Derive a key from another key.
This call may block for an indefinite period.
If the attrs
Attributes is floating, it is consumed.
this |
The session to use. |
mech_type |
The mechanism to use for derivation. |
attrs |
Additional attributes for the derived key. |
cancellable |
Optional cancellation object, or |
base |
The key to derive from. |
the new derived key or |