Cyph — Encrypted Communication

Cyph, Inc.

About this app

Cyph is a quantum-resistant secure communication tool designed to be friendly for users of any technical skill level. The technology underpinning Cyph — built by former SpaceX engineers, presented at Black Hat and DEF CON, and protected by several US patents — has been rigorously vetted with great success by German pentesting firm Cure53 against a threat model that focuses on nation-state-level attacks.

Staying safe online has never been so easy.

Ratings and reviews

Appears to be a great app. Unfortunately, it requires google play services in order to reliably deliver messages. It's unfortunate seeing as how not every device has it, and not everyone wants it. We have many devices here with and without google play services. Please consider a workaround. Appreciate your work. Thanks.

Nowhere near as stable or mature as the Keybase app. As many people already reported there is no way to register or scan the qr code. Key too long to type by hand, had to electronically copy the clipboard to the phone. Really wanted to like an alternative to Keybase but this app still needs toooo much work....

The app didn't work for me. I used the most private option without registration, and it didn't work. I couldn't establish a connection with another party and no diagnostics were provided, it just stuck forever. We all wait for updates 🙂

What’s new

• Android SDK update
• WebSign optimizations