Specifies an item should be stored in the device's Secure Enclave.
- iOS 9.0+
- macOS 10.12+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
The only keychain items supported by the Secure Enclave are 256-bit elliptic curve private keys (those that have key type
k). Such keys must be generated directly on the Secure Enclave using the
Sec function with the
k key set to
k in the parameters dictionary.