Benenson, Z; Lenzini, G; Oliveira, D; Parkin, S; Uebelacker, S; (2015) Maybe Poor Johnny Really Cannot Encrypt: The Case for a Complexity Theory for Usable Security. In: Somayaji, A and Van Oorschot, P and Böhme, R and Mannan, M, (eds.) NSPW '15: Proceedings of the 2015 New Security Paradigms Workshop. (pp. pp. 85-99). Association for Computing Machinery (ACM): New York, NY, USA.