| |
End-to-End Encrypted (E2EE) Messaging with Forward Secrecy and Post-Compromise Security
Speaker (s):
Rolf Oppliger
Founder of eSecurity Technologies and
Adjunct Professor, University of Zurich
|
|
Date:
Time:
Venue:
|
|
28 August 2023, Monday
10:00am – 11:00am
School of Computing & Information Systems 1 (SCIS 1)
Level 5, Meeting Room 5-1
Singapore Management University
80 Stamford Road, Singapore 178902
Please register by 24 August 2023.
We look forward to seeing you at this research seminar.
|
|
About the Talk
The evolution of end-to-end encrypted (E2EE) messaging on the Internet has a long and thrilling history. The first solutions for asynchronous messaging (e-mail) date back to the 1990s (e.g., PGP and S/MIME), whereas the first solutions for synchronous or instant messaging appeared in the 2000s (e.g., OTR). Generalizing these techniques and applying them to the centralized architecture of today's Internet messaging services led to the development of the Signal protocol that is omnipresent and marks the state-of-the-art in the field. Most interestingly, its double ratchet mechanism provides what is known as forward secrecy and post-compromise security. In addition to Signal, the protocol is also used in many other widely deployed messengers, including Facebook Messenger, WhatsApp, and Wire. In its basic form, it targets the two-party setting and does not provide an obvious solution for group communications. Such a solution is currently being developed within the IETF Messaging Layer Security (MLS) WG. The goal is to design a Signal-like protocol that meets the security and scalability requirements of potentially very large groups.
About the Speaker
Rolf Oppliger studied computer science, mathematics, and economics at the University of Bern, Switzerland, where he received M.Sc. (1991) and Ph.D. (1993) degrees in computer science. In 1994-95, he was a post-doctoral researcher at the International Computer Science Institute (ICSI) of UC Berkeley, USA. In 1999, he received the venia legendi for computer science from the University of Zurich, Switzerland, where he was appointed adjunct professor in 2007. The focus of his professional activities is on technical information security and privacy. In these areas, he has published numerous books, scientific articles, and papers, regularly participates at conferences and workshops, serves on the editorial board of some leading magazines and journals, and is the editor of the Artech House information security and privacy book series. He’s the founder and owner of eSECURITY Technologies Rolf Oppliger, works for the Swiss National Cyber Security Centre NCSC, and teaches at the University of Zurich. He was a senior member of the ACM and the IEEE, as well as a member of the IEEE Computer Society and the IACR. He also served as vice-chair of the IFIP TC 11 working group on network security.
|
