public inbox for bitcoindev@googlegroups.com
 help / color / mirror / Atom feed
From: Tom <tomz@freedommail.ch>
To: bitcoin-dev@lists.linuxfoundation.org
Subject: Re: [bitcoin-dev] p2p authentication and encryption BIPs
Date: Fri, 25 Mar 2016 20:42:08 +0000	[thread overview]
Message-ID: <4517402.JLxTDjem5X@garp> (raw)
In-Reply-To: <56F586B4.8020507@jonasschnelli.ch>

On Friday 25 Mar 2016 19:43:00 Jonas Schnelli via bitcoin-dev wrote:
> An encrypted channel together with a trusted full node would finally
> allow to have a secure and save SPV communication.

I guess my question didn't get across. 

Why would you want to make your usecase do connections over the peer2peer 
(net.cpp) connection at all?

Mixing messages that are being sent to everyone and encrypted messages is 
asking for trouble.
Making your private connection out-of-band would work much better.

> > Also, you didn't actually address the attack-vector.
> 
> Which attack-vector?

The statistical attack I mentioned earlier.  Which comes from knowing which 
plain text messages are being sent over the encrypted channel, So as long as 
you keep saying you want to encrypt data that identical copies of are being 
sent to other nodes at practically the same time, you will keep being 
vulnerable to that.




  reply	other threads:[~2016-03-25 20:42 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-23 15:24 [bitcoin-dev] p2p authentication and encryption BIPs Jonas Schnelli
2016-03-23 16:44 ` Tier Nolan
2016-03-23 20:36 ` Tom
2016-03-23 21:40   ` Eric Voskuil
2016-03-23 21:55   ` Jonas Schnelli
2016-03-25 10:36     ` Tom
2016-03-25 18:43       ` Jonas Schnelli
2016-03-25 20:42         ` Tom [this message]
2016-03-26  9:01           ` Jonas Schnelli
2016-03-26 23:23           ` James MacWhyte
2016-03-27 11:58             ` Jonas Schnelli
2016-03-27 17:04               ` James MacWhyte
2016-03-24  0:37   ` Sergio Demian Lerner
2016-03-24  2:16 ` Luke Dashjr
2016-03-24 17:20 ` Chris
2016-03-25 10:41   ` Tom
2016-03-25  7:17 ` Lee Clagett
2016-03-25 10:17 ` Jonas Schnelli
2016-04-01 21:09 ` Jonas Schnelli
2016-04-09 19:40   ` Lee Clagett
2016-05-18  8:00     ` Jonas Schnelli
2016-05-25  0:22       ` Lee Clagett
2016-05-25  9:36         ` Jonas Schnelli

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=4517402.JLxTDjem5X@garp \
    --to=tomz@freedommail.ch \
    --cc=bitcoin-dev@lists.linuxfoundation.org \
    /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