How Does Message Search Work in End-to-End Encrypted Apps Like WhatsApp?
Asked by
CuriousExplorer92
I'm curious about how searching for messages works in WhatsApp considering all messages are end-to-end encrypted. Since WhatsApp can't see the content on their side, how can they allow searches? I assume sending all messages to the device isn't practical. What's the process here?
Answers
You can use techniques like encrypted indices or order-preserving encryption. This allows searching directly on the server without exposing the data, while still keeping everything private.
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InquiryInquirer: That sounds interesting! I'm working on a project that involves encryption and would love to learn more about implementing efficient search!