# Vac ACZ @ ethcc week Brussels, 2024 ## Attendees 1. Ramses 2. Ugur 3. Aaryamann ## Events ### 7 July - depin:con - Attendees: Aaryamann - Met Adam from Acurast, a depin network where old phones are upcycled and incentivized to form a decentralized cloud. Any code written in JS can be deployed to these phones, and paid for in their tokens. Interesting to scale/decentralize the waku network. - Met Ian (BD Lead) from Metamask & Linea (Consensys), discussed MM's integration with Waku, not much being done right now, they might use XMTP, since XMTP developed a Metamask "Snap" already. - Met Boris from Subquery, a competitor to the graph, was very interested in using Waku for their protocol, and avid Status user. - Overall, the conversations were good, but the conference itself was mostly a networking event with VCs and founders, not too many developers. ### 8 July - FHE workshop by Fhenix - Attendee: Ramses - Attended the presentation by Nigel Smart on FHE in Blockchain. - Nigel Smart presented the approach used by Zama. Based in threshold validators. - Protocol Labs meetup @ ethcc - ETHcc Talks - Attendee: Ugur Topic: How to securely configure and use Telegram & Twitter From: Pablo Sabbatella from Blockfence / SEAL Summary: Most hacks are reasoned by phishing on Twitter and Telegram. To minimize the security flaws, he explains some checks among the 400 configurations such as secure password, auto download, 2FA, and delegated accounts. Comments: I mentioned our RFC(SGM on Ethereum Creds) and asked him if we can use the Ethereum authenticated messaging app to create trust groups from our friends, and he likes it. It may be one of the usage areas of RFC. - Attendee: Ugur & Ramses Topic: A Gentle Introduction To End To End Encrypted Messaging From: Nick Molnar from XMTP Summary: History of the end-to-end encryption from the primitive server-based solutions to MLS. Comments: Nothing interesting. Just the main idea of MLS. No information about its decentralization. - Attendee: Ugur & Ramses Topic: Ensuring the Sanity of Deployed Smart Contracts From: Matthias Egli from ChainSecurity Summary: Deployed smart contracts need to be secure against the TX ordering, reverts and front running. They build a single file validation automation tool. Within this single file, it ensures the match contract state, documents, and dependencies, bytecode match, and checks the mutables. Here is the repo: https://github.com/ChainSecurity/deployment_validation Comments: It can be useful in the future of the Nescience contracts that get some insight into the security flaws in the deployment phase. - Attendee: Ugur & Ramses Topic: Enough Hacks: A Framework for Building Secure Protocols From: Merlin Egalite from Morpho Labs Summary: Dapps are different than web apps. But it shares some similarities such as features are the attack surfaces. For security, we need to develop a culture that allows each member of the team can raise their concern easily. And the teams need to be open to debate(in a good way). There are several phases from the pre-deployment to the final steps such as bug bounty. Comments: Again, it can be useful to create a secure contract development structure for Nescience. - Attendee: Ugur & Ramses Topic: OAuth 2.0 is Dead (Exploring Next-Gen Access Management) From: Matt Schoch from Narval Summary: Oauth2 does not fit well for dapps since the dapps can require different features for access management problems. GNAP(grant negotiation authentication protocol) offers a good access mechanism protocol for dapps by using oracles, policies, coprocessors, and real-time checks. The protocol engine collects all the information from different identities and then decides which user gets in. Comments: The RFC can benefit GNAP as access management for login users. - Attendee: Ugur & Ramses opic: Anoma: Ethereum’s Intent Machine From: Adrian Brink from Anoma & Namada Summary: The VMs are common. Each VM has its own specific code that the VM can execute. However, it is not enough for composability, instead, the Intent Machine(IM) has a high level of abstraction and the input of the IMs is not code, but the duty. For example, roll ups are great examples for IMs. Building dapps with IMs is easy because the devs only write intents, not the TX or execution trace. Anoma is trying to be an IM on top of the Ethereum. The devs can ask for the cheapest execution then Anoma IM can find then execute the TX. Further information: https://anoma.net/blog/abstract-intent-machines omments: The intent machines are relatively new terms according to the VMs. It obviously helps developers to write code easily and flexibly which are the terms that we want for Nescience as well. ### 9 July - Encryption Day (ZK, MPC, FHE) - Attendee: Ramses and Ugur - Several presentation focusing on the hardware side of research. - Research focusing on the acceleration of FHE. - Levelled HE is gaining weight in front of FHE. - Met with Pedro from Aztec and I asked how Aztec could work with the contract that never deployed the chain, and he answered that unless the senders and receivers agreed on the contract (execution), they don't need to deploy it to the network. - Builder Day Brussels (Metamask) - Web3Social Day (Mask Network) - Discussed with Arush (Huddle) about RLN integration into their relay nodes to handle logins/handshakes ### 10 July - Trust Infrastructure Day by Hyle´ and Aztec (@Aaryamann is speaking) - DePIN day Brussels - Shielding Summit - Panels were mostly high-level and discussing SOTA in provable cryptography, and privacy - Proof Day: Real-World ZKP - Most of the presentations were re-used across different side-events - SP1 seems to be very developer friendly for larger circuits - FHE Summit - Attendee: Ramses - Some of the talks were already delivered in Monday and Tuesday. - FHE and ZKP have attained a high level of maturity when it comes to theory. - Research now focuses on the acceleration and hardware. - From this summit and the past events one infers that research is moving to other primitives such as Witness Encryption or Laconic Cryptography. Similar to FHE a few years ago. - In parallel to hardware improvements, post-quantum seems to gain weight. ### 11 July - EthCC (@Ramses is speaking) - ### 12 July - libp2p day - Web3PrivacyNow Meetup ## Notes per Event ### 7 July - depin:con ### 8 July - FHE workshop by Fhenix - Protocol Labs meetup @ ethcc ### 9 July - Encryption Day (ZK, MPC, FHE) - Builder Day Brussels (Metamask) ### 10 July - Trust Infrastructure Day by Hyle´ and Aztec (@Aaryamann is speaking) - DePIN day Brussels - Shielding Summit - Proof Day: Real-World ZKP ### 11 July - EthCC (@Ramses is speaking) ### 12 July - libp2p day - Web3PrivacyNow Meetup ## Action Points/Follow ups -