Page Comparison

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1. Get Data Encryption Enable status (C7-37)
   Note: This command is only supported in Non-SRED version devices, not supported in SRED version devices.

   
   
2. Check DUKPT keys (81-02)
   
   
   
   EXAMPLE: (click the image to enlarge)
   the image below shows the value returned is ffff01ffff01ffffffffffff
   Start counting from left to right the first byte is zerobyte 0. So ffff01ffff01ffffffffffff shows that slot 2 and 5 have keys present. So this reader is injected with a DEK and a an RKI-KEK
   
   
   
3. Get DUKPT Key Serial Number (81-0A) with data 02 (for slot 2), data 03(for slot 3), or data 05 (for slot 5)
   
   
   
   

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