ICT Protege - Config Example: Custom Credential Programming

Config Example: Custom Credential
This programming example will demonstrate the process for one of the more complex config scenarios:
programming a reader to read a custom credential.
In this scenario we will createa config to program the reader to read a DESFire card, using the following steps:
1. Add the encryption key for our DESFire card into a keyslot.
2. Configure the DESFire access credential settings.
3. Configure a format string that matches the data format of the card.
4. Create a card linkage which links these components together so that the reader can decrypt the card data and
find the custom card format and encryption key to interpret the DESFire credential type.
This is a hypothetical scenario. Before programming a custom credential TLVyou would need to know the
specific credential configuration requirements, such as App ID, key number, data format, etc.
Add the Encryption Key
We will first add the encryption key for our DESFire card into a keyslot, using a Keyslot Hex TLV (see page20).
For this example, we want to add encryption key FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF to keyslot 2.
1. Tap Add TLV and select the Hex option.
2. Enter the hex code 03 11 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF 02 (omit the spaces).
Configure the DESFire Credential
Credential settings are configured using the Access Credentials TLV (see page13).
1. Tap Add TLV and select Access Credentials.
2. Apply the following access credential configuration:
- Slot: 7
- Credential Type: Mifare DESFire
- App ID: A1B2C3
- AESKeyslot: 3
- File Number: 0
- Key Number: 1
- Diversification: AV2 Diversification
Configure the Format String
Our format string needs to be added using the Custom Card Format Slots TLV (see page16).
The format string needs to match the data format of our DESFire card. In this example we will use 64 bit raw, so
the reader will read the first 64 bits of data off the card, and we will add it to slot 6.
1. Tap Add TLV and select Custom Card Format Slots.
2. Set the Slot Number to 6.
3. Tap Format and enter the format string 25363472.
Custom card formats must be entered using ASCIIcode. 25363472 is the ASCII code for %64r (64 bit raw).
ICT Card Reader | Configuration Guide 28