Method

GckSessionderive_key

Declaration [src]

GckObject*
gck_session_derive_key (
  GckSession* self,
  GckObject* base,
  gulong mech_type,
  GckAttributes* attrs,
  GCancellable* cancellable,
  GError** error
)

Description [src]

Derive a key from another key. This call may block for an indefinite period.

If the attrs GckAttributes is floating, it is consumed.

Parameters

`base`	`GckObject`
	The key to derive from.
	The data is owned by the caller of the function.
`mech_type`	`gulong`
	The mechanism to use for derivation.
`attrs`	`GckAttributes`
	Additional attributes for the derived key.
	The data is owned by the caller of the function.
`cancellable`	`GCancellable`
	Optional cancellation object, or `NULL`.
	The argument can be `NULL`.
	The data is owned by the caller of the function.
`error`	`GError **`
	The return location for a `GError*`, or `NULL`.

Return value

Returns:	`GckObject`
	The new derived key or `NULL` if the operation failed.
	The caller of the method takes ownership of the data, and is responsible for freeing it.