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p2p: update frame size #235

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Dec 18, 2020
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p2p: update frame size #235

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2 changes: 1 addition & 1 deletion spec/p2p/peer.md
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Expand Up @@ -51,7 +51,7 @@ It goes as follows:
- get 64 bytes of output from hkdf-sha256
- if we had the smaller ephemeral pubkey, use the first 32 bytes for the key for receiving, the second 32 bytes for sending; else the opposite.
- use a separate nonce for receiving and sending. Both nonces start at 0, and should support the full 96 bit nonce range
- all communications from now on are encrypted in 1024 byte frames,
- all communications from now on are encrypted in 1400 byte frames (plus encoding overhead),
using the respective secret and nonce. Each nonce is incremented by one after each use.
- we now have an encrypted channel, but still need to authenticate
- extract a 32 bytes challenge from merlin transcript with the label "SECRET_CONNECTION_MAC"
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