Re: [Cbe-oss-dev] [patch 1/1] spufs: SPU-AES support (kspu+ablkcipher user)

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Sebastian Siewior writes:

> CBC has one limitiation: The IV is written back in the notification
> callback. That means that it is not available for crypto requests that
> depend on the previous IV (as well as crypto requests >16 KiB). Herbert Xu
> pointer out, that this is currently not the case. For instance:
> - IPsec brings its own IV on with every packet. A packet is usually <=
> 	1500 bytes. Jumbo frames should not exceed 16 KiB.
> - EcryptFS changes the IV on page bassis (every enc/dec request is
> 	PAGE_SIZE long).

The page size could be 64kB.

Paul.
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