Columbia University Department of Computer Science 511 CS Building 500 W 120th St New York, NY 10027, USA email@example.com
I am a Ph.D student at Columbia University in the Security and Software Systems groups. My research focuses on usable security. My advisors are Steven M. Bellovin and Jason Nieh.
John S. Koh, "Why Joanie Can Encrypt: Easy Email Encryption with Easy Key Management." EuroSys 2019, Dresden, DE, March 2019. PDF (14 MiB).
John S. Koh, "Mitigating Email Attacks with Usable Email Encryption." HotSec 2017, Vancouver, BC: USENIX Association, 2017. PDF.