From: Erik Aronesty <erik@q32.com>
To: Karl Johan Alm <karljohan-alm@garage.co.jp>
Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] BIP Proposal: Rate Limiting with server specified Proof of Work challenges
Date: Mon, 8 May 2017 14:58:54 -0400 [thread overview]
Message-ID: <CAJowKgJPZ=sQFXW631Czr7zYTX-ghg5ousjjkedJo-fXsefHvQ@mail.gmail.com> (raw)
In-Reply-To: <CALJw2w7CBFU-xFnar6p4k+84Umh5rsuaQ6UA1-8E2_N3_AOSpQ@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 1204 bytes --]
- It would be cool if any rate-limiting POW was specified as bytecode ...
so nodes can plug in as many "machine-captcha" things as they please, and
solvers can choose to solve... or just say "nope too hard".
- Alternately, it would be a lot nicer if you just required people to pay a
nanobit .... that could prevent DDOS even better, and generate a revenue
stream for nodes.
On Sun, May 7, 2017 at 10:48 PM, Karl Johan Alm via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:
> Hello,
>
> I am proposing a new feature for rate limiting purposes where nodes
> can make and solve arbitrary PoW challenges in return for connection
> slots (to be expanded to cover e.g. bloom filters or other DoS risky
> services).
>
> The BIP currently includes two proofs of work (sha256 and
> cuckoo-cycle) which can be combined (e.g. sha256(cuckoo-cycle) or
> sha256(sha256(sha256)), etc).
>
> Link: https://github.com/kallewoof/bips/blob/pow-connection-
> slots/bip-rate-limiting-via-pow.mediawiki
>
> Feedback welcome.
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
[-- Attachment #2: Type: text/html, Size: 1970 bytes --]
next prev parent reply other threads:[~2017-05-08 18:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-08 2:48 [bitcoin-dev] BIP Proposal: Rate Limiting with server specified Proof of Work challenges Karl Johan Alm
2017-05-08 18:58 ` Erik Aronesty [this message]
2017-05-09 1:15 ` Karl Johan Alm
2017-05-19 4:09 ` Karl Johan Alm
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAJowKgJPZ=sQFXW631Czr7zYTX-ghg5ousjjkedJo-fXsefHvQ@mail.gmail.com' \
--to=erik@q32.com \
--cc=bitcoin-dev@lists.linuxfoundation.org \
--cc=karljohan-alm@garage.co.jp \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox