Accessing client certificate from Iphone's Key chain with Monotouch

I built an apps with Monotouch (c#) that required client certificate authentication to connect https server. The client certificate will be distributed pe开发者_C百科r mail, and the apps user should save the client certificate on the Iphone.

Since the certificate will be stored in the Iphone, how can I access the certificate stored in the Iphone with Monotouch? Is there any API for this?

Could someone provide me any link, sample codes, or docs?

Thanks!

---

There is no way to access system installed certificates on the iPhone.

The keyring APIs are merely useful to manage your own certificates that you install in your application.