entry-hacksummit-TypoToken

TypoToken

ERC20 token extension allowing recovery it after transfering to wrong address

Installation

1. Install truffle globally with npm install -g truffle
2. Install ganache-cli globally with npm install -g ganache-cli
3. Install local packages with npm install
4. Run ganache in separate terminal scripts/rpc.sh
5. Run tests with npm test

On macOS you also need to install watchman: brew install watchman

How it works

1. Anyone whose destination address contains mistakes can reclaim lost funds
2. Anyone who send tokens to wrong smart contract address can reclaim lost funds

Usage

Just inherit your token from TypoToken and pass argument of possible typos in destination address:

contract MyToken is StandardToken, TypoToken(3) {
    ...
}

Or:

contract MyToken is StandardToken, TypoToken {
    ...
    constructor() public TypoToken(3) {
        ...
    }
    ...
}

Or:

contract MyToken is StandardToken, TypoToken {
    ...
    constructor(uint _maxAllowedTypos) public TypoToken(_maxAllowedTypos) {
        ...
    }
    ...
}