Why Joanie Can Encrypt: Easy Email Encryption with Easy Key Management. - John S. Koh; Steven M. Bellovin; Jason Nieh (EuroSys, 2019)

Protecting Cloud Virtual Machines from Hypervisor and Host Operating System Exploits. - Shih-Wei Li; John S. Koh; Jason Nieh (USENIX Security Symposium, 2019)

Making It Easier to Encrypt Your Emails. - John S. Koh; Steven M. Bellovin; Jason Nieh (login Usenix Mag., 2019)

Encrypted cloud photo storage using Google photos. - John S. Koh; Jason Nieh; Steven M. Bellovin (MobiSys, 2021)

Easy Encryption for Email, Photo, and Other Cloud Services. - John Seunghyun Koh (2021)