This paper proposes the use of error correcting codes as class representations to improve robustness for adversarial attacks. The main idea of error correcting output codes is well-known, but this is the paper that shows that such ideas can be used for adversarial robustness. The paper shows very promising results especially in the rebuttal for CIFAR10. The distance bound is equivalent to Plotkin as the reviewer pointed out so this should be fixed in the paper.