Bitcoin Dev Archive Topics

Network privacy: Dandelion, Tor, encrypted transport

What a node leaks on the wire: which transactions it originated, who it talks to, and that it is a Bitcoin node at all. Dandelion, Tor and I2P support, and the encrypted transport that took two tries (BIP 151, then BIP 324) are the threads here.

36 threads and 281 messages, 26 Jun 2012 to 24 Sep 2026.

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BIPs

Bitcoin Optech

The threads, in order

Listed by the date of each thread's first message.

2012 2 threads

26 Jun 2012
Tor hidden service support Pieter Wuille
5 messages
27 Jun 2012
Tor hidden service support grarpamp
1 message

2013 6 threads

14 May 2013
Bitcoin2013 Speakers: Include your PGP fingerprint in your slides Peter Todd
5 messages
30 Jul 2013
Tor and Bitcoin Bazyli Zygan
9 messages
5 Aug 2013
Safe auto-updating Wendell
7 messages
9 Aug 2013
BitMail.sf.net - encrypted p2p email Randolph D.
5 messages
26 Oct 2013
Payment protocol for onion URLs. Greg Maxwell
10 messages
12 Dec 2013
Merge avoidance and P2P connection encryption Mike Hearn
9 messages

2014 2 threads

15 Jan 2014
Tor / SPV Mike Hearn
10 messages
28 Jul 2014
Abnormally Large Tor node accepting only Bitcoin traffic Jeremy Rubin
18 messages

2015 4 threads

17 Mar 2015
Improving resistance to transaction origination harvesting Justus Ranvier
2 messages
20 Mar 2015
re Improving resistance to transaction origination harvesting Justus Ranvier
1 message
18 Aug 2015
Bitcoin XTs Tor IP blacklist downloading system has significant privacy leaks. F L
3 messages
19 Aug 2015
Bitcoin XTs Tor IP blacklist downloading system has significant privacy leaks. Christophe Biocca
6 messages

2016 3 threads

23 Mar 2016
p2p authentication and encryption BIPs Jonas Schnelli
23 messages
8 Jun 2016
BIP 151 MITM Alfie John
5 messages
28 Jun 2016
BIP 151 use of HMAC_SHA512 Rusty Russell
59 messages

2017 3 threads

13 Feb 2017
BIP151 protocol incompatibility Eric Voskuil
13 messages
14 Feb 2017
BIP150/151 concerns and some comments Jonas Schnelli
4 messages
12 Jun 2017
BIP proposal - Dandelion: Privacy Preserving Transaction Propagation Andrew Miller
3 messages

2018 2 threads

10 May 2018
BIP proposal - Dandelion: Privacy Preserving Transaction Propagation Bradley Denby
9 messages
3 Sep 2018
Overhauled BIP151 Jonas Schnelli
6 messages

2019 3 threads

22 Mar 2019
New BIP - v2 peer-to-peer message transport protocol (former BIP151) Jonas Schnelli
5 messages
28 Oct 2019
node-Tor is now open source in clear (and modular) Aymeric Vitte
1 message
17 Nov 2019
v3 onion services Mr. Lee Chiffre
9 messages

2020 2 threads

25 Feb 2020
node-Tor - phases 4 and 5 Aymeric Vitte
1 message
3 Jun 2020
Time-dilation Attacks on the Lightning Network Gleb Naumenko
10 messages

2021 2 threads

26 May 2021
Wallet fingerprinting and other privacy issues in Bitcoin Core Prayank
1 message
18 Oct 2021
Bitcoin-s 1.8 released with DLCs negotiation via Tor Chris Stewart
1 message

2022 3 threads

8 Oct 2022
Refreshed BIP324 Dhruv M
22 messages
12 Oct 2022
Wallet Fingerprinting with nLocktime and nVersion alicexbt
1 message
2 Nov 2022
Preventing/detecting pinning of jointly funded txs Anthony Towns
4 messages

2023 1 thread

16 Oct 2023
Goldfish: Spoofing wallet fingerprints to improve privacy alicexbt
1 message

2026 3 threads

23 Mar 2026
BIP324 transport performance: CPU baseline, GPU offload, batching and latency tradeoffs Vano Chkheidze
1 message
5 May 2026
A Post-Quantum Path for BIP 324 Olaoluwa Osuntokun
8 messages
20 Sep 2026
BIP324 One-Byte Message Type ID Alias Assignment Anthony Towns
3 messages