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SubjectRe: [PATCH] fscrypt: Add support for AES-128-CBC
On Thu, Mar 30, 2017 at 11:21:49PM -0700, Eric Biggers wrote:
>
> Something else to consider (probably for the future; this doesn't necessarily
> have to be done yet) is that you really only need one essiv_tfm per *key*, not
> one per inode. To deduplicate them you'd need a hash table or LRU queue or
> something to keep track of the keys in use.
>

Sorry, I screwed this up. This wouldn't work because the ESSIV key is being
derived from the per-file key, not the master key.

- Eric

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