Secure Communication in Dolphin: Integrating Trusted Execution Environments for Enhanced Caller Privacy
Rathu I. P. B. B. Siriwardana, Yu Shen, Stefanie Roos · 2023
Censorship remains a critical global issue, with authorities frequently restricting internet access to control information dissemination. Dolphin has enabled data transmission via cellular voice channels during internet shutdowns but raises privacy concerns due to its reliance on the callee's trustworthiness.