Keystroke biometrics in the encrypted domain: a first study on search suggestion functions of web search engines. - Nicholas Whiskerd; Nicklas Körtge; Kris Jürgens; Kevin Lamshöft; Salatiel Ezennaya-Gomez; Claus Vielhauer; Jana Dittmann; Mario Hildebrandt (EURASIP J. Inf. Secur., 2020)