CODEWITHSUNDEEP
c#smartcardjavacardsmartcard-readerglobalplatform
Ihdina
Ihdina

Reputation: 1760

Command data field of Send LOAD

I want to install applets on Java Card with C# program. I've successfully steps 1-4.

I'm having trouble at step 5. Send LOAD (80 E8 00 00 XX..), What is Command data field (C482099B010023DEC..) of LOAD come from?

I tried read the .cap file as parameters but failed. Thanks.

To install the applet in Java Card:
1. Open the reader.
2. Send SELECT to select ISD（AID）
3. Initiate the Secure Channel (INITIALIZE UPDATE and EXTERNAL AUTHENTICATE).
4. Send INSTALL[for Load] (80 E6 02 00 XX..).
5. Send LOAD (80 E8 00 00 XX..).
6. Send INSTALL[for Install] (80 E6 0C 00 XX..).

//

<<80 E8 00 00 FF C4 82 09 9B 01 00 23 DE CA FF ED 02 02 04 00 01 07 4C 6F 79 61 6C 74 79 11 4C 6F 79 61 6C 74 79 43 61 72 64 41 70 70 6C 65 74 02 00 21 00 23 00 21 00 0F 00 1F 00 EA 00 0E 07 1B 00 3E 00 BD 00 00 02 19 10 AF 00 0C 00 06 00 22 03 01 00 04 00 1F 03 02 01 07 A0 00 00 00 62 01 01 02 01 07 A0 00 00 00 62 01 02 02 01 07 A0 00 00 00 62 02 01 03 00 0F 01 0B 4C 6F 79 61 6C 74 79 43 61 72 64 00 55 06 00 0E 00 00 00 80 03 0A 00 06 07 01 00 00 00 63 07 07 1B 00 05 40 18 8C 00 0C 18 03 89 00 18 03 89 01 18 06 11 00 80 03 8D 00 0E 94 00 00 10 87 02 18 05 03 8D 00 0D 87 03 18 05 8D 00 0F 87 04 18 8F 00 0A 3D 06 10 08 8C 00 0B 87 05 18 10 08 90 0B 87 06 18 10 10 90 0B 87 07 18 03 88 08 18 03 88 09 18 8B 00 11 7A 05 30 8F 00 12 3D 18 1D 1E 8C 00 13 3B 7A 02 21 18 8B 00 14 00
>>00 90 00


5. LOAD
------------------------------------------------------------
CLA                 80  GlobalPlatform command
                        No secure messaging
                        Logical channel 0
INS                 E8  LOAD
P1                  00  More blocks
P2                  00  Block number
Lc field            FF  length of data field
Command data field  C482099B010023DECAFFED0202040001074C6F79616C7479114C6F79616C7479436172644170706C657402002100230021000F001F00EA000E071B003E00BD0000021910AF000C0006002203010004001F03020107A0000000620101020107A0000000620102020107A000000062020103000F010B4C6F79616C747943617264005506000E00000080030A000607010000006307071B000540188C000C18038900180389011806110080038D000E9400001087021805038D000D870318058D000F8704188F000A3D0610088C000B8705181008900B8706181010900B87071803880818038809188B00117A05308F0012ECAFFED0202040001074C6F79616C7479114C6F79616C7479436172644170706C657402002100230021000F001F00EA000E071B003E00BD0000021910AF000C0006002203010004001F03020107A0000000620101020107A0000000620102020107A000000062020103000F010B4C6F79616C747943617264005506000E00000080030A000607010000006307071B000540188C000C18038900180389011806110080038D000E9400001087021805038D000D870318058D000F8704188F000A3D0610088C000B8705181008900B8706181010900B87071803880818038809188B00117A05308F00123D181D1E8C00133B7A0221188B0014
Le field            00
------------------------------------------------------------

Upvotes: 0

Views: 82

Answers (1)

k_o_
k_o_

Reputation: 6298

You have to add there the extracted CAP file content in a specific order.

This logic is used to trigger the loading process. The tag C4 is important + the length which is then handled in this function.

The load file is extracted to a buffer with this logic, basically the CAP, which is zip file, is extracted and all components according to the Java Card Specification are concatenated which is done here.

It can be more complex if a load file signature is used or the load file should be encrypted but this is rarely used.

Upvotes: 1

Related Questions