Brink

The Bitcoin Development Podcast

Technology EN ↓ 6 episodes

Join Brink as we talk with our fellows, grantees, and friends in the Bitcoin space about Bitcoin and Lightning technology.

Be sure to visit the podcast's website and support the creator: brink.dev

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Brink

Episodes

Discussing Pre-25.0 Bitcoin Core Vulnerability Disclosures 10.10.2024 1:05:22

Brink engineers Gloria Zhao and Niklas Gögge are joined by 0xB10C talk through the recently disclosed Bitcoin Core pre-25.0 vulnerabilities. This continues our previous discussions in Episode 4 on pre -0.21.0 and Episode 5 on 0.21.0 Bitcoin Core Vulnerabilities. (0:00) - Introduction (0:48) - The DoS vulnerability in headers sync (3:12) - Discussion of checkpoints in the code (10:11) -...

Discussing Pre-22.0 Bitcoin Core Vulnerability Disclosures 31.07.2024 24:16

Brink engineers Gloria Zhao and Niklas Gögge talk through the recently disclosed Bitcoin Core pre-22.0 vulnerabilities. This continues our previous discussion in Episode 4 on pre -0.21.0 Bitcoin Core Vulnerabilities. (0:00) - Introduction (1:07) - Background on Bitcoin peer-to-peer address relay (4:30) - Bitcoin Core’s AddrMan (address manager) data structure (5:37) - Disclosure of remote...

Discussing Pre-0.21.0 Bitcoin Core Vulnerability Disclosures 11.07.2024 51:16

Brink engineers Gloria Zhao and Niklas Gögge talk through the recently disclosed Bitcoin Core pre-0.21.0 vulnerabilities. (0:00) - Introductions and motivation for disclosures (3:17) - Absolute value of a signed integer leads to rejection of all blocks (13:50) - Too many misbehaving peers leads to DoS (21:17) - Nested loop without deduplication leads to stalling (27:34) - Vulnerability in...

Sebastian Falbesoner on Code Review and BIP324 06.09.2023 43:48

Sebastian Falbesoner (theStack) and Mike Schmidt talk about Bitcoin Core code review, BIP324, and Sebastian’s plans for the next year . (0:00) - Sebastian’s journey to Bitcoin development (4:00) - Thoughts on contributing to Bitcoin Core in a remote, part time capacity (7:26) - What is the Bitcoin Core test framework? (12:15) - From testing to PR authorship (and Bitcoin Core #25957) (17:05) -...

Mempool Ancestors and Descendants 24.11.2021 19:11

John and Gloria continue their discussion of Bitcoin's mempool by explaining parent, child, ancestor and descendant transactions. (0:00) - Parent and child transactions (2:23) - Relevance of ancestors and descendants to the mempool (4:17) - Reasons transactions leave the mempool (6:58) - Block construction considerations for miners (11:46) - Full node performance considerations (16:15) - Child...

Mempool Policy 10.11.2021 26:21

Brink co-founder, John Newbery, and Brink fellow, Gloria Zhao, discuss Bitcoin Core's mempool policy. 0:25 - What is a mempool and why have one? 6:58 - Denial of service protection 8:38 - What is mempool policy? 10:15 - 3 types of mempool policy and examples of each 12:30 - Mempool policy: transaction size too small or too large 17:26 - Mempool policy: BIP125 Replace by Fee (RBF) 19:57 - Transacti...