Osmium v2.0.1 🛡️

The first public release. Fully offline, privacy-first TOTP authenticator for Android.

首个正式发布版本。完全离线、隐私优先的 Android TOTP 身份验证器。

Features 功能

🔒 Zero network — no INTERNET permission at all. All data stays on-device, encrypted with the Android Keystore (AES-256-GCM), hardware-backed.
零网络权限——所有数据只在本机，Android Keystore 硬件加密（AES-256-GCM）。
🔑 Three-way gate — every app open (optional) requires fingerprint / system credential / Osmium PIN. Toggling sensitive settings also requires verification.
三重门禁——每次打开应用（可选）需指纹 / 系统密码 / Osmium PIN，修改敏感设置同样需要验证。
💣 Self-destruct — a destruct PIN or N failed attempts (configurable 3/5/10) wipes the master key and all data irreversibly. The destruct PIN works at every PIN prompt.
自毁机制——自毁 PIN 或连续 N 次验证失败（3/5/10 可设）即销毁主密钥与全部数据，不可恢复。自毁 PIN 在所有 PIN 输入处生效。
📷 Screenshot toggle — blocked by default (FLAG_SECURE); can be enabled after identity verification.
截屏开关——默认禁止（FLAG_SECURE），验证身份后可开启。
🔄 Share & restore — export/import encrypted vaults (password-protected), or share a single account as an otpauth:// QR code after verification.
分享与恢复——密码加密的保险库导入导出；验证后可生成单个账户的 otpauth:// 二维码供扫码添加。
🛡️ Anti-tamper — signature self-check at startup; the app refuses to run if repackaged.
反篡改——启动时校验 APK 签名，被重打包即拒绝运行并退出。
🎨 Material 3 — dynamic color, 7 preset themes removed for stock feel, full dark mode, English / 简体中文.
Material 3 设计——动态取色、完整深色模式、中英双语。
📱 Edge-to-edge + swipe-back — smooth gesture navigation, 90/120Hz friendly.
全面屏适配 + 跟手滑动返回。

Notes 说明

Code is fully open source (Apache-style usage; see repo). The release APK is built with R8 minification + resource shrinking and signed with a fixed release key.
代码完全开源；发布包启用 R8 代码混淆与资源收缩，并使用固定发布密钥签名。
APK is side-loaded from GitHub (not on Google Play).
APK 为 GitHub 侧载安装包。

Links 链接

SHA-256 of signing cert: B65BB0131CAA22C45D99EA4E2C3E99B3980EAE0DC5647190F41A2878E6D88412

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Osmium v2.0.1

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