Betina, L. (ed.), Security, Privacy, and Applied Cryptography Engineering: 11th International Conference, SPACE 2021, Kolkata, India, December 10–13, 2021, Proceedings, 3-21. Cham : Springer STARTPAGE=3;ENDPAGE=21;ISSN=0302-9743;TITLE=Betina, L. (ed.), Security, Privacy, and Applied Cryptography Engineering: 11th International Conference, SPACE 2021, Kolkata, India, December 10–13, 2021, Proceedings