Policy contract #3
Description
Rationale
Policy contract is a configuration contract that manages several global policies for every node, e.g. minimum allowed gas price, transaction blacklist. Policy contract can be only written by the consensus, but should be read and applied in runtime by everyone.
Implementation
Policy contract is going to be a pre-deployed Solidity smart contract, which has the following functionality.
- Declare the lowest gas price for a transaction to be allowed in transaction pool;
- Declare a blacklist for some addresses that are not allowed in transaction pool;
- Check and only allow the consensus (governance) to update the configurations and upgrade the contract.