Checking an assembly for a strong name

Assembly loaded =
    Assembly.LoadFile(path);

byte[] evidenceKey =
    loaded.GetName().GetPublicKey();

if (evidenceKey != null)
{
    byte[] internalKey =
        Assembly.GetExecutingAssembly().GetName().GetPublicKey();

    if (evidenceKey.SequenceEqual(internalKey))
    {
        return extension;
    }
}

[DllImport("mscoree.dll", CharSet=CharSet.Unicode)]
static extern bool StrongNameSignatureVerificationEx(string wszFilePath, bool fForceVerification, ref bool  pfWasVerified);