The type of the key derivation operation was incorrect.
Also neither the PAKE nor key_derivation algorithm knows how many bytes
to transfer at this stage.
There is no optimal or recommended size, PAKEs don't mandate it either
(with the exception of OPAQUE, but that uses it internally and won't be
using this interface).
Adding an input length parameter to allow the application to control how
many bytes the PAKE takes from the key derivation.
Signed-off-by: Janos Follath <janos.follath@arm.com>
1062a24152