Random.sol

/**
    @notice Generate random number from sig
    @param _sigseed Sign hash for creation random number
    @param _min Minimal random number
    @param _max Maximal random number
    @return random number
    */
    function generateRnd(bytes _sigseed, uint _min, uint _max) public pure returns(uint) {
        require(_max < 2**128);
        return uint256(keccak256(_sigseed)) % (_max.sub(_min).add(1)).add(_min);
    }
}