Facebook has unveiled the source code of its Android security tool called ” cryptographic API Java library. It will allow app developers to encrypt data on disk in the most resource efficient way, with an easy-to-use programming interface. The tool is based on algorithms from, a common open source encryption system for the web: OpenSSL. The library also provides resources for storing and managing keys to protect against known weaknesses in the Android’s random number generator. It officially supports Android 2.3 and higher (Gingerbread) It will run on 2.2 (Froyo) phones as well.
Source: https://thehackernews.com/2014/02/facebook-releases-conceal-api-for.html