# Private Group Messaging

DevFeed: [Private Group Messaging](<https://devfeed.tech/articles/private-group-messaging-1810.md>)

Original publisher: [Read original article](<https://signal.org/blog/private-groups/>)

Published: 2014-05-05T00:00:00Z

Content type: article

Language: en

Sources: [Signal Blog](<https://devfeed.tech/sources/signal-blog.md>)

Topics: [Messaging](<https://devfeed.tech/topics/messaging.md>), [Encryption](<https://devfeed.tech/topics/encryption.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>)

Tags: [feature](<https://devfeed.tech/tags/feature.md>), [messaging](<https://devfeed.tech/tags/messaging.md>), [release](<https://devfeed.tech/tags/release.md>)

## AI overview

The article introduces private group chat in the TextSecure v2 release and explains the protocol requirements for secure group conversations. It discusses maintaining forward secrecy, deniability, asynchronous messaging, and potentially transcript consistency, while summarizing the multi-phase mpOTR approach to group key agreement and authenticated communication.

## Source excerpt

One of the major features we introduced in the TextSecure v2 release was private group chat. We believe that group chat is an important feature for encrypted communications projects, so we wanted to try to summarize some of the existing work in this area, as well as how TextSecure's group chat protocol functions. Read more...