DESFire Key Settings Interpreter
Decode the 2-byte DESFire GetKeySettings (0x45) response: keySettings byte (ChangeKey access, config flags, master-key changeable), and the numKeys / crypto-type byte.
Input
Decoded
Paste 2 hex bytes.
All decoding runs locally.
About DESFire key settings
The keySettings byte governs ChangeKey privilege, configuration freeze, and whether the application master key can be rolled. The companion byte carries the crypto type (DES / 3DES / AES-128) and the number of application keys (0–14).