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BITCOIN RAILS #34: Bitcoin’s Security & Quantum Risks—and the Future of Satoshi’s Coins | with Jameson Lopp Jameson Lopp “Most people don’t think about security until it’s too late,” says the Casa co-founder and CSO. One of the most prolific thought-leaders in Bitcoin security and privacy, there are few... show more
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![BITCOIN RAILS #61: QUANTUM CRYPTOGRAPHY FOR BITCOIN | with Dan Boneh Dan Boneh 🔗 YOUTUBE: 🌿 SPOTIFY: One of the most prolific and influential cryptographers in the world, it’s difficult to fully quantify the impact that Dan Boneh has had on Bitcoin and digital assets more broadly. Through both his own research and his mentorship of some of the space’s most important contributors — e.g. Andrew Poelstra, Benedikt Bünz ☕️, and Robin Linus 🥖 — few people have done more to shape the cryptographic foundations underlying modern blockchains and digital finance. More recently, Dan co-authored Google's widely discussed paper, “Securing Elliptic Curve Cryptocurrencies against Quantum Vulnerabilities,” which reduced prior estimates of the resources required to run Shor’s algorithm against the elliptic-curve cryptography used by Bitcoin. The paper reignited debate around quantum computing timelines and the long-term security assumptions behind modern cryptocurrencies. In this episode of Bitcoin Rails, Dan and I discuss the current state of quantum computing, its potential implications for Bitcoin, and how he believes the Bitcoin community should think about preparing for a post-quantum future over the coming decade and beyond. And yes, Dan shares his take on the “when quantum” question in the interview, among other key perspectives. This episode of Bitcoin Rails is brought to you by my NEW sponsors: LayerTwo Labs LayerTwo Labs — developing research, software, and technologies for scaling Bitcoin via the integration of Drivechains (BIP 300/301) Hashi on Sui — a primitive for executing Bitcoin Defi transactions, without having to trust a federated bridge or other centralized entity BitBox BitBox — an open-source Bitcoin-only hardware wallet, with smooth UX and no compromises on security. Check out Bitbox [dot] swiss and use code BITCOINRAILS to get a discount TIMESTAMPS: 00:00 — Intro and Dan’s history with cryptography and Bitcoin 11:44 — Shor's algorithm: how a 1994 paper became cryptography's most important threat 16:39 — Building a quantum computer: superconducting qubits vs neutral atoms 25:37 — When should we start worrying about quantum computers? The timeline debate 31:51 — Have we already reached quantum computing's “ahá” moment? 39:09 — Inside the Google paper: how Shor's algorithm was optimized 49:57 — The Bitcoin mempool attack and the 10-minute window 59:21 — Mitigation: what should Bitcoin do to prepare for quantum? 1:11:54 — Hash-based vs lattice-based signatures: Dan's case for lattice 1:23:15 — ZK proofs, BIP361, and what to do with Satoshi's coins 1:31:52 — Encrypted mempools and MEV 1:38:29 — Why Bitcoin will survive quantum and Dan's message to Bitcoin builders](https://image.24vids.com/tw-2057110642662797602/amplify_video_thumb/2057106711635275776/img/Pa2J_IxNMDKku2uu.jpg)
![BITCOIN RAILS #69: ZERO-KNOWLEDGE PROOFS FOR POST-QUANTUM BITCOIN | with Benedikt Bünz 🔗 YOUTUBE: 🌿 SPOTIFY: While many Bitcoiners remain hopeful the network will embrace zero-knowledge proofs for protocol-level use cases, practical adoption has remained limited outside of BitVM and a handful of experimental proposals. Most of the world’s ZKP research has circled around Ethereum and other ecosystems, where significant resources have been dedicated to advancing these systems, particularly for scaling and privacy applications. One of the most notable contributors to this research is Benedikt Bünz ☕️ — professor of cryptography at NYU and collaborator of Dan Boneh, who together inarguably form one of the strongest blockchain-applied cryptography teams in the world. The pair recently announced they’ll be leading the new post-quantum cryptography unit localhost research — the first dedicated PQ research effort within a major Bitcoin development organization. With Benedikt leading the charge on the use of zero-knowledge proofs for post-quantum mitigation, the question emerges: will the post-quantum transition be the catalyst to finally bring zero-knowledge proofs to Bitcoin's core protocol? In more detail, Benedikt and I discuss: - Why ZKPs haven’t been widely adopted by the Bitcoin technical community — and why the threat of quantum computers may change that posture going forward - How ZKPs could be used for signature batching to address larger post-quantum signatures in Bitcoin’s post-quantum era - Why Bitcoiners will likely prioritize hash-based signatures as an initial post-quantum scheme — rather than more efficient but less proven alternatives (e.g., lattice-based) - How ZKPs have evolved over the last decade and may finally be ready for Bitcoin’s strict requirements around trust assumptions - Why Benedikt and Dan are teaming up with localhost research to create the first post-quantum cryptography unit within a major Bitcoin development organization + what they hope to accomplish This episode of Bitcoin Rails is brought to you by: LayerTwo Labs LayerTwo Labs — developing research, software, and technologies for scaling Bitcoin via the integration of Drivechains (BIP 300/301) Hashi on Sui — a primitive for executing Bitcoin DeFi transactions, without having to trust a federated bridge or other centralized entity BitBox BitBox — an open-source Bitcoin-only hardware wallet, with smooth UX and no compromises on security. Check out Bitbox [dot] swiss and use code BITCOINRAILS to get a discount TIMESTAMPS: 00:00 — Intro 00:22 — Benedikt's background 04:10 — How Benedikt got into Bitcoin and cryptography 07:42 — First ZK project: proving exchange solvency after Mt. Gox 16:01 — ZK proofs explained 27:43 — How security gets popular & ZK proofs in Bitcoin 35:49 — Other applications of ZK proofs for Bitcoin 40:15 — Why ZK proofs haven't been adopted in Bitcoin 50:46 — Why the Bitcoin post-quantum transition needs ZK proofs 01:07:00 — Cryptographic agility and why lattices win 01:18:00 — The size problem and how SNARKs solve it 01:33:57 — Proving a Bitcoin block in a laptop in 1.5 seconds 01:37:12 — Bitcoin as the primary quantum target 01:40:47 — ZK proofs for seed phrase recovery](https://image.24vids.com/tw-2077037171521790155/amplify_video_thumb/2077029285437612032/img/adv6N-PXvunUqveH.jpg)
![BITCOIN RAILS #62: BITCOIN'S 3 BIGGEST CHALLENGES | with Neha Narula Director of Digital Currency Initiative (DCI) Massachusetts Institute of Technology (MIT) 🔗 YOUTUBE: 🌱 SPOTIFY: Neha Narula is the Director of the MIT Digital Currency Initiative, where she focuses on Bitcoin research and the broader design tradeoffs of decentralized money systems. Her work often centers on what Bitcoin gets right—and where it runs into hard limits—especially around scaling, decentralization, and how systems behave as global demand increases. In this interview, Neha and I explore longer-term risks to Bitcoin—including advancements in quantum computing and the implications of a diminishing block subsidy—as well as the ongoing challenge of scaling Bitcoin without losing access to self-custody. A thoughtful conversation on how Bitcoin may change in the coming years, we also explore its social and governance dynamics—including tensions within the development community over protocol changes, scaling philosophies, and the future direction of the system. This episode of Bitcoin Rails is brought to you by: LayerTwo Labs LayerTwo Labs — developing research, software, and technologies for scaling Bitcoin via the integration of Drivechains (BIP 300/301) Hashi on Sui — a primitive for executing Bitcoin Defi transactions, without having to trust a federated bridge or other centralized entity BitBox BitBox— an open-source Bitcoin-only hardware wallet, with smooth UX and no compromises on security. Check out Bitbox [dot] swiss and use code BITCOINRAILS to get a discount TIMESTAMPS: 00:00 Intro 00:17 Neha’s Origins 02:26 Bitcoin to MIT 04:40 Media Lab Culture and Mission 11:34 CBDCs as Digital Cash Debate 24:42 Funding Model and Bitcoin Security Budget 29:55 Reorg Risk and Quantum Computing 32:14 Bitcoin Dev Funding Map 42:49 Governance and Corporate Stakes 50:23 Quantum Tradeoffs Framework 56:02 Post Quantum Proposals 58:59 Prioritize PQ Transactions 01:00:54 Satoshi Coins Debate 01:02:12 Mining Incentives And Price 01:08:08 Corporate Funding And Governance 01:10:54 Scaling Self Custody And L2s 01:20:30 Bitcoin Kernel And Wrap Up](https://image.24vids.com/tw-2059683810682220662/amplify_video_thumb/2059680624261083138/img/zFnXZj4lB8Z3l2qG.jpg)
![BITCOIN RAILS #59: Post-Quantum Bitcoin Signatures (+ their tradeoffs) | with BIP 360 co-author Ethan ✨ is on BlueSky✨ Heilman 🐱 and Blockstream Head of Research Jonas Nick 🔗 YOUTUBE: 🌿 SPOTIFY: According to BIP 360 co-author Ethan Heilman, Bitcoin needs a minimum of two soft forks to become quantum resistant: P2MR (or an output type that can safely execute PQ signatures) + a post-quantum checksig (signature scheme). Ethan and the BIP 360 team (including myself and Hunter Beast 🕯️) introduced the P2MR part via a BIP 360 update late last year—but the question remains, what’s the most appropriate PQ signature scheme for Bitcoin? They all have substantive tradeoffs, but hash-based signatures seem to be leading technical discourse—likely due to recent optimizations by Jonas Nick and the broader Blockstream research team. It was an honor to sit down with both of these men - arguably the two most influential and productive cryptographers in Bitcoin quantum mitigation right now - for an in-depth review of the leading PQ signature schemes and a temperature check on Bitcoin’s post-quantum planning process. TBH, if you want to skip the noise and jump straight to the signal on quantum, this is the interview to watch. In this episode, we discuss: - What needs to happen at the soft fork, infra, and mitigation levels to fully quantum-harden Bitcoin - Recent updates to BIP 360 + breakdown of the leading hash-based signatures schemes for Bitcoin (SHRINCS + SHRIMPS) - Why we may actually get consensus around a stateful scheme for Bitcoin - Comparisons of hash-based signatures vs Lattice and Isogeny-based schemes - Assessing the risks of both waiting too long and acting too fast (and why quantum is a better threat to be facing than a potential classical attack) This episode of Bitcoin Rails is brought to you by my NEW sponsors: - LayerTwo Labs LayerTwo Labs — developing research, software, and technologies for scaling Bitcoin via the integration of Drivechains (BIP 300/301) - Hashi on Sui — a primitive for executing Bitcoin Defi transactions, without having to trust a federated bridge or other centralized entity - BitBox BitBox — an open-source Bitcoin-only hardware wallet, with smooth UX and no compromises on security. Check out Bitbox [dot] swiss and use code BITCOINRAILS to get a discount TIMESTAMPS: 00:00 Intro 02:18 Ethan’s Quantum Wakeup 05:18 How Blockstream Enters Post Quantum 09:25 BIP 360 Explained 12:11 How Bitcoin Transitions to PQ 17:35 Choosing Post Quantum Signatures 23:20 How Blockstream Created SHRINCS 27:22 Signature Budgets Importance Explained 41:13 What are SHRIMPS? 44:51 SHRIMPS vs SHRINCS 47:48 Why SLH-DSA Alone Won’t Cut It 49:24 Is a SHRIMPS + SHRINCS BIP Coming? 51:51 Blockstream’s Big Plans for Liquid 59:04 Quantum Readiness Roadmap 01:02:22 Importance of a PQ Recovery Plan 01:05:35 How Long Would a PQ Migration Take 01:11:17 Quantum Watchlist Recommendations](https://image.24vids.com/tw-2051672209454756108/amplify_video_thumb/2051671562672082952/img/GYI9mVH4-kcDz2Gz.jpg)
