I use a Thales PayShield 10K with a LMK KeyBlock 3DES. I have to send a CVK Key to a Scheme for the valorization of CVV2 value. Now, in my envorinment i generated a CVK Key with "Key Usage"= C0 and encrypted it under a ZMK (Key scheme "s"). About the problem: the Scheme sent the documentation related to the cvk exchange and mentions "a pair of single keys a+b in hexadecimal format". I know that was the standard for Variant keys, how can i manage this type of Key when i use a Key Block LMK?
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If you want to exchange your key in key block format, export your key under key scheme "R" instead of "S".
jiarong
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Can you explain? – MaXbeMan Jun 05 '23 at 05:18
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Encrypt your CVK under ZMK with key scheme 'X' instead of 'S' – jiarong Jun 05 '23 at 07:56
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ok, i understand it; but, what is the technical reasons? We agreed to exchange keys in KB format. – MaXbeMan Jun 05 '23 at 09:52