AuthStream: An Access Control AVS

AuthStream is an open-source dynamic access control framework built using Othentic's AVS framework. It is intended as a development tool to simplify the implementation of complex and nuanced access control for protocols, maintaining trustlessness and verifiability.

Using our framework

Exposing the simplest interface as possible for the user, see contracts/src/Counter.sol as an example of how to integrate with AuthStream's security infrastructure. It is as simple as implementing this single interface IWhitelistAvs and our framework will do the rest. Here is the interface for visibility:

Demo

Here is a simple demo for a protocol like PermiSwap, a permissioned swap protocol which only lets whitelisted users swap with the coveted ToTheMoonCoin. Users can get whitelisted via having a sufficient balance of another token on sepolia in this example. For those not whitelisted, they are gated from this swap and stuck only trading Rug Coin.

Link to Demo video

AuthStream.Demo.Video.mp4

Instructions for Setup

Prerequisites

• Access to Othentic GitHub repositories & NPM
• Accounts:
  • Deployer account:
    • At least 1.5 holETH (Faucet)
    • At least 5 Amoy MATIC (Faucet)
  • Operator account x 3 (see [Optional] Utility script for creating an account):
    • At least 0.02 holETH on Holesky
  • ERC-20 token address
• Software:
  • Foundry
  • Node 18 installed via NVM (https://github.com/nvm-sh/nvm/blob/master/README.md)
  • Docker & docker-compose (see Docker website for instructions based on your OS)
  • SSH key on GitHub (https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent)

Othentic CLI

At the start of the setup, update your Othentic CLI:

npm i -g @othentic/othentic-cli

For the deployment, set the Deployer account’s private key in the .env file:

Environment File

PRIVATE_KEY=...

Contracts Deployment

To deploy the AVS’s on-chain components, run the following command:

othentic-cli network deploy \
    --erc20 0x73967c6a0904aA032C103b4104747E88c566B1A2 \
    --l1-initial-deposit 1000000000000000000 \
    --l2-initial-deposit 2000000000000000000

Operators Setup

Register 3 operators with 0.01 stETH:

othentic-cli operator register
othentic-cli operator deposit --strategy stETH --shares 0.01

If you don’t have the necessary funds in stETH:

othentic-cli operator deposit --strategy stETH --shares 0.01 --convert 0.012

Running an AVS

Configuration

Print your contract addresses in a .env format:

othentic-cli network contracts

Fill in your .env file with the following variables:

OTHENTIC_REGISTRY_ADDRESS=0x41994741eD86Ec48e9578d0f64839E3F546466Fa
AVS_GOVERNANCE_ADDRESS=
ATTESTATION_CENTER_ADDRESS=

PRIVATE_KEY_PERFORMER=
PRIVATE_KEY_AGGREGATOR=
PRIVATE_KEY_ATTESTER1=
PRIVATE_KEY_ATTESTER2=
PRIVATE_KEY_ATTESTER3=

PINATA_API_KEY=7824585a98fe36414d68
PINATA_SECRET_API_KEY=41a53a837879721969e73008d91180df30dbc66097c7f75f08cd5489176b43ea
IPFS_HOST=https://othentic.mypinata.cloud/ipfs/

OTHENTIC_BOOTSTRAP_ID=12D3KooWBNFG1QjuF3UKAKvqhdXcxh9iBmj88cM5eU2EK5Pa91KB
OTHENTIC_BOOTSTRAP_SEED=97a64de0fb18532d4ce56fb35b730aedec993032b533f783b04c9175d465d9bf

Running the Network

The docker-compose configuration sets up the following:

• Aggregator node
• 3 Attester nodes
• AVS WebAPI endpoint
• TaskPerformer endpoint

Run

docker-compose build --no-cache

Executing a Task

To execute a task, send a POST request to the Task Performer service:

curl -X POST http://localhost:4003/task/execute

Contract Setup

forge script script/Swap.s.sol --broadcast --rpc-url https://indulgent-polished-cloud.matic-amoy.quiknode.pro/442e133ab1add6c7acfadf6280f04bc8d2f0d65e --private-key $PRIVATE_KEY --verify --etherscan-api-key=$ETHERSCAN_API_KEY --verifier-url https://api-amoy.polygonscan.com/api/

Configure authentication methods with the setWhitelistMethod function:

forge script script/Counter.s.sol:CounterScript --sig="setWhitelistMethod()" --broadcast --rpc-url=https://rpc-amoy.polygon.technology/  --private-key $PRIVATE_KEY 

See the scripts folder for more methods to call

Demo frontend setup

yarn install
yarn start