JavaCard OS

Hello, it's me again.

Can somebody here explain the mechanism of secure channel initiation on mode implicit? I already have a look at the specification, the introduction about GlobalPlatform initiation mode implicit is very simple.

So hope expert guide me how to do it.

Any help is appreciated.

SCP 02 ? SCP 03 ? Which type ?

The steps are much the same as the explicit, except there is not INIT-UPDATE/EXT-AUTH commands to deal with. When the first secured APDU is received (CLA = 0x84), you follow the process to generate session keys and verify the MAC. The card spec outlines how to generate a MAC with the session keys.

Crawford wrote:The steps are much the same as the explicit, except there is not INIT-UPDATE/EXT-AUTH commands to deal with. When the first secured APDU is received (CLA = 0x84), you follow the process to generate session keys and verify the MAC. The card spec outlines how to generate a MAC with the session keys.

Thanks very much for your time and answer.

I am glad to be of assistance.