Common Support Problems and Solutions

EMVFoundry

1) I get: Cannot write to SmartCard and blank combo-box at the top.

I get this:

How to solve:

1) Check if your SmartCard is connected or not.

2) If you don't have a SmartCard device, buy one.

2) EMVFoundry can't read or write due to JavaCardOS Virtual Drivers

If you get this:

See this workflow: How to uninstall unwanted smartcard drivers.

We don't use it here. We use different method of live-debugging and testing SmartCard Applets. This uses Sun Java/ Oracle Java directly and doesn't write to card. It simulates an entire smart-card in memory on computer, so it's way faster.

For end-users: Please uninstall it. It doesn't do anything useful.

4) Does JavaCardOS work with CardReset?

No, JavaCardOS Virtual Contact Reader does not work with CardReset.exe.

You should uninstall JavaCardOS and also remove it's drivers.

5) Why doesn't EMVFoundry encode 9F26 (ARQC)?

It instead encodes 9F79, 9F36, 5A, 5F34, 82, which is used to dynamically generate 9F26.

Read the EMV Specification.

ARQC = MDK + Today's Date + Transaction Amount + Unknown Number (0 to 4.2 billion).

If you key-in the MDK, the ARQC generated will ALWAYS be correct, provided the RIGHT MDK is provided.

Good luck refreshing ARQC every day, and guessing UN (Unknown Number) which is a number between 0 to 4 billion.

Is it 6,123,233? 742,414? 1,878,234,783 ?

Aww. you encoded yesterday's ARQC.

Do you know the final transaction amount + VAT or + Sales Tax, before going to the shops?

6) Can I load X2 ISTs to EMVFoundry?

You can load X2 ISTs to EMVFoundry, but you cannot load ISTs that EMVFoundry makes to X2.

EMVFoundry ISTs cannot be loaded into X2.

That is:

X2 to EMVFoundry - compatible. EMVFoundry reads 0A, 0B commands from X2.

EMVFoundry to X2 - incompatible. EMVFoundry uses 0E commands.X2 doesn't understand 0E commands.

EMVFoundry 2.0.0.5 Release Notes
https://telegra.ph/EMVFoundry-2003-08-15