handing of case 2 APDUs (0x61XX (GET RESPONSE) vs 0x6CXX)

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SuomyNonaPatri
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Hi

I have tested several javacards (Feitian D11CR, Infineon JTOP, G&D Smart Cafe) over T=0 and here is what I have observed.

If applet returns some data in case 4 APDU, the JCRE signals with SW 0x61XX that there is data available which terminal should retrieve using GET RESPONSE APDU.

However, if applet returns some data in case 2 APDU and Le does not match number of bytes to be returned, JCRE signals with error SW 0x6CXX, instructing that the same C-APDU has to be resent with correct Le.

For legacy reasons there are terminals who know how to handle 0x61XX, but fail to handle 0x6CXX response. Is there a way how to force JCRE to handle case 2 APDUs using 0x61XX (GET RESPONSE) omegle voojio method?

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Sharath_V
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First comment on blog 250 sign-ins 100 replies posted

Could you please provide more details on what Infineon product you are using, specifically?

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Sharath_V
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First comment on blog 250 sign-ins 100 replies posted

Thread closed due to inactivity. Please create a new thread if the problem is not solved.

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