Cryptanalysis of a privacy-preserving behavior-oriented authentication scheme

ePrint Report: Cryptanalysis of a privacy-preserving behavior-oriented authentication scheme

Sigurd Eskeland, Ahmed Fraz Baig

Continuous authentication has been proposed as a complementary security mechanism to password-based authentication for computer devices that are handled directly by humans, such as smart phones. Continuous authentication has some privacy issues as certain user features and actions are revealed to the authentication server, which is not assumed to be trusted. Wei et al. proposed in 2021 a privacy-preserving protocol for behavioral authentication that utilizes homomorphic …

authentication cryptanalysis eprint report privacy