Towards Enabling Secure Web-Based Cloud Services using Client-Side Encryption. - Martin Johns; Alexandra Dirksen (CCSW, 2020)

LogPicker: Strengthening Certificate Transparency Against Covert Adversaries. - Alexandra Dirksen; David Klein 001; Robert Michael; Tilman Stehr; Konrad Rieck; Martin Johns (Proc. Priv. Enhancing Technol., 2021)

Network Responses to Russia's Invasion of Ukraine in 2022: A Cautionary Tale for Internet Freedom. - Reethika Ramesh; Ram Sundara Raman; Apurva Virkud; Alexandra Dirksen; Armin Huremagic; David Fifield; Dirk Rodenburg; Rod Hynes; Douglas Madory; Roya Ensafi (USENIX Security Symposium, 2023)

Don't Patch the Researcher, Patch the Game: A Systematic Approach for Responsible Research via Federated Ethics Boards. - Alexandra Dirksen; Sebastian Giessler; Hendrik Erz; Martin Johns; Tobias Fiebig (NSPW, 2024)

The Importance of Being Earnest: Shedding Light on Johnny's (False) Sense of Privacy. - Wirawan Agahari; Alexandra Dirksen; Martin Johns; Mark de Reuver; Tobias Fiebig (SP, 2025)