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by CuriousCosmic
731 days ago
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> Use encrypted messaging protocols — iMessage, signal, WhatsApp… Using RCS E2EE is trivial. The way google does it is to simply pack signal protocol messages in the RCS message payload. It works great and it's simple. Key identities are managed with a central identity server (like signal does) of course but that's because it's only supported on Google's jibe platform. This can be trivially resolved by having each carrier who supports E2EE to host a key identity server so that you can lookup keys by phone number (which RCS already uses to point you to the right federated carrier service). All that's missing from RCS having E2EE by default is google having literally anyone else adopt RCS forcing them to properly federate E2EE. |
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