Seld: Difference between revisions

Revision as of 02:57, 1 October 2015

This is the "Secure Element Daemon" used to communicate with the secure element hardware on the device. It is interacted with by the nfcd daemon using XPC.

SELD plist:

{
    EnablePressuredExit = 1;
    EnableTransactions = 1;
    ExitTimeOut = 40;
    Label = "com.apple.seld";
    MachServices =     {
        "com.apple.seld" = 1;
        "com.apple.seld.aps" = 1;
    };
    Program = "/usr/libexec/seld";
    RunAtLoad = 1;
    UserName = mobile;
}

ApplePay personalization is performed using EMV BER-TLV commands to the secure element.

Major objects in the seld binary are:

NFSecureElement(CertificateAuthority)
SEDaemon
NFSecureElement(ISO7816)
NFSecureElement
NFSecureElement(ContactlessRegistry)
NFSecureElementCache
NFSecureElementRemoteAdminAgent
NFSecureElementRemoteAdminRequest
NFSecureElementRemoteAdminRegistry
NFResponseAPDU
NFCardManagerAgent
NFCardManagerAgent_XPC

NFCardManagerAgent Supported XPC Commands

ID	Command	Object
0x0 - 0x8	throw "unknown command" error	???
0x11	[NFCardManagerAgent signChallenge:callback:]	raw challenge data
0x12	[NFCardManagerAgent authorize:callback:]	dict{Authtype=??, SSEHandle=??}
0x13	[NFCardManagerAgent deauthorize]	???
0x14	[NFCardManagerAgent getApplications:]	???
0x15	[NFCardManagerAgent asActive:checkCache:callback:]	???
0x16	[NFCardManagerAgent markAllApplicationsForDelete]	???
0x17	[NFCardManagerAgent getActiveApplications:]	???
0x18	[NFCardManagerAgent getRestrictedMode:]	???
0x19-0x89	throw unknown command error	N/A
0x90	call [NFCardManagerAgent dumpAppData:callback:]	???
0x91	call [NFCardManagerAgent dumpRestrictedModeLogWithCallBack:]	???
>0x91	throw unknown command error	N/A

@@ Line 43: / Line 43: @@
 | 0x0 - 0x8 || throw "unknown command" error || ???
 |-
-| 0x11 || [NFCardManagerAgent signChallenge:callback:] || ???
+| 0x11 || [NFCardManagerAgent signChallenge:callback:] || raw challenge data
 |-
-| 0x12 || [NFCardManagerAgent authorize:callback:] || Authtype, SSEHandle
+| 0x12 || [NFCardManagerAgent authorize:callback:] || dict{Authtype=??, SSEHandle=??}
 |-
 | 0x13 || [NFCardManagerAgent deauthorize] || ???