[dm-devel] [PATCH v3 1/6] crypto: essiv - create wrapper template for ESSIV generation

Herbert Xu herbert at gondor.apana.org.au
Thu Jun 20 12:52:14 UTC 2019


On Thu, Jun 20, 2019 at 09:30:41AM +0200, Ard Biesheuvel wrote:
>
> Is this the right approach? Or are there better ways to convey this
> information when instantiating the template?
> Also, it seems to me that the dm-crypt and fscrypt layers would
> require major surgery in order to take advantage of this.

My preference would be to encode the sector size into the key.
Hardware that can only support some sector sizes can use fallbacks
as usual.

Cheers,
-- 
Email: Herbert Xu <herbert at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt




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