RE: iSCSI Some Thoughts on Digests

["Bernard Aboba" <aboba@internaut.com>]

>Jim,I think your analysis is based on links only.  The problem that was to
be
>solved was the problem of travel through Routers, Switches, and Gateways.
>These are generally unprotected paths.  So there are, in general, no CRC of
>any kind being applied to the data that is being passed from one port to
>another.  The proposed Digest is mainly to protect against this problem.

Well, this might be an argument for a cryptographic message
integrity check (MIC) (e.g. IPSEC AH/ESP null), but do you really
think that there is a justification for an application-specific MIC?

BTW, I'm told that chipsets will soon exist that will be capable of
1 Gbps throughput with IPSEC AH/ESP null, so speed should not be a
concern.