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Signal Protocol Explained: End-to-End Encryption for WhatsApp, Signal

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The Signal Protocol provides end-to-end encryption for billions of users on platforms like Signal, WhatsApp, and Google Messages. This ensures only the sender and recipient can read messages, not the company operating the service. The protocol uses a combination of public and private keys, where servers only store public data and facilitate encrypted message delivery. Recent updates since 2023 have incorporated quantum-resistant cryptography to protect against potential future threats.

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Signal Protocol Explained: End-to-End Encryption for WhatsApp, Signal · ShortSingh