BabelCrypt: The Universal Encryption Layer for Mobile Messaging Applications

摘要: Internet-based mobile messaging applications have become a ubiquitous means of communication, and quickly gained popularity over cellular short messages (SMS). Unfortunately, from security point view, free services do not guarantee the privacy users. For example, providers can record store exchanged indefinitely to collect information about specific Moreover, these be accessed by criminals who gain access social media accounts. In this paper, we introduce BabelCrypt, system that addresses problem automatically retrofitting arbitrary chat with end-to-end encryption. Our works transparently interfacing original client supplied respective service providers. It does require any modification individual applications, nor it knowledge or customization for applications. BabelCrypt is able inject control in-band, using underlying application’s message exchange mechanism, thus supports running arbitrarily complex encryption protocols such as OTR. We successfully used number popular including Facebook Messenger, WhatsApp, Skype. evaluation shows provides while satisfactorily preserving user experience application.