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README.md
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# cloudnote
```
☁️ CloudNote - 端到端加密云笔记客户端
====================================
一个注重隐私保护的桌面云笔记应用程序，采用 AES-256-GCM + X25519
椭圆曲线加密，实现真正的端到端加密。服务器仅存储加密数据，
无法解密用户笔记内容。
✨ 核心特性
-----------
✓ 端到端加密 - 笔记在本地加密后上传，服务器永不见明文
✓ 混合加密体系 - X25519密钥交换 + AES-256-GCM对称加密
✓ 灵活密钥管理 - 支持全局密钥/单文件密钥/密码保护三种模式
✓ 双因素保护 - 可同时使用密码+单独密钥文件保护敏感笔记
✓ 零知识架构 - 服务器不存储任何解密密钥
✓ 跨平台支持 - Windows/Linux/macOS
🔐 加密算法
-----------
- 密钥交换: X25519 (椭圆曲线Diffie-Hellman)
- 对称加密: AES-256-GCM (认证加密)
- 非对称加密: RSA-2048 (可选)
- 密钥派生: PBKDF2 (100,000次迭代)
🛠️ 技术栈
-----------
- 语言: Python 3.8+
- GUI框架: tkinter
- 加密库: cryptography
- 网络请求: requests
🛡️ 安全原则
-----------
1. 信任无需要 - 服务器默认不可信
2. 密钥属用户 - 所有密钥仅存在于客户端
3. 加密在本地 - 明文永不离开用户设备
4. 开源可验证 - 代码完全开源，接受安全审计
📄 许可证
---------
Apache License 2.0
👤 作者
-------
dvsxt
🔗 仓库地址
-----------
https://gitcode.com/dvsxt/cloudnote
## 🎵 致音乐爱好者
> *写笔记时想听点音乐？试试我的另一个项目——*
### 🔊 ap_ds · 轻量级 Python 音频革命
**2.5MB** 终结 FFmpeg **160MB** 的臃肿时代
- 🎵 支持 MP3 / FLAC / OGG / WAV
- ⚡ 非阻塞播放，完美适配 GUI 应用
- 📦 零依赖，纯 Python 调用
- 🔒 v3.0 LTS 长期支持，永久免费
```bash
pip install ap_ds
```
```python
from ap_ds import AudioLibrary
lib = AudioLibrary()
lib.play_from_file("灵感配乐.mp3") # 边写笔记边听歌
```
👉 [了解 ap_ds 详情](https://gitcode.com/dvsxt/ap_ds)
*同一作者出品，同样坚持：轻量、安全、纯粹。*
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
☁️ CloudNote v1.0
端到端加密云笔记
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📦 作者: dvsxt
📄 许可证: Apache 2.0
🔗 https://gitcode.com/dvsxt/cloudnote
🎵 推荐我的项目: ap_ds
2.5MB 极简音频播放库
https://gitcode.com/dvsxt/ap_ds
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
```