Winbindd change password request

[Alexey Kobozev]

Andrew Bartlett wrote:
  > I don't see any reason why password changes should require privileged
> access.  Again, this is partly because you copied the wrong example.
> This should be identical to the plaintext operation, but with
> pre-encrypted blobs.

This can't be identical to plaintext due to usage of dual methods.
Do you see any more possible fixes except this one?