Author Archives: Xiangyi Meng

How do end-to-end encryption (E2EE) IM apps implementing push notifications? [duplicate]

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Say WhatsApp and Signal on Android devices, how do they keep the E2EE not be broken?
Some answers claimed that WhatsApp uses VoIP background mode on iOS to make the push notification invoke the app to decrypt the message and send a local n… Continue reading How do end-to-end encryption (E2EE) IM apps implementing push notifications? [duplicate]→