Code-Based Cryptography 7th International Workshop, CBC 2019, Darmstadt, Germany, May 18-19, 2019, Revised Selected Papers - Baldi, Marco; Baldi, Marco; Persichetti, Edoardo; Persichetti, Edoardo; Santini, Paolo; Santini, Paolo (Springer International Publishing : Imprint: Springer, 2019)