You can run sn -v "path to your assembly". This will lead to a conclusion xxx is a delay-signed or test-signed assemblyif the assembly is delayed.
.NET, StrongNameSignatureVerificationEx (http://blogs.msdn.com/b/shawnfa/archive/2004/06/07/150378.aspx)
[DllImport("mscoree.dll", CharSet = CharSet.Unicode)]
static extern bool StrongNameSignatureVerificationEx(string wszFilePath, bool fForceVerification, ref bool pfWasVerified);