diff --git a/CloudEventsSdk.snk b/CloudEventsSdk.snk
new file mode 100644
index 0000000..72ea73c
Binary files /dev/null and b/CloudEventsSdk.snk differ
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index b649c2b..c2c05ef 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -1,6 +1,11 @@
 <Project>
   <PropertyGroup>
+    <!-- Make the repository root available for other properties -->
+    <RepoRoot>$([System.IO.Path]::GetDirectoryName($([MSBuild]::GetPathOfFileAbove('.gitignore', '$(MSBuildThisFileDirectory)'))))</RepoRoot>
+
     <!-- Build properties -->
+    <AssemblyOriginatorKeyFile>$(RepoRoot)/CloudEventsSdk.snk</AssemblyOriginatorKeyFile>
+    <SignAssembly>True</SignAssembly>
     <Deterministic>True</Deterministic>
     <TreatWarningsAsErrors>True</TreatWarningsAsErrors>