Fix signing problem

Author: dotMorten

src/Directory.Build.targets

@@ -51,7 +51,7 @@
       <FilesToSign Include="@(IntermediateSatelliteAssembliesWithTargetPath)" />
       <FilesToSignFiltered Include="@(FilesToSign)" Condition="Exists(%(FilesToSign.Identity))" />
     </ItemGroup>
-    <Exec Condition="'@(FilesToSignFiltered->Count())' > 0" Command="&quot;$(SignToolPath)&quot; sign /v /fd SHA1 /f &quot;$(CertificatePath)&quot; /p &quot;$(CertificatePassword)&quot; /tr http://timestamp.digicert.com /td SHA1 &quot;%(FilesToSignFiltered.Identity)&quot;"
+    <Exec Condition="'@(FilesToSignFiltered->Count())' > 0" Command="&quot;$(SignToolPath)&quot; sign /v /fd SHA1 /f &quot;$(CertificatePath)&quot; /p &quot;$(CertificatePassword)&quot; /tr http://timestamp.digicert.com /td SHA256 &quot;%(FilesToSignFiltered.Identity)&quot;"
           WorkingDirectory="$(ProjectDir)" EchoOff="true" />
     <Exec Condition="'@(FilesToSignFiltered->Count())' > 0" Command="&quot;$(SignToolPath)&quot; sign /v /as /d &quot;Authorization Summary&quot; /fd SHA256 /f &quot;$(CertificatePath)&quot; /p &quot;$(CertificatePassword)&quot; /tr http://timestamp.digicert.com /td SHA256 &quot;%(FilesToSignFiltered.Identity)&quot;"
           WorkingDirectory="$(ProjectDir)" EchoOff="true" />