Advances in Secure Messaging and Key Recovery

The field of secure messaging and key recovery is moving towards more decentralized and privacy-preserving solutions. Researchers are exploring new protocols and techniques to enable secure reporting of harmful content, key recovery, and metadata privacy. Notable developments include the introduction of transcript franking, which allows for the secure reporting of conversations, and the design of decentralized key recovery protocols that distribute trust over multiple nodes. These advancements have the potential to significantly improve the security and usability of end-to-end encrypted messaging platforms. Noteworthy papers include: Transcript Franking for Encrypted Messaging, which introduces a new type of protocol for secure reporting of conversations. Towards the ideals of Self-Recovery and Metadata Privacy in Social Vault Recovery, which presents a framework for social key recovery that addresses the tradeoff between memorability and metadata privacy. Kintsugi: Decentralized E2EE Key Recovery, which proposes a decentralized protocol for key recovery that distributes trust over multiple nodes.

Sources

Transcript Franking for Encrypted Messaging

Towards the ideals of Self-Recovery and Metadata Privacy in Social Vault Recovery

Kintsugi: Decentralized E2EE Key Recovery

Cryptanalysis of LC-MUME: A Lightweight Certificateless Multi-User Matchmaking Encryption for Mobile Devices

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