Privacy-Preserving Voice Anti-Spoofing Using Secure Multi-Party Computation. - Oubaïda Chouchane; Baptiste Brossier; Jorge Esteban Gamboa Gamboa; Thomas Lardy; Hemlata Tak; Orhan Ermis; Madhu R. Kamble; Jose Patino 001; Nicholas W. D. Evans; Melek Önen; Massimiliano Todisco (Interspeech, 2021)