Microsoft.DotNet.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>4889B52E-03E0-4632-9655-B209FBCD6EBA</ProjectGuid>
+    <RootNamespace>DotNetCoreClassLibrary</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">bin\$(MSBuildProjectName)\</OutputPath>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DotNet\Microsoft.DotNet.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>

Crc32.NET/Crc32Algorithm.cs

@@ -16,7 +16,9 @@ public class Crc32Algorithm : HashAlgorithm
         /// </summary>
         public Crc32Algorithm()
         {
+#if !NETCORE
             HashSizeValue = 32;
+#endif
         }
 
         /// <summary>

Crc32.NET/project.json

@@ -0,0 +1,20 @@
+{
+  "version": "1.0.1-*",
+
+  "dependencies": {
+    "NETStandard.Library": "1.6.0"
+  },
+
+  "frameworks": {
+    "netstandard1.6": {
+      "imports": "dnxcore50"
+    }
+  },
+  "buildOptions": {
+  	"xmlDoc": true,
+  	"keyFile": "../public.snk",
+  	"delaySign": true,
+    "define": ["NETCORE"],
+    "optimize": true
+  }
+}