Re: [tor-talk] Proposal: Making Tor Faster with TLS 1.3

[James <james@xxxxxxxxx>]

Just to play devil's advocate; I see you've listed the benefits, but to make this a more rounded proposal, what about the drawbacks?


On 2 February 2019 16:10:42 GMT, Nathaniel Suchy <me@xxxxxxxxxxx> wrote:
>Hi,
>
>This is an informal proposal to make Tor faster. Okay as follows:
>
>The Tor Network increasingly suffers from the challenge of dealing with
>high latency and often slow connection speeds. In an aim to protect
>privacy, Tor Browser does not have a persistent cache of web content
>meaning it has to be refetched every session. This means if you want to
>load a blog with a 10MB Javascript bundle, well you might be waiting a
>bit before reading the article. Likewise increasing speed and reducing
>latency is extremely important. The TLS 1.2 handshake's phases 2 and 3
>have a total of 3 round trips before any data can be transferred. This
>could add 100s of MS of latency as the relays message back and forth
>with one another. TLS 1.3 has a feature called 0RTT
>(See: https://blog.cloudflare.com/introducing-0-rtt/
><https://blog.cloudflare.com/introducing-0-rtt/>), the Tor network
>could have considerable speed and performance gains if this is
>implemented into Tor. The first benefit is reduced latency because of
>handshakes, the second benefit is better performance on the relays
>(less handshakes) freeing up relays and making faster sessions.
>
>I look forward to hearing your thoughts on this.
>
>Cordially,
>Nathaniel Suchy
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