Access IDs in configuration profiles

I am developing an application for a company that asks its users to identify themselves with a certificate.

Basically the application will create a connection to the server and using the NSURLConnnection delegation methods the application will send the user's credentials. Now I was able to read the credentials from the certificate deployed as a resource in the app bundle and send the credentials to the server. We were also able to complete the OTA registration and I need to know if it is possible to deploy a personal certificate through the OTA registration process and then access that certificate using an app we are developing.

I read the documentation which says that apps only have access to their own keychain items, but I don't know if there is any way to specify the app id in the config profile (similar to how it is done for sharing a keychain between apps ) and then access those certificates. Or perhaps this is another way to accomplish the task of providing personal certificates available through our application.

Thanks in advance