/// <summary>
/// Obtains identity of the specified native assembly.
/// File must be either a PE with an embedded xml manifest, or a stand-alone xml manifest file.
/// Returns null if identity could not be obtained.
/// </summary>
/// <param name="path">The name of the file from which the identity is to be obtained.</param>
/// <returns>The assembly identity of the specified file.</returns>
public static AssemblyIdentity FromNativeAssembly(string path)
{
if (!FileSystems.Default.FileExists(path))
{
return(null);
}
if (PathUtil.IsPEFile(path))
{
Stream m = EmbeddedManifestReader.Read(path);
if (m == null)
{
return(null);
}
return(FromManifest(m));
}
return(FromManifest(path));
}
private static void SignFileInternal(X509Certificate2 cert, Uri timestampUrl, string path, bool targetFrameworkSupportsSha256, System.Resources.ResourceManager resources)
{
if (cert == null)
{
throw new ArgumentNullException(nameof(cert));
}
if (String.IsNullOrEmpty(path))
{
throw new ArgumentNullException(nameof(path));
}
if (!FileSystems.Default.FileExists(path))
{
throw new FileNotFoundException(String.Format(CultureInfo.InvariantCulture, resources.GetString("SecurityUtil.SignTargetNotFound"), path), path);
}
bool useSha256 = UseSha256Algorithm(cert) && targetFrameworkSupportsSha256;
if (PathUtil.IsPEFile(path))
{
if (IsCertInStore(cert))
{
SignPEFile(cert, timestampUrl, path, resources, useSha256);
}
else
{
throw new InvalidOperationException(resources.GetString("SignFile.CertNotInStore"));
}
}
else
{
using (RSA rsa = CngLightup.GetRSAPrivateKey(cert))
{
if (rsa == null)
{
throw new ApplicationException(resources.GetString("SecurityUtil.OnlyRSACertsAreAllowed"));
}
try
{
var doc = new XmlDocument {
PreserveWhitespace = true
};
var xrSettings = new XmlReaderSettings {
DtdProcessing = DtdProcessing.Ignore
};
using (XmlReader xr = XmlReader.Create(path, xrSettings))
{
doc.Load(xr);
}
var manifest = new SignedCmiManifest2(doc, useSha256);
CmiManifestSigner2 signer;
if (useSha256 && rsa is RSACryptoServiceProvider)
{
RSACryptoServiceProvider csp = SignedCmiManifest2.GetFixedRSACryptoServiceProvider(rsa as RSACryptoServiceProvider, useSha256);
signer = new CmiManifestSigner2(csp, cert, useSha256);
}
else
{
signer = new CmiManifestSigner2(rsa, cert, useSha256);
}
if (timestampUrl == null)
{
manifest.Sign(signer);
}
else
{
manifest.Sign(signer, timestampUrl.ToString());
}
doc.Save(path);
}
catch (Exception ex)
{
int exceptionHR = Marshal.GetHRForException(ex);
if (exceptionHR == -2147012889 || exceptionHR == -2147012867)
{
throw new ApplicationException(resources.GetString("SecurityUtil.TimestampUrlNotFound"), ex);
}
throw new ApplicationException(ex.Message, ex);
}
}
}
}