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Paper 2021/424
Security Analysis of SFrame
Takanori Isobe and Ryoma Ito and Kazuhiko Minematsu
Abstract
As people become more and more privacy conscious, the need for end-to-end encryption (E2EE) has become widely recognized. We study the security of SFrame, an E2EE mechanism recently proposed to IETF for video/audio group communications over the Internet. Although a quite recent project, SFrame is going to be adopted by a number of real-world applications. We inspected the original specification of SFrame. We found a critical issue that will lead to an impersonation (forgery) attack by a malicious group member with a practical complexity. We also investigated the several publicly-available SFrame implementations, and confirmed that this issue is present in these implementations.
Metadata
- Available format(s)
- Category
- Cryptographic protocols
- Publication info
- Preprint. MINOR revision.
- Contact author(s)
-
takanori isobe @ ai u-hyogo ac jp
itorym @ nict go jp
k-minematsu @ nec com - History
- 2022-04-26: last of 2 revisions
- 2021-04-06: received
- See all versions
- Short URL
- https://ia.cr/2021/424
- License
-
CC BY