Progress in Cryptology – AFRICACRYPT 2019 11th International Conference on Cryptology in Africa, Rabat, Morocco, July 9–11, 2019, Proceedings

Blockchain – ICBC 2019 Second International Conference, Held as Part of the Services Conference Federation, SCF 2019, San Diego, CA, USA, June 25–30, 2019, Proceedings

Information Security and Privacy 24th Australasian Conference, ACISP 2019, Christchurch, New Zealand, July 3–5, 2019, Proceedings

Cyberspace Safety and Security 11th International Symposium, CSS 2019, Guangzhou, China, December 1–3, 2019, Proceedings, Part II