Sandi: A system for accountability and applications in direct communication

FB Durak, K Laine, S Langowski… - arXiv preprint arXiv …, 2024 - arxiv.org
We construct a system, Sandi, to bring trust in online communication between parties that
share little or no context. Sandi is based on a unique``somewhat monotone''privacy …

[PDF][PDF] Private Hierarchical Governance for Encrypted Messaging

A Namavari, B Wang, S Menda… - … on Security and …, 2024 - james.grimmelmann.net
The increasing harms caused by hate, harassment, and other forms of abuse online have
motivated major platforms to explore hierarchical governance. The idea is to allow …

NOTRY: Deniable messaging with retroactive avowal

F Wang, S Cohney, R Wahby… - Proceedings on Privacy …, 2024 - petsymposium.org
Modern secure messaging protocols typically aim to provide deniability. Achieving this
requires that convincing cryptographic transcripts can be forged without the involvement of …

Integrating causality in messaging channels

S Chen, M Fischlin - Annual International Conference on the Theory and …, 2024 - Springer
Causal reasoning plays an important role in the comprehension of communication, but it has
been elusive so far how causality should be properly preserved by instant messaging …

sMAC: Sanitizable Access Control with Encrypted Message Moderation

P Jiang, Q Liu, L Zhu - IEEE Transactions on Information …, 2024 - ieeexplore.ieee.org
Access control encryption enables access control on both senders and receivers, and
enhances message sanitization compared with traditionally cryptographic access control …

Group Moderation Under End-to-End Encryption

S Scheffler, J Mayer - Proceedings of the Symposium on Computer …, 2024 - dl.acm.org
Online services are increasingly adopting end-to-end encryption (E2EE), a valuable
safeguard for user data. In an E2EE design, only parties to a communication have access to …

Origo: Proving provenance of sensitive data with constant communication

J Ernstberger, J Lauinger, Y Wu, A Gervais… - Cryptology ePrint …, 2024 - eprint.iacr.org
Abstract Transport Layer Security (TLS) is foundational for safeguarding client-server
communication. However, it does not extend integrity guarantees to third-party verification of …

[PDF][PDF] Adapting to Automated Governance: Unpacking User Perceptions of Bot Moderation in Telegram and Discord Chats

A Zhao, L Wu, CY Hsieh, M Naaman - 2024 - files.osf.io
MOR NAAMAN, Cornell Tech, USA Private communications on messaging platforms pose
unique challenges for moderation works compared to more public-facing social media …