A 32-digit hexadecimal key (MDK - Master Derivation Key) is extremely sensitive. It is used to derive unique keys for each transaction (like CVV generation). Sharing this key breaks PCI compliance and allows unlimited fraud. Only enter this in a secure Hardware Security Module (HSM) or certified payment application.
You are initializing a Thales payShield HSM to host an MDK for CVV verification. enter the 32 hex digits cvv encryption key-mdk-
You will encounter this prompt in several real-world scenarios: A 32-digit hexadecimal key (MDK - Master Derivation
and displays: KCV: 3F2A1B