Keystroke biometrics in the encrypted domain: a first study on search suggestion functions of web search engines

• Published in: EURASIP Journal on Information Security Vol. 2020; no. 1; pp. 1 - 16
• Main Authors: Whiskerd, Nicholas, Körtge, Nicklas, Jürgens, Kris, Lamshöft, Kevin, Ezennaya-Gomez, Salatiel, Vielhauer, Claus, Dittmann, Jana, Hildebrandt, Mario
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 21.02.2020; Springer Nature B.V; SpringerOpen
• Subjects: Biometric Authentication on Mobile Devices; Biometrics; Cell phones; Communications Engineering; Communications traffic; Electronic devices; Encrypted domain; Engineering; Euclidean geometry; Experiments; Keystroke dynamics; Linux; Networks; Privacy; Quality assurance; Search engines; Security Science and Technology; Signal,Image and Speech Processing; Smartphones; Systems and Data Security; Virtual environments; Wireless networks; Biometrics; Search engines; Encrypted domain; Keystroke dynamics

A feature of search engines is prediction and suggestion to complete or extend input query phrases, i.e. search suggestion functions (SSF). Given the immediate temporal nature of this functionality, alongside the character submitted to trigger each suggestion, adequate data is provided to derive key...