14. Demystifying Privy’s security model with Asta Li

Tim Beiko runs the all core dev calls at the Ethereum Foundation. In this episode we discuss: -the Ethereum roadmap -the impact of protocol upgrades -blobs -summer of protocols Follow Tim: https://twitter.com/TimBeiko Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 2:05 Tim’s background 7:13 Tim’s experience running all core dev calls at the EF 11:37 Ethereum implementations that are top of mind 14:23 The Ethereum roadmap 17:35 Spinning up a client in “stateless mode” 19:43 Setting priorities in all core dev calls 22:41 Blobs 31:08 How impactful is this protocol upgrade? 34:43 Protocol guild 41:02 Summer of Protocols 44:24 Spiciest Summer of Protocols take 53:14 Follow Tim

Nader is the head of Developer Relations at Avara. On this episode, we discuss: - decentralized social - web3 gaming - DevRel at Avara Follow Nader: https://twitter.com/dabit3 Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 4:00 Nader’s background 7:45 Avara 9:22 Lens 12:06 The fetaverse 12:36 Decentralized social 17:07 What can be on-chain and off-chain in decentralized social 18:15 How Lens works 21:10 Helping devs choose an infrastructure to build on 25:57 What does sufficient decentralization mean to you? 30:46 Decentralization and web3 gaming 33:55 The latency issue with web3 gaming 36:37 Intents 39:12 Data migration 40:57 Axie Infinity 43:09 The Avara acquisition of Family 45:54 Advice for devs entering web3 49:20 Nader’s GitHub 51:10 Follow Nader 51:29 Outro

Hudson is a VP at Polygon Labs, he previously ran the Ethereum all devs calls at the EF. EIP-1 Early days of Ethereum Social consensus Follow Hudson: https://twitter.com/hudsonjameson Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 2:49 Hudson’s background 8:04 EIP 1 11:43 Learnings from running all core dev calls at EF 17:13 How all dev core dev calls have evolved over time 22:46 Looking to the future of Ethereum 30:25 Pros and cons of enshrining things to the protocol 35:17 Being VP of community at Polygon 40:24 How Ethereum has evolved over time 45:50 Follow Hudson! 46:12 Hudson’s cats and Outro

Preston is an Ethereum Core Dev and co-founder at Prysm Labs. Early “ETH 2.0” history and the shift to proof-of-stake Pre-merge anxieties and how Prysm navigated the merge What it’s like to build a consensus client Follow Preston: https://twitter.com/preston_vanloon Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 2:26 Preston’s journey 9:49 Prysm’s beginnings 13:01 The turning point for Prysm 15:16 Prysm V1 18:09 Ethereum speck history 27:05 Client Diversity 32:33 Post merge 37:36 Offchain Labs acquires Prysm 42:10 Preston’s learnings and advice 44:47 How devs can contribute to the space 47:24 Follow Preston 47:53 Outro

Alberto is the co-founder and tech lead of Yield Protocol. In this episode, we talk: The history of lending on Ethereum How defi protocols have evolved Check out Alberto's article: https://hackernoon.com/borrowing-on-ethereum-comparing-architecture-evolution-of-makerdao-yield-aave-compound-and-euler Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Follow Alberto: https://twitter.com/alcueca Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 3:05 Alberto’s background 7:39 DeFi lending lanscape from a high level 13:15 Over collateralization 14:29 DeFi’s target user 17:01 Introduction of the money market concept in 2018 19:32 Compound V2 26:42 Pooled liquidity on Aave V1 31:38 Single and multi collateral Dai 36:20 DeFi summer 39:40 Yield V2 and Aave V2 42:41 Collateral as a token 46:49 Follow Alberto 47:40 Outro

Kevin and Zakk from Gitcoin join the show to discuss: Gitcoin’s overarching mission Designing protocols for public good Modular protocol design When code becomes governable Follow Kevin: https://twitter.com/owocki Follow Zakk: https://twitter.com/0xZakk Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 2:05 Kevin’s background 3:09 Zakk’s background 6:13 Under the hood of Allo 8:24 Learnings from building Allo 9:43 Difference between singleton and factory pattern 11:21 Benefits of using singleton pattern 15:04 Open contribution and Gitcoin’s evolution 19:18 Configuration vs. convention 22:28 The future of Allo 25:04 Allo’s structure for community contribution 28:22 When code becomes governable 34:11 Modularity within the Gitcoin ecosystem 37:30 Underrated tools 38:19 Zakk’s spicy takes 39:03 Kevin’s cooler takes 41:45 Follow Zakk, Kevin, Allo and Gitcoin 42:43 Outro

Miguel is the tech lead at Diva and CEO at Shamir Labs (the organization building Diva). In this episode, we discuss: Today’s staking landscape Challenges with staking Distributed Validator Technology (DVT) Under the hood of Diva Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Follow Miguel: https://twitter.com/pradavc Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 2:47 Miguel’s background 4:47 What problem in Diva solving? 6:51 Today’s liquid staking landscape 9:24 The dangers of increasing centralized staked eth 11:06 Distributed validator technology (DVT) 11:59 Diva 13:52 Cost to run a diva node 17:30 Specifics of how Diva works 25:07 Distributed key generation 26:35 Choosing a cryptographic standard 30:38 Side effects and benefits to working on Diva 32:53 Incentivizing operators 34:30 Diva tokens 35:30 Rebasing alternative 37:40 Closing thoughts 42:38 Follow Miguel and Diva 43:26 Outro

Asta is the co-founder and CTO of Privy. In this episode, we discuss: Embedded wallets How privy works under the hood Shamir secret sharing (and why Privy uses it) Privy security threat models Future of account abstraction Follow Asta: https://twitter.com/asta_li Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 2:48 Privy overview 3:39 Asta’s Background 4:16 Embedded wallets 5:39 How Privy works 9:15 Privy as the bridge between web2 and web3 11:14 How key generation happens within Privy 16:41 Privy experience across devices 21:17 Different levels of security for different apps 23:51 friend.tech security 26:17 Attack concerns 28:52 Attacks on embedded wallets 32:50 Interoperability 38:56 The future of wallets 43:06 Building wallets vs. building autonomous vehicles 45:30 Follow Asta 45:50 Outro

In this episode, Kevin and Chase dive into Vitalik’s article: Should Ethereum be okay with enshrining more things in the protocol? We discuss: Implementing account abstraction into Ethereum protocol Why enshrinement helps reduce gas costs Balancing flexibility and efficiency Benefits of enshrinement Where enshrinement backfires Follow Metropolis: https://twitter.com/0xMetropolis Follow Kevin: https://twitter.com/kevin_weaver Follow Chase: https://twitter.com/chaserchapman Check out https://www.metropolis.space/ Subscribe to Over Abstraction on Spotify and Apple Podcasts https://open.spotify.com/show/1TEKcyg... Timecodes 0:00 Intro 1:44 Enshrinement at a high level 3:21 Protocol minimalism 4:48 Tradeoffs with introducing these standards at the protocol level 7:38 Why enshrinement is cost beneficial 10:31 Community response and responsibility 11:58 Hard forking 14:29 Benefits of enshrinement 17:57 When enshrinement could backfire 19:30 Closing Thoughts 22:03 Outro Vitalik’s Blog Post: https://vitalik.eth.limo/general/2023/09/30/enshrinement.html

This episode is a re-run with Santiago Palladino, who is an engineer at Aztec Network. In this episode, we discuss: ZKPs changing the public and private data paradigms How developers should think about designing with ZKPs War stories from Open Zeppelin ___________________________ Follow Santiago: @smpalladino Follow Metropolis: @0xMetropolis Follow Kevin: @kevin_weaver Follow Chase: @chaserchapman ____________________________________ Check out Metropolis Subscribe to Over Abstraction on YouTube ____________________________________ Timecodes (00:00) - Episode Highlight (00:35) - Intro (00:46) - What to expect from this episode (01:28) - Meet Santiago Palladino from Aztec Network (05:22) - Creating standards at Open Zeppelin (09:12) - Upgradable contracts and standardization (10:26) - Building Aztec (14:54) - Paradigm shifts in zero knowledge proofs (19:38) - Unconstrained development (23:39) - UX of public and private transactions (28:08) - Exciting use cases of zero knowledge proofs (30:36) - Building an ecosystem to enable zero knowledge proofs (34:33) - Trade-offs when building Noir (36:13) - Learning curve for Noir (38:25) - Future vision for zero knowledge (42:20) - What data should be public vs private? (46:45) - Start building ZKP applications (50:31) - Development war stories (56:01) - Connect with Santiago online (56:33) - Ending