9 lines
446 B
Markdown
9 lines
446 B
Markdown
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# Transport security uses Noise, not TLS
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We secure the session with the Noise protocol (an `XX` handshake) using each
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device's long-term identity key, rather than mutual TLS with per-device certs.
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Noise avoids a CA/cert machinery on a peer-to-peer LAN, maps cleanly onto the
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SAS pairing flow, and is light enough for the Odin daemon and Android
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(Conscrypt). The pinned trust record and the session key are the *same* key,
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simplifying the model.
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