public static SecIdentity GetIdentity(X509Certificate certificate)
{
/*
* If we got an 'X509Certificate2', then we require it to have a private key
* and import it.
*/
var certificate2 = certificate as X509Certificate2;
if (certificate2 != null)
{
return(SecIdentity.Import(certificate2));
}
/*
* Otherwise, we require the private key to be in the keychain.
*/
using (var secCert = new SecCertificate(certificate)) {
return(SecKeyChain.FindIdentity(secCert, true));
}
}
public static SecIdentity GetIdentity(X509Certificate certificate)
{
/*
* If we got an 'X509Certificate2', then we require it to have a private key
* and import it.
*/
var certificate2 = certificate as X509Certificate2;
if (certificate2 != null)
#if MONOTOUCH
{ return(SecIdentity.Import(certificate2)); }
#else
{ return(SecImportExport.ItemImport(certificate2)); }
#endif
/*
* Reading Certificates from the Mac Keychain
* ==========================================
*
* Reading the private key from the keychain is a new feature introduced with
* AppleTls on XamMac and iOS. On Desktop Mono, this new feature has several
* known issues and it also did not received any testing yet. We go back to the old
* way of doing things, which is to explicitly provide an X509Certificate2 with a
* private key.
*
* Keychain Dialog Popups
* ======================
*
* When using Xamarin.Mac or Xamarin.iOS, we try to search the keychain
* for the certificate and private key.
*
* On Xamarin.iOS, this is easy because each app has its own keychain.
*
* On Xamarin.Mac, the .app package needs to be trusted via code-sign
* to get permission to access the user's keychain. [FIXME: I still have to
* research how to actually do that.] Without this, you will get a popup
* message each time, asking you whether you want to allow the app to access
* the keychain, but you can make these go away by selecting "Trust always".
*
* On Desktop Mono, this is problematic because selecting "Trust always"
* give the 'mono' binary (and thus everything you'll ever run with Mono)
* permission to retrieve the private key from the keychain.
*
* This code would also trigger constant keychain popup messages,
* which could only be suppressed by granting full trust. It also makes it
* impossible to run Mono in headless mode.
*
* SecIdentityCreate
* =================
*
* To avoid these problems, we are currently using an undocumented API
* called SecIdentityRef() to avoid using the Mac keychain whenever a
* X509Certificate2 with a private key is used.
*
* On iOS and XamMac, you can still provide the X509Certificate without
* a private key - in this case, a keychain search will be performed (and you
* may get a popup message on XamMac).
*/
#if MOBILE
using (var secCert = new SecCertificate(certificate)) {
return(SecKeyChain.FindIdentity(secCert, true));
}
#else
return(null);
#endif
}