![]() Then the server needs to re-encrypt the data in order to pass it to each recipient. With most of these systems, the data is securely encrypted between your device and the server. However, group chats require the data to be encrypted separately to each user. If you are strictly doing direct, one-to-one communications, then it's easy to have end-to-end encryption. Second, there's the relaying of the data. TLS is "better than nothing" security, but only slightly better. TLS (or SSL as those of us older folks still call it) has some serious weaknesses. Many of these secure chat services rely on TLS. ![]() Regardless of the choice, there are three main areas where each uses encryption.įirst, there's the data transfer from your computer (or mobile device) to the service. While each has their trade-offs, they all have useful niches. There are many different encrypted chat systems, like WhatsApp, Viber, Jabber, Wickr, and Signal.
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