Reference Manual


Device / CryptoKey / Entry Value

Key entry which contains a key and its according CryptoAlgorithm with KeyAccessRights used by the crypto manager.

Properties

Format

Name Type/Size Description
AccessRights.KeySettings Bit mask (8 bits) Access rights and key info

Access rights: By default, all operations are allowed. With this bitmask, however, this key can be locked for certain operations.

IsVersion Boolean (bit 0x80) -
IsDivInfo Boolean (bit 0x40) The value for diversification data can be found in Project/DiversificationData.
IsDivInfoVhl Boolean (bit 0x20) The value for diversification data can be found in VhlCfg/File/DesfireDiversificationData.
RFU Integer (bit mask area 0x18) Zero padding
DenyFormat Boolean (bit 0x04) -
DenyWrite Boolean (bit 0x02) -
DenyRead Boolean (bit 0x01) -
Optional field, condition: IsVersion
AccessRights.Version Integer (8 bits) Key version.
Optional field, condition: IsDivInfo
AccessRights.DiversificationMode Enumeration (8 bits) Values:
  • NoDiversification (0x00)
  • ModeAv2 (0x02)
    Key diversification according to NXP AN10922.
AccessRights.DivIdx Integer (8 bits)

Index for data converter rule: Possible values:

  • Range 0..0x7F: Rule located in project
Algorithm Enumeration (8 bits) This byte defines the crypto algorithm that shall be used when working with the key that is following. The CryptoAlgorithm furhtermore implies the length of the following key
Values:
  • DES (0x01)
    Keylength: 8 byte
  • TripleDES (0x02)
    Keylength: 16 byte
  • ThreeKeyTripleDES (0x03)
    Keylength: 24 byte
  • AES (0x04)
    Keylength: 16 byte
  • MifareClassic (0x05)
    Keylength: 6 byte
Key ASCII string (until end of frame) This is the key that shall be used for authentication. (length depends on crypto algorithm)