Bug#482092: XTS and LRW mode of operation

[David Härdeman <david@hardeman.nu>]

On Fri, May 30, 2008 at 12:19:08AM +0200, Max Vozeler wrote:
> I wonder how we should best handle this difference. We 
> could try to offer the valid key sizes only after the user
> has chosen the iv-algorithm, but that is more involved 
> because users may currently change parameters in any order.
>
> Perhaps we should just offer the regular key sizes (128, 
> 192, 256 bits) and adjust them (adding 128 or doubling it)
> depending on the iv-algorithm selected. 

Other options would be to remove the keysize option entirely and select 
reasonable defaults or to replace the numerical alternatives with 
generic descriptions ("key strength: high/medium/low").

--
David Härdeman