From: bfd@cock•lu
To: Chris Belcher <belcher@riseup•net>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] Committed bloom filters for improved wallet performance and SPV security
Date: Sun, 02 Apr 2017 09:49:03 +1000 [thread overview]
Message-ID: <fd0fe6db5af3e7407744ebbe521797bf@cock.lu> (raw)
In-Reply-To: <f8511114-4bcd-32a0-f654-414a723781fa@riseup.net>
On 2017-02-17 11:28, Chris Belcher via bitcoin-dev wrote:
> I think this committed bloom filter idea is very good and much better
> than bip37, but for good privacy for when bitcoin is used often still
> requires certain behavior namely downloading blocks
> from many different peers with new tor circuits.
>
> Note that I've been dealing with counting transaction subgraphs but
> actually finding them from blocks might also be computationally
> infeasible. Although a Bayesian approach worked very
> well for similar transaction subgraph linking
> [https://arxiv.org/pdf/1612.06747v3.pdf]
>
> It would also be interesting to analyze what information a spy can get
> if they are missing some blocks that the wallet downloaded.
>
> For the long term, private and high-volume bitcoin use will be best
> served by off-chain transactions. They will probably be a huge win just
> because the large and public blockchain is such a non-private
> way of doing things.
>
Thank you for the analysis, this generally matches my views about the
properties offered by the system.
I've generally developed the opinion that BIP37 is effectively unused
by all but a very small number of wallets and services now, setting up
sinkhole nodes in the network to monitor `filterload` commands seems
to back that up.
prev parent reply other threads:[~2017-04-01 23:49 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-09 8:26 bfd
2016-05-09 8:57 ` Gregory Maxwell
2016-05-11 20:06 ` Bob McElrath
2016-05-11 20:29 ` Bob McElrath
2016-07-28 21:07 ` Leo Wandersleb
2017-01-06 22:07 ` Erik Aronesty
2017-01-03 20:24 ` bfd
[not found] ` <77b6dd25-0603-a0bd-6a9e-38098e5cb19d@jonasschnelli.ch>
2017-01-03 20:18 ` bfd
2017-01-03 22:18 ` Aaron Voisine
2017-01-03 22:28 ` bfd
2017-01-03 23:06 ` adiabat
2017-01-03 23:46 ` Aaron Voisine
2017-01-04 0:10 ` bfd
2017-01-04 0:36 ` Aaron Voisine
2017-01-04 6:06 ` Eric Voskuil
2017-01-04 16:13 ` Leo Wandersleb
2017-01-04 7:47 ` Jonas Schnelli
2017-01-04 8:56 ` Aaron Voisine
2017-01-04 10:13 ` Jorge Timón
2017-01-04 11:00 ` Adam Back
2017-01-06 2:15 ` bfd
2017-01-06 7:07 ` Aaron Voisine
2017-01-05 7:06 ` Chris Priest
2017-01-05 7:45 ` Eric Voskuil
2017-01-05 14:48 ` Christian Decker
2017-01-06 20:15 ` Chris Priest
2017-01-06 21:35 ` James MacWhyte
2017-01-06 21:50 ` Eric Voskuil
2017-01-06 2:04 ` bfd
2017-03-15 22:36 ` Tom Harding
2017-03-16 0:25 ` bfd
2017-03-16 15:05 ` Tom Harding
2017-02-17 0:28 ` Chris Belcher
2017-04-01 23:49 ` bfd [this message]
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=fd0fe6db5af3e7407744ebbe521797bf@cock.lu \
--to=bfd@cock$(echo .)lu \
--cc=belcher@riseup$(echo .)net \
--cc=bitcoin-dev@lists$(echo .)linuxfoundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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