Ruiz, Rodrigo, and Rogério Winter. “Lazarus: Data Leakage With PGP and Resurrection of the Revoked User”. Journal of Cyber Security and Mobility 5, no. 2 (November 19, 2016): 1–14. Accessed June 20, 2026. https://journals.riverpublishers.com/index.php/JCSANDM/article/view/5189.