[EPIC]: End-to-end encrypted group messages

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难度
5/5
预计耗时
一周以上
新手友好度
25/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
活跃
技术栈
dart, flutter

调研方向

Read the design sub-issue first and comment there before writing code. The starting point named here is mobile/lib/services/sqlite_signal_store.dart, which implements SenderKeyStore and defines the signal_sender_keys table; review it alongside the existing 1:1 Signal session flow. Done means the server relays encrypted group payloads and sender-key distribution, while the app encrypts and decrypts with GroupCipher and rotates keys when membership changes.

由索引模型根据 Issue 内容生成。

描述

area: e2ee difficulty: hard enhancement

Goal

Group messages are currently sent as plaintext envelopes (protected in transit by TLS, but readable by the server). Encrypt them end to end with Signal sender keys, so the server only relays ciphertext.

Starting point

  • The app's Signal store already implements SenderKeyStore (mobile/lib/services/sqlite_signal_store.dart), with a signal_sender_keys table.
  • 1:1 Signal sessions already exist, and are the usual way to deliver sender keys to each member.

Steps (sub-issues)

  1. Design note: the distribution and rotation rules.
  2. Server: route sender-key distribution messages and encrypted group payloads.
  3. App: encrypt and decrypt with GroupCipher, distribute keys, rotate on membership changes.

Please read the design sub-issue first and comment there before writing code.

主要语言
Dart
星标
9
派生
5
平均合并
49 分钟
30 天内合并 PR
34

环境准备

  • 提供 Dockerfile 或 Docker Compose 文件
  • 没有 Pull Request 模板
  • 没有贡献指南

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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