The Chaincode Podcast

Pieter Wuille & Amiti Uttarwar and the P2P network - Episode 16

Oct 26, 2021

41:24

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Highlights

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Episode notes

Is There a Difference Between Public and Private Connections?

02:41

Is There a Transport Layer for These Different Messages?

02:02

Is There a Difference Between IP Addresses?

03:33

Introduction

6min

Is There a Transport Layer for These Different Messages?

2min

Aderman v One

2min

Is There a Difference Between IP Addresses?

4min

The Cibil Attack Is a Problem in a Bit.

3min

The Eclipse Attack

2min

Is There a Difference Between Inbound and Outbound Connections?

3min

How to Test Address Relay?

3min

A Known Technique in Networking

5min

10.

Is There a Way to Ensure the Longest Possible Time These Addresses Propagate?

2min

11.

Using Time Stamps to Infer Topology

2min

12.

Is There a Difference Between Public and Private Connections?

3min

13.

The Finger Print Attacks Are a Whole Class of Attacks

3min

14.

The Problem With Data Base Is Transient.

2min

P2P experts Pieter and Amiti chat about the P2P network.

In this episode they cover:

- AddrRelay high-level goals and constraints (1:15)

- Very different than the goals of blocks and transactions

- Marginal fee rate (4:35)

- Should we consider different transport layers? (5:40)

- FIBRE Episode with Matt Corallo (7:40)

- The introduction of Addrman in 2012, PR #787 (8:55)

- What existed before AddrMan and the evolution of DoS resistance.

- Eclipse Attack paper (14:55)
- Sybil attack
- Addrman and eclipse attacks wiki page
- Anchors connections - PR #17428

- Connection exhaustion issue (19:50)

- Erlay (paper, BIP) (20:55)

- AddrRelay (23:15)

- Limiting addr black holes - PR #21528

- Rate limiting on address gossip in 22.0

- Leaky bucket rate limiter (27:00)

- Address Spam (29:20)

- Estimating the Node Degree of Public Peers and Detecting Sybil Peers Based on Address Messages in the Bitcoin P2P Network by Matthias Grundmann (31:35)
- Coinscope paper (31:45)
- TxProbe (32:00)

- Separate network stack (37:20)

- Fingerprint attacks (37:15)

- ASMAP (39:00)

Thanks to Caralie for the sound engineering.

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