安装包图标

Simple Text Crypt

使用 AES256 加密纯文本
新版本 5.1
The encryption algorithm upgraded from old AES CBC to the new AES GCM.

Key deriving algorithm also upgraded from PBKDF2 to Argon2.

A "Legacy Decrypt" button added so user can decrypt messages that were encrypted
with the older versions.
This app does not claim any permissions, so you can trust that it cannot send
any of your private data to anyone.

Messages produced by this app are secure and, for example, can be
confidently sent over a network. It uses AES in GCM mode with no padding for
encryption. It uses Argon2 and a random Salt to derive a secure key from the
entered passphrase.
This is a very powerful encryption. It also encrypts its settings before storing
them on the device.

However, the app might be vulnerable to some attacks. Although it is secure
enough to stand attacks from non-expert crackers, e.g. normal users,
should not be used for serious data encryption.

Upgrading from 4.x to 5.x

The encryption of the settings is changed. The app should be able to detect the
old settings and upgrade them with the new encryption algorithm. However, it's
a good idea to back-up your passphrase. (Well, it's generally a good idea to
back-up encryption keys and passwords in a secure place).

If the app didn't work after upgrade, uninstall and install it again.

版本

尽管下面提供了 APK 安装包的下载选项,但你应该注意,以这种方式安装将不会收到更新通知,这是一种不太安全的下载方式。 我们建议你安装使用 F-Droid 客户端。

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  • 版本 5.1 (16) 推荐 更新于 2025-09-05

    arm64-v8a armeabi-v7a x86 x86_64

    该版本需要 Android 8.0 及以上版本。

    此安装包由 F-Droid 构建并签名,且保证与此源代码 tarball 保持一致。

    权限
    • com.aidinhut.simpletextcrypt.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下载 APK 1.7 MiB PGP 签名 | 构建日志

  • 版本 4.6 (15) - 更新于 2024-12-17

    该版本需要 Android 4.4 及以上版本。

    此安装包由 F-Droid 构建并签名,且保证与此源代码 tarball 保持一致。

    权限
    • com.aidinhut.simpletextcrypt.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下载 APK 4.7 MiB PGP 签名 | 构建日志

  • 版本 4.5 (14) - 更新于 2023-09-06

    该版本需要 Android 4.0.3 及以上版本。

    此安装包由 F-Droid 构建并签名,且保证与此源代码 tarball 保持一致。

    无权限

    下载 APK 1.4 MiB PGP 签名 | 构建日志