Hacker Lexicon: What Is the Signal Encryption Protocol?

Minimalist · Nov 29, 2020

Last week, with little fanfare, Google announced a change that could soon make its 2 billion Android users worldwide far harder to surveil: The tech giant says it's rolling out a beta version of its Android messaging app that will now use end-to-end encryption by default. That level of encryption, while limited to one-on-one conversations, is designed to prevent anyone else from eavesdropping—not phone carriers, not intelligence agencies, not a hacker who has taken over the local Wi-Fi router, not even Google itself will have the keys to decrypt and read those billions of messages.

The news isn't just a win for global privacy. It's also a win for one particular encryption system: the Signal protocol, which is well on its way to accounting for a majority of the world's real-time text conversations. As this protocol becomes the de facto standard for encrypted messaging in most major services, it's worth understanding what sets it apart from other forms of end-to-end encrypted messaging.
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https://www.wired.com/story/signal-encryption-protocol-hacker-lexicon/

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Hacker Lexicon: What Is the Signal Encryption Protocol?

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Hacker Lexicon: What Is the Signal Encryption Protocol?

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