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Virgil E3Kit Android

Build Status GitHub license API Reference

Introduction | Benefits | Features | Installation | Resources | Samples | License | Support


Virgil Security provides Virgil E3Kit - an open-source client-side framework that allows developers to add end-to-end encryption to their messaging applications, file sharing programs, and other digital communication products in just a few simple steps to become HIPAA and GDPR compliant and more.


  • Easy to setup and integrate into new or existing projects
  • Compatible with any CPaaS provider, including Nexmo, Firebase, Twilio, PubNub and etc.
  • Strong secret keys storage, integration with Keychain
  • Provides GDPR and HIPAA compliance
  • Immune to quantum computers attacks


  • Strong one-to-one and group encryption
  • Files and stream end-to-end encryption
  • Data signature and verification as part of the encrypt and decrypt functions
  • Recoverable private encryption keys
  • Access to encrypted data from multiple user devices
  • Perfect forward secrecy with the Double Ratchet algorithm
  • Encryption for unregistered users
  • Post-quantum algorithms support: Round5 (encryption), Falcon (signature)


Navigate to Developer Documentation to install and initialize Virgil E3Kit.



You can find the code samples for Java and Kotlin here:

Sample type
Android Java
Android Kotlin
Android Java Firebase
Android Kotlin Firebase
Android Kotlin Back4App
Android Kotlin Nexmo

You can run the samples to see how to initialize the SDK, register users and encrypt messages using E3Kit.


This library is released under the 3-clause BSD License.


Our developer support team is here to help you. Find out more information on our Help Center.

You can find us on Twitter or send us email

Also, get extra help from our support team on Slack.