adex-protocol-eth

The Ethereum implementation of the AdEx Protocol.

This replaces adex-core.

This repository implements OUTPACE (off-chain unidirectional trustless payment channel) and a gas abstraction layer called AdEx Identity.

Please note

Every channel will eventually expire (after validUntil), allowing the non-withdrawn portion of the initial deposit to be received back by whoever opened the channel.
Channels can be created with any ERC20 token; if the underlying token of a channel is insecure or malicious, that also compromises the channel as well; this is out of scope of this contract, since this is a fundamental issue with any system that uses ERC20's; needless to say, the user needs to be aware of what token they're using/earning
For more details on how OUTPACE channels work, please read the specs: AdEx Protocol and OUTPACE.

Testing

First, run ganache-cli in a separate terminal

truffle build # This is important cause js/IdentityProxyDeploy uses artifacts from there
npm test

Deployment

The contract AdExCore from version v3.1.0, compiled with solc v0.5.6 is deployed here:

An Identity, initialized with no privileges, to be used as a basis for IdentityProxy:

An IdentityFactory, set up with the AdEx relayer:

And the Registry (now obsolete, no longer used):

v4.1

All contracts here were compiled with solc v0.5.13.

The Identity, initialized with no privileges, to be used as a basis for IdentityProxy:

An IdentityFactory, set up with the AdEx relayer:

And the Staking:

Mainnet (ADX token and the AdEx multisig as slasher): https://etherscan.io/address/0x46ad2d37ceaee1e82b70b867e674b903a4b4ca32
Goerli (TST token and creator as a slasher): https://goerli.etherscan.io/address/0x46ad2d37ceaee1e82b70b867e674b903a4b4ca32

Deployment strategy

The full deploy processis as follows

Deploy AdExCore
Deploy an IdentityFactory
Deploy a single Identity, with no owners and no registry
Deploy a Staking

Verifying on etherscan

truffle compile
cat build/contracts/AdExCore.json | jq '.bytecode' # this is the bytecode you have to deploy
./scripts/bundle.sh contracts/AdExCore.sol # this will output a bundled .sol code

Gas usage, from the tests

Measured with solc v0.5.6, commit d80fa80424ef7b8932399424f8d919d67b135a30

channelOpen: 69961
channelWithdrawExpired: 70470
channelWithdraw: 137117
execute: 89900
execRoutines: 114440
channelOpen, through execute: 115086

ENS

This is not a part of the adex-protocol-eth source code, but it may be useful for anyone building on top of adex-protocol-eth who wishes to integrate with ENS.

ENS Contract mainnet address: 0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e
ENS PublicResolve mainnet address: 0x226159d592E2b063810a10Ebf6dcbADA94Ed68b8
adex.eth node hash: 0x4e4e818e9467df5c5d1f8c399b11acc73ea24ad69e9c8e1ba6e5784a302c47d4
adex.eth subdomain registrar (adex.eth controller), compiled with solc v0.5.6: 0x7bc082552b1a195813ddb500600ce2b544d579cb

Audits

G0 Group: all issues discovered were of Low severity, and all were resolved
Sigma Prime: 4 issues discovered with "Informational" severity, all resolved
G0 Group, Staking contract: all issues discovered were resolved

Credits

@BrendanChou for SafeERC20: https://gist.github.com/BrendanChou/88a2eeb80947ff00bcf58ffdafeaeb61
@decanus for SignatureValidator
@ConnextProject for merkletree.js

About

Ethereum implementation of the AdEx protocol: payment channels + Identity

https://www.adex.network

MIT License

Languages

Language:JavaScript 63.1%Language:Solidity 35.6%Language:Shell 1.3%