20190815 - ETH2.0 Implementers Call 23.md

20190815 - Eth 2.0 implementers call #23

ethereum/eth2.0-pm#68

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Nimbus

Team in Berlin.

New joiner:

• Dmitry
  • Libp2p, networking

Core:

• SSZ implemented

Eth1 Deposits:

• Continued on the equivalent to Web3.py/Web3.js started in January
• Can interact/interop with ETH1 deposit contract from any web3-enabled Eth1 client.

Eth1 Deposits:

• Bootstrapping Eth2 genesis from Eth1 via Ganache: https://github.com/status-im/thundercloud

Networking:

• Implemented the networking spec
• libp2p works again on Windows. Can be tested with testnet1

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Testing

• BLS tests were not included by mistakes

• 0.8.3 --> include tests, typo fixes.

  • Target: Monday or Tuesday

• will be interop target

• Vyper compiler bug in deposit contract

  • will add a checksum to precompute the expected SSZ root
  • not a target for interop

• Mid-Sept fixes planned:

  • remove light clients machinery that adds substantial hashing overhead
    • active validator indices for example
  • maybe remove transfers

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Client updates

Yeeth:

• Will use Lodestar for part of validator client.

Harmony:

• Validator API finished
• Eth1 integration via gRPC, PR open
• P2P daemon
• Noise implementation done
• Phase 0 JVM libp2p implementation hopefully closed to finish and ready for interop
• started on 0.8.2 impl
  • lots of testing to be done
  • started on QA, fuzzer and property testing
    • beacon chain fuzzer for start but maybe network stack as well

Trinity (HWW)

• Focus on interop requirements
  • py-libp2p module:
    • SecIO for interop
• Beacon-chain receive (?) server to handle (...)
• Disc v5 for Trinity Eth 1 client -> exploring for usage in Eth2

Artemis (Shahan)

• Intro Shahan
• SSZ
• LibP2P, noise
• state tests
• Use Rust-libp2p into Artemis

Lighthouse (Adrian)

• work on database:
  • probably be using 2 databases a hot and a cold one
• networking stack update
• improving sync algorithm
• working on BLS standardization
• Eth1 deposit contract

Prysm (Terence)

• fork choice
• optimizations
• BLS improvement for verifications and aggregate signature with significant speedup

Lodestar

• New joiner
  • focus on Assemblyscript and speedup crypto primitives
• monorepo
• spec tests
• SSZ types published on NPM
• beacon chain config on NPM
• partway through disc v5
• target: fix libp2p protocol

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Survey: Road to interop

Will be organized by Proto and Whiteblocks

Danny: Raul wanted to do something similar from a libp2p POV

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Networking

Disc v5 (Felix)

• https://github.com/ethereum/devp2p/blob/master/discv5/discv5.md
• Audit of the spec by LeastAuthority a week ago
  • So far focused on Kademlia
  • still 1-2 weeks
  • Auditors require more explanation from Felix (?) for the topics
• Felix's implementation: same point as the spec
  • Adrian: interested in interop tests

Libp2p (Matt)

• Bounty project will be kicked off at Eth Berlin https://github.com/libp2p/devgrants

Whiteblocks (Zak)

• Webinar in a couple of hours
  • Target audience: everybody
  • https://zoom.us/webinar/register/WN_GjWAB_7qQUyN67gIQ43YDg

Q (Shahan): Where to discuss about handshakes for discv5 (while Noise already has handshakes) --> libp2p repo

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Networking load

https://hackmd.io/ZCOiGwjLRy6il6yuAnF05w - Block size and attestations

Mikhail Research in aggregation strategy -> agg strat doesn't seem to be a bottleneck but attestations could.

For interop: will use naive strategy

https://hackmd.io/iHDZAzwlRE2uwv3hsB-9Gw - Scalability and BFT in context of p2p

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Research updates

Vitalik:

• [Merged] Modified Merkle proof verifications (use generalized indices) ethereum/consensus-specs#1186
• [Pending] Persistent committee root (?)
• [Pending] Changed in light clients syncing algorithm

==> Enough to start building light clients but not enough until phase 1 (?)

Justin Drake:

• 5 ETH/1000 DAI bounties for changing the spec in a substantive way: ethereum/consensus-specs#1345
• new BLS standard, plan to integrate it in dev, master in the future
  • new constant time hash function
  • rest is minor changes to BLS
  • not fully ratified yet
  • will not impact interop
  • Eth will be the first launch to use the new BLS
• Related stadnardiztion:
  • checksums, ID wallets
• Light clients design -> Awesome
• Quantum apocalypse insurance
  • Secrets associated with validator deposits via lamport signature which is quantum secure.
  • Can be done without any substantive change to phase 0
  • Optional

Will Vuellaneva (Ewasm)

• Benchmarking SSZ in a simple transfers ExecEnv vs RLP

Musab Alturki (KEVM - Formal Verif)

• Phase 0 almost done
  • need to update to 0.8.2
  • then pass testing

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Interop locking:

• Waves:
  • Q&A tomorrow on Telegram
  • catered
  • 30 people + 10 people WASM

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Collectible for participating in testnet and participating in Eth2 launch

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Fuzzing (Adrian)

(?) fuzzer Worked for SSZ

Can't update on differential fuzzer --> Justin: gone quiet --> Proto: primitives are there.