The signal is an encrypted communications application for Android and iOS.It uses end-to-end encryption to secure all communications to other Signal users.Any text, video, or image coming from the Android version of Signal is encrypted before it leaves your phone.
It is the most secured Encrypted messaging app and it was certified by security experts.
I am regularly impressed with the thought and care put into both the security and the usability of this app. It’s my first choice for an encrypted conversation. Bruce Schneier,
Use anything by Open Whisper Systems.Edward Snowden,
With the new Private Contact Discovery Service, signal enables clients to find which of their contacts are enrolled users, yet does not uncover their contacts to the service operator or any gathering that may have compromised the service.
Most of the social app uses an existing social graph such as Login with Facebook and Google. Instead with signal once user signed in it uses the contacts from phone address book and compared to entries in a database on Open Whisper Systems servers to determine which users use Signal.
With this current process if someone hacks the Signal service could potentially modify the code so that it logs user contact discovery requests.
Also Read Are Online Gamers and eSports Fanatics at Risk of Cyber Attacks?
Modern-day Intel chips had a feature called Software Guard Extensions (SGX). SGX enables applications to provide a “protected enclave” that is separated from the host operating system and kernel.
Signal customary SGX relationship to run a protected enclave on the server, the SGX enclave on the server-side would empower a support of performing computations on encrypted client data without learning the content of the data or the result of the computation.
Private contact discovery using SGX is fairly simple at a high level:
Since the enclave bears witness to the software that is running remotely, and since the remote server and OS have zero ability to see into the enclave.They also published source code in Github.
Check it out and let us know what you think! This is a beta technology preview, but we’ll be deploying the service into production and integrating it into clients as we finish testing over the next few months.Says Signal!
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