SQLCipher is an open source extension to SQLite that provides transparent 256-bit AES encryption of database files.
An implementation of the SQRL protocol. This library helps to parse, validate and create SQRL messages.
The T2 Encryption Library provides FIPS 140-2 compliant data-at-rest security to Android applications.
A small and simple library for managing trial period in your android app.
Email and password signup is a technology that has not been innovated on in decades. Signup forms are cumbersome and repetitive. When users forget their credentials and fail to sign in, you can lose customers. So, that's why here twitter digits comes in picture.
Windows Azure Active Directory Authentication Library (ADAL) for Android.