Re: Standardizing encrypted device formats

["Adam J. Richter" <adam@yggdrasil.com>]

Jari Ruusu <jari.ruusu@pp.inet.fi> writes:
>IV computation in loop-AES is correct. IV is computed in 512 byte units
>regardless or PAGE_CACHE_SIZE, meaning that each 512 byte chunk has unique
>IV. This is optimal because minimum addressable unit on block devices is 512
>bytes.

	You're right.  I botched the math.  Your calculation produces
the same initial values on systems with a different PAGE_CACHE_SIZE
because the value of the page number will change accordingly.  I
should have tried to include a calculation of an example before claiming
there was a problem.  I apologize for making a misguided posting.

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