This paper presents Ember, a serverless peer-to-peer messaging system providing end-to-end encrypted communication over a decentralised IPv6 mesh network. Ember operates without central servers, enforces data minimisation through ciphertext-only local storage and time-based message expiration, and prioritises architectural clarity, explicit trust boundaries, and practical deployability on Android. The paper describes the system architecture, cryptographic design, network model, and security properties -- including dynamic testing results demonstrating that no plaintext is recoverable from captured network traffic -- and discusses limitations and future work

翻译：本文提出Ember，一种在去中心化IPv6网状网络上提供端到端加密通信的无服务器点对点消息系统。Ember无需中央服务器即可运行，通过仅存储密文的本地存储和基于时间的消息过期机制实现数据最小化，并优先考虑架构清晰性、明确的信任边界以及在Android平台上的实际可部署性。本文详细阐述了系统架构、密码学设计、网络模型和安全特性——包括动态测试结果证明从捕获的网络流量中无法恢复明文——并讨论了系统局限性与未来研究方向。