Decentralized authoritative messaging

摘要

A secure chat client is described that allows users to exchange encrypted communications via secure chat rooms, as well as one-to-one communications. In particular, the secure chat client allows users to create, configure, and manage secure chat rooms. Furthermore, the secure chat client provides users with the ability to recover secure messages when they obtain a new device or otherwise lose communications.

主权项

1. A system, comprising:
a processor configured to:
receive, from a sender using a sending device, a first encrypted message for a secure chat room;decrypt the first encrypted message;in response to a determination that the decrypted first message does not belong to either of an existing room or an existing group, transmit a request for additional information to the sender;receive an encrypted response from the sender in response to the transmitted request;decrypt the encrypted response;validate the additional information contained in the decrypted response from the sender, wherein the additional information includes a message encryption key for a second encrypted message;retrieve the second encrypted message from a security platform using the additional information provided by sender;decrypt the second encrypted message using the message encryption key received from the sender; andprovide the second decrypted message to the secure chat room; and a memory coupled to the processor and configured to provide the processor with instructions.