• Smart Contracts
• Various IDs in Medusa
• Demo plan
• Example run command with config
• Sismo

Smart Contracts

Jonathan to start the refactoring of the smart contract

• Style
• Let’s use NatSpec comments
• Solidity Style Guide
• Naming
• snake_case vs. camelCase
• Rename DKGManager —> DKG
• Layout
• DKGFactory creates DKGManagers
• DKGFactory creates an ID
Copy

bytes32 dkgId = keccak256(abi.encode(block.chainid, blockhash(block.number - 1)));

• OracleFactory creates BN128EncryptionOracles
• And other types in the future
• Scope of current “sprint” of work
• No Resharing

Various IDs in Medusa

• Suite ID ⇒ represents the cryptographic curve, the parameters of encryption + different encryption schemes (todo)
• “Request ID + Cipher ID” request id is just a nonce currently
• “Oracle ID” = oracle contract address (+ chain id + “chain name”)
• “Protocol ID” ⇒ unique amongst all the chains, all networks, for a given reencryption request.
• protocol_id = H(dkgID, request_id, suite_id, oracle_id)
• This is passed in gossip messages
• “DKG network ID”
• bytes32 dkgId = keccak256(abi.encode(block.chainid, smart contract address);
• bytes32 dkgId = keccak256(abi.encode(distributed public key));
• PRE-DKG:
• Smart Contract - not a real need
• ID = H(smart contract address + chain id)
• HTTP API -
• ID = H(URL)
• POST-DKG:
• in oracle contract, “refer to this DKG ID” → contract/http api where dkg has ran

Only keep “pre-dkg”

Demo plan

• Go with structural changes until 7th of October
• Then Jonathan works on
• Demo website deployment (automatic updates from github master)
• Deployment of the nodes via kubernetes
• TODO: ask aws accounts
• Nicolas works on the saving/loading file
• FOllowing is “static” and common for all nodes
• only contains oracle address /maybe dkg/
• Following is per node
• give ethereum key via CLI
• DKG share —> THIS IS TO SAVE/LOAD
• ETHEREUM_KEY=…. testnet node run —oracleAddress 0x… —share share.toml

Example run command with config

testnet node run —config config.toml

[oracle.<address>]
dkgID = …

[key]
path = /…/key.ethereum

[[dkg]]
id = …
share = /path/share

[[dkg]]
id = …
share = /…/

Sismo

Sismo ZK-badges potential collab with medusa

• Use sismo badges as authorization for Medusa encrypted data