The SmartCard Settings payload is designated by specifying com.apple.security.smartcard as the PayloadType.
This payload controls restrictions and settings for SmartCard pairing on macOS v10.12.4 and later. In addition to the settings common to all payloads, this payload defines the following keys:
Value: Optional. If 1, when the SmartCard is removed, the screensaver will be enabled. Default is 0.
Availability: Available in macOS 10.13.4 and later.