Hello, With iOS13 SDK, CryptoTokenKit is now a Mac and iPhone technology. We can communicate with a smard card thanks to TKSmartCard. I would like to know if we absolutly need a smart card reader for iPhone or if the built-in SIM card reader can communicate with the SIM which is a smart Card?I tried to use the TKSmartCardSlotManager on iOS13 but I have an error message: SmartCard[3354:688268] [smartcard] ctk: connecting to slot registration server (<NSXPCConnection: 0x283c40bd0> connection to service on pid 0 named com.apple.ctkd.slot-client) failed, error Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.ctkd.slot-client was invalidated." UserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.ctkd.slot-client was invalidated.}