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Introducing Proof-of-Work Defense for Onion Services | Tor Project(blog.torproject.org)

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zquestz@lemm.ee
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A new DoS protection mechanism for Tor leveraging Proof-of-Work.

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huginn@feddit.it
45 points

Man the comments section on the tor project blog are just as smooth brained as YouTube comments sections.

I kinda expected better of the average reader than commenting “hmm another captcha” 6 hours after they explicitly clarified this isn’t visible to the user (which was also implicit in the whole 30ms time specified).

Like 10 points for reading the article but -30 for reading comprehension.

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fogetaboutit@programming.dev
25 points

Huh, who wouldve thought this is how PoW would actually be used

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Eager Eagle@lemmy.world
15 points
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The creators, actually.

The concept was invented by Moni Naor and Cynthia Dwork in 1993 as a way to deter denial-of-service attacks and other service abuses such as spam on a network by requiring some work from a service requester.

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m-p{3}@lemmy.ca
14 points

At least it’s only used when the server is getting stressed.

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WhatAmLemmy@lemmy.world
23 points

This is a pretty excellent use case for PoW. I could see this being adopted by other DDoS services, server stacks, and eventually make its way into openwrt, pfsense etc.

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neuromancer@lemmy.world
7 points
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newIdentity@sh.itjust.works
3 points

If Netgate added this to the internet protocols, no other device would be able to communicate with pfSense, unless they also used this special network stack.

I mean technically that’s also the case with the Tor protocol.

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RobotToaster@infosec.pub
11 points
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This isn’t the first proof of work “captcha” system, there’s several already out there.

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Atemu@lemmy.ml
15 points

This one, however, is built right into the protocol.

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beeb@lemm.ee
3 points
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shortwavesurfer@monero.town
6 points

Sweet! This will help things like dread for sure.

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