Update slot
Updates the flags for a given configuration slot if the slot configuration allows for it. The slot must either have the "Allow Update" flag set, or be marked as "Dormant".
Available
YubiKey firmware 2.3 and later
Command APDU info
| CLA | INS | P1 | P2 | Lc | Data |
|---|---|---|---|---|---|
| 0x00 | 0x01 | (See below) | 0x00 | 52 | (see below) |
P1: Slot
P1 determines which slot to program. It can have one of the following values:
| Option | Value |
|---|---|
| Short press (Slot 1) | 0x04 |
| Long press (Slot 2) | 0x05 |
Data: Configuration structure
The data field contains a standard configuration structure.
| Field | Size | Description |
|---|---|---|
| Fixed Data | 16 | Do not set this field. |
| UID | 6 | Do not set this field. |
| AES Key | 16 | Do not set this field. |
| Access Code | 6 | Do not set this field. |
| EXT Flags | 1 | Extended flags |
| TKT Flags | 1 | Ticket configuration flags |
| CFG Flags | 2 | General configuration flags |
| Reserved | 2 | Must be zero |
| CRC | 2 | CRC16 value of all the fields |
The only changes that are allowed are the setting of the following flags:
- Ticket Flags: Tab First, Append Tab 1, Append Tab 2, Append Delay 1, Append Delay 2, Append Carriage Return
- Config Flags: Pacing 10ms, Pacing 20ms
- Extended Flags: Serial Number Visibility (Button, USB, API), Use Numeric Keypad, Fast Trigger, Allow Update, Dormant, Invert LED
Response APDU info
| Lr | Data | SW1 | SW1 |
|---|---|---|---|
| 0x06 | Status structure | 0x90 | 0x00 |
Examples
TODO