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Re: [hybi] It's time to ship

Eric Rescorla <ekr@rtfm.com> Mon, 10 January 2011 18:53 UTC

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From: Eric Rescorla <ekr@rtfm.com>
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Subject: Re: [hybi] It's time to ship
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2011/1/10 Ian Fette (イアンフェッティ) <ifette@google.com>:
> I guess you're right in that it wouldn't require the intermediary to be
> active. It would however require the intermediary to maintain state for each
> connection, correct? (As opposed to XOR where the intermediary could be
> mostly stateless as the the "masking key" would be embedded in the frame).
> How large is the state that would need to be maintained?

Basically the AES key schedule, which is pretty small (4k for a
speed-optimized version)
plus as much of the frame as you buffer [the whole thing if the key is
at the end, obviously.]

-Ekr

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