Before revision:  Using a constructive approach based on duality, we prove that a mechanism that maximizes the worst-case expected revenue among all deterministic dominant-strategy incentive compatible, ex post individually rational mechanisms takes the following form: (1) the bidders submit bids b_i; (2) for each bidder, a linear score s_i=\beta_ib_i-\alpha_i is calculated where \alpha_i, \beta_i are fixed parameters; (3) the object is  awarded to the agent with the highest score, provided it 's nonnegative;
After revision:  Using a constructive approach based on duality, we prove that a mechanism that maximizes the worst-case expected revenue among all deterministic dominant-strategy incentive compatible, ex post individually rational mechanisms is awarded to the agent with the highest score, provided it 's nonnegative;