Last year, Google added end-to-end encryption to one-to-one RCS chat in the messages app. In the keynote speech of the I / O developer conference held this morning, Google announced that group chat has also realized end-to-end encryption.
Most forms of communication are not encrypted end-to-end, which means that other people can intercept and read the information except the sender and recipient. With end-to-end encryption, even Google can't see what you're saying. This feature is not detailed in the keynote speech, but we can assume that it works similar to the 1-to-1 version.
All parties need to use RCS connection instead of traditional SMS / MMS service. Of course, group chat needs to use Google messages. Now it is more likely that Samsung has begun to use information as the default information application on its latest mobile phone. It is clear that 500 million people are using RCS, and Google Sameer Samat satirizes [Apple] with this fact( https://apple.pvxt.net/c/1251234/435400/7639?u=https%3A%2F%2Fwww.apple.com%2Fcn%2Fmusic%2F ) "We want every mobile operating system to get this message and upgrade to RCS," he said
Chat logs with end-to-end functionality enabled include a small lock icon next to the send button. I don't know when this privacy confirmation icon will appear in group chat. All we get is a vague promise to enable encryption in group chat later this year.