Derive a key from another key.
This call will return immediately and complete asynchronously.
If the attrs
Attributes is floating, it is consumed.
this |
The session to use. |
mechanism |
The mechanism to use for derivation. |
attrs |
Additional attributes for the derived key. |
cancellable |
Optional cancellation object or |
base |
The key to derive from. |
callback |
Called when the operation completes. |
user_data |
Data to pass to the callback. |