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For NEO

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1 products:

1. Check Data Encryption status with Get Data Encryption Enable status (C7-37).

   Note
   Note: This command is only supported in Non-SRED version devices

   , not supported in

   ; SRED version devices DO NOT support it.

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

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2 Products:

1. Get the firmware version command with the Get Version: Protocol 2 (29-00) command.
2. Send the Get data encryption Enable flag command Data Encryption Enable Flag (C7-37) command (see above under NEO I 1 products for Non-SRED version devices).
3. Send the Retrieve key Key Info command (81-0C) command.
   

   This command is used to retrieve retrieves basic key information. Each pair of three bytes represents one key’s parameters (index and slot).

   For example, 0x02 0x00 0x00 0x02 0x00 0x01 will represent [KeyIndex=0x02,KeySlot=0x0000] and [KeyIndex=0x02,KeySlot=0x0001].

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4. Send the Retrieve Detailed Key Info (81-0D)This command will to retrieve the Key Block Header of the specific key index /or slot provided in the Command Framecommand frame. The key Key Block Header contains information such as the type of encryption (TDES/AES), Key Variant, etcand so on.

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