KryptEY

KryptEY is a secure, privacy‑focused Android keyboard that implements the Signal Protocol (X3DH + Double Ratchet) directly in the keyboard layer. It enables end-to-end encrypted messaging within any app—without relying on external servers—ensuring that key exchanges and message encryption happen locally, maintaining Signal-level security across platforms.

Features

Implements full Signal Protocol (X3DH & Double Ratchet)
Independent from messenger apps, no integration needed
Uses X25519, SHA‑256/512, AES‑256‑CBC for encryption
Generates public key fingerprints via SHA‑512
No server‑side routing or dependency
Open‑source and actively maintained

Project Samples

Project Activity

See All Activity >

License

GNU General Public License version 3.0 (GPLv3)

Follow KryptEY

KryptEY Web Site

Other Useful Business Software

Veeam Data Platform v13.1 - Get Your Free Trial

Secure by design, portable by default. Recover clean, fast, anywhere. Start a free trial.

Try Veeam Data Platform today. Experience the unified platform that's secure by design, portable by default, and proven to recover clean, fast, and anywhere.

Try it Free

Rate This Project

User Reviews

Be the first to post a review of KryptEY!

Additional Project Details

Operating Systems

Android

Programming Language

Java

Related Categories

Java Keyboards

Registered

2025-07-14

Similar Business Software

Tessera Keyboard

Tessera Keyboard is a 3×3 gesture keyboard for Android inspired by MessagEase. Designed as an alternative to QWERTY layouts, it uses a grid-and-swipe system: tap for common letters and swipe for other characters. Key features include swipe controls for select all, cut, copy, paste, undo, redo,...

See Software
Keyboard Copilot

Keyboard Copilot is an AI-powered keyboard assistant built with Gemini that helps you write better, faster, and smarter anywhere you type. It works directly inside your keyboard, so you can reply on dating apps, write professional emails, and improve social messages without switching apps. The...

See Software
Social Keyboard

AI-driven keyboard, powered by cutting-edge, large language models. With Social Keyboard, you can get translations and message suggestions that are more personal and engaging than ever before! Compatible with most apps that have a messaging component. Translate received messages and output...

See Software
Acti

Acti is the world’s first agentic keyboard; words in, actions out. It does not predict your next word; it takes your next action. Built around the Acti Bar, it turns every text field into an action layer, so you can type your intent anywhere, hold the bar, preview the result, and apply it...

See Software
Phraseboard Keyboard

Phraseboard customizes and categorizes your keyboard with easy-to-access phrases. Add a category and a few common phrases, you can immediately edit, hear and translate the text and then share it on Facebook, Twitter, Instagram or simply send by email, LINE or as SMS. Customize your phrases and...

See Software
Vavus Keyboard

Vavus Keyboard adds dictation and real-time translation to any app on iPhone, Android, and desktop. Type in your language and send in another, dictate to type hands-free, or reverse-translate an incoming message - all without leaving the app you are in, across 200+ languages. It also includes AI...

See Software