On Wed, 13 Mar 2019 14:14:37 +0100,
Derek Atkins wrote:
Vincent Breitmoser <look@my.amazin.horse> writes:
The chunking was introduced for just one purpose: To be able to detect rare
transmission errors earlier than at the end of the message.
...really? All this is just to save a few cpu cycles in the rare cases of
data
corruption that should have been handled by other layers (filesystem /
transport
layer) in the first place? Why even bother?
No, it is more than that. Imagine using OpenPGP to encrypt a full
filesystem to tape backup. You necessarily want to be able to chunk
that as you are saving (and restoring).
I don't think Vincent is disputing the validity of Werner's use case
per se. I think he is saying the marginal utility of that is tiny
(it's "just a performance improvement") relative to ciphertext
integrity (a security property).
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