Who shall create a specific Security Domain compliant to GP 2.1?

Question

Particularly, in case of the delegated management, the GP card specification 2.1.1 decribes as follows:
"Security Domains authorized by the Card Issuer to perform Card Content changes shall request the OPEN to load, install, extradite, and delete applications."
I think that the Security Domain is implemented by the Application Provider using GP API. The OPEN is ,however, the component of the Card Manager which should be implemented by a GP compliant JCVM provider or a GP component provider.
My questions are:
1. How does a Security Domain request the OPEN to load, install.. ? How do they interface with each other? Does the GP compliant JCVM provider have to provide the specific interfaces used to change Card Contents for the Application Providers who implement their own Security Domain?
2. If the GP compliant JCVM provider is also responsible for implementing a specific Security Domain, what is the role of the Application Provider? only as a provider of his own security policy for the GP compliant JCVM provider? Can't a Application Provider implement his own Security Domain himself (using only GP2.1 public API)?
I am grateful to you for a kind assistance.

Answer 1

I think that the Security Domain is implemented by theApplication Provider using GP API. The OPEN is
,however, the component of the Card Manager which
should be implemented by a GP compliant JCVM provider
or a GP component provider. Typically and due to the fact that the GP specification is missing the API that would allow a Security Domain to be loaded on the card, Security Domains are developed by the card vendor and present on the card at production. The vendor can decide which features are implemented in the Security Domain e.g. Secure Channel services, DAP Verification, Delegated Management. If, as an Application Provider, you wish to develop your own Security Domain, your vendor may be willing to provide you with details of their proprietary API but this would be specific to this vendors product.
>
My questions are:
1. How does a Security Domain request the OPEN to
load, install.. ? How do they interface with each
other? Does the GP compliant JCVM provider have to
provide the specific interfaces used to change Card
Contents for the Application Providers who implement
their own Security Domain?Yes.
>
2. If the GP compliant JCVM provider is also
responsible for implementing a specific Security
Domain, what is the role of the Application Provider?
only as a provider of his own security policy for the
GP compliant JCVM provider? Can't a Application
Provider implement his own Security Domain himself
(using only GP2.1 public API)?No.
>
I am grateful to you for a kind assistance.