Bayes Security: A Not So Average Metric

arXiv:2011.03396v3 Announce Type: replace
Abstract: Security system designers favor worst-case security metrics, such as those derived from differential privacy (DP), due to the strong guarantees they provide. On the downside, these guarantees result in a high penalty on the system's performance. In this paper, we study Bayes security, a security metric inspired by the cryptographic advantage. Similarly to DP, Bayes security i) is independent of an adversary's prior knowledge, ii) it captures the worst-case scenario for the two most vulnerable …

arxiv case cs.cr designers differential privacy high metric metrics performance privacy result security security metrics study system