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When I run the migration [20240215143453_create_active_hashcash_stamps.rb](../blob/0.3.2/db/migrate/20240215143453_create_active_hashcash_stamps.rb) with MySQL 8.0, the following error occurs:
```
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- Possible solution to make it expensive to do [pingback DDOS](http://blog.sucuri.net/2014/03/more-than-162000-WordPress-sites-used-for-distributed-denial-of-service-attack.html):
![wp-http-ddos-by-a…
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- https://en.wikipedia.org/wiki/Hashcash
- https://blog.cachix.org/posts/2023-02-19-downtime-due-to-signup-spam/ : nix/cachix uses it to block spam
- https://gist.github.com/i3visio/388ef5154052ed81…
komuw updated
9 months ago
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I would be nice to see Wanderlust include Hashcash support for fighting spam. Basically, it's a proof-of-work system that clients do before sending the mail. Tokens are minted for each To: and Cc:, an…
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```
==== resource:extra/hashcash/hashcash-tests.factor
resource:extra/hashcash/hashcash-tests.factor: 3
Unit Test: { [ t ] [ "foo@bar.com" mint check-stamp ] }
already-unregistered
disposable T{ ev…
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It would be nice to have a `--hashcash` option for `-Ml`, so that nsjail would generate a PoW challenge with configured difficulty.
That would make it easier for hosting CTF challenges that needs s…
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Email verification is a useful brake on DoS attacks, but it's not terribly hard to script a system where an attacker generates arbitrarily many distinct e-mail addresses from the same domain, then aut…
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- Nextcloud-Version: 19.0.1
- Forms-Version: 2.0.2
I like to see this app evolving. My future intent is to use the app to create entry forms for sports events.
What I am missing is some kind of…
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If stamping with pennypost+hashcash for multiple recipients, the header(s) look(s) weird:
The first stamp-line starts with 'X-Hashcash: ',
the second stamp-line starts with ' x-hashcash: ' (note the…
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Data providers should have the ability to enable "hashcash" or PoW for requests. This enables them to protect themselves from DoS attacks. Each request type (free, subscription, pay-as-you-go, etc) ca…