VhlCfg / File / DesfireFormatAppKeySettings Value
This entry is only needed for running VHLFormat() and contains the necessary key settings parameter (KS1/2/3) for defining an application. KS3 is only needed by EV2 cards and has to be omitted for compatibility reasons if not needed.
Rules for coding key settings:
- if KS1 is different from the existing one, the key settings will be changed.
- if KS2 is different from the existing one the existing application will be deleted and created again.
- if KS3 is different from the existing one the existing application will be deleted and created again.
Properties
- Value ID: 0x0300/0x44
- Default value: AllowChangeAppMasterKey|AllowDirectoryList|AllowCreateDeleteFile|ConfigurationChangeable|0x10 AES|0x0D
Format
| Name | Type/Size | Description | ||
|---|---|---|---|---|
| KS1 | Bit mask (8 bits) |
key settings 1 of the application change key nr is
encoded in bits 4..7.
AllowChangeAppMasterkey||0x20
|
||
| RFU | Integer (bit mask area 0xF0) | Zero padding | ||
| ConfigurationChangeable | Boolean (bit 0x08) | Configuration is changeable if authenticated with the application master key. | ||
| AllowCreateDeleteFile | Boolean (bit 0x04) | Create / delete file is permitted also without application master key authentication. | ||
| AllowDirectoryList | Boolean (bit 0x02) | Free directory list without application master key authentication. | ||
| AllowChangeAppMasterKey | Boolean (bit 0x01) | The application master key is changeable with prior authentication with the current application master key. | ||
| KS2 | Bit mask (8 bits) |
Key settings 2 of the application number of keys
are encoded in bits 0-3.
3K3Des|0x05
|
||
| AES | Boolean (bit 0x80) | Specifies AES operation for the whole application | ||
| ThreeKeyTripleDES | Boolean (bit 0x40) | Specifies 3K3DES operation for the whole application | ||
| UseIsofileIDs | Boolean (bit 0x20) | If this value is defined DesfireFormatAppIsoFileID and DesfireFormatAppIsoFileDFName has to contain the ISO file ID/name of the application. | ||
| KS3Presence | Boolean (bit 0x10) | If True KS3 has to be present | ||
| RFU | Integer (bit mask area 0x0F) | Zero padding | ||
| Optional field, condition: KS3Presence | ||||
| KS3 | Bit mask (8 bits) | key settings 3 of the application, only used by EV2 based configurations. | ||
| RFU | Integer (bit mask area 0xF8) | Zero padding | ||
| AppSpecificCapabilityData | Boolean (bit 0x04) | Configuration is changeable if authenticated with the application master key. | ||
| AppSpecificVcKeys | Boolean (bit 0x02) | Create / delete file is permitted also without application master key authentication. | ||
| RFU | Integer (bit 0x01) | Zero padding | ||