60 lines
1.7 KiB
JavaScript
60 lines
1.7 KiB
JavaScript
"use strict";
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import { once } from 'events';
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import log from '../io/NamespacedLog.mjs'; const l = log("rekey");
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import jpake from 'jpake';
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export default async function rekey(connection, secret_join) {
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// 0: Setup jpake
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let jpake_inst = new jpake.JPake(secret_join);
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// 1: Round 1
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connection.send("rekey", { round: 1, content: jpake_inst.GetRound1Message() });
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// 2: Round 2
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const their_round1 = (await once(connection, "message-rekey"))[0];
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l.debug(`THEIR_ROUND1`, their_round1);
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if(typeof their_round1 !== "object"
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|| their_round1.round !== 1
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|| typeof their_round1.content !== "string")
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throw new Error(`Error: Received invalid round 1 from peer`);
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l.debug(`REKEY GOT ROUND 1`);
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const our_round2 = jpake_inst.GetRound2Message(their_round1.content);
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if(typeof our_round2 !== "string") throw new Error(`Error: Failed to compute rekey round 2`);
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connection.send("rekey", { round: 2, content: our_round2 });
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// 3: Compute new shared key
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const their_round2 = (await once(connection, "message-rekey"))[0];
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if(typeof their_round2 !== "object"
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|| their_round2.round !== 2
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|| typeof their_round2.content !== "string")
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throw new Error(`Error: Received invalid round 2 from peer`);
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l.debug(`REKEY GOT ROUND 2`);
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const new_shared_key = jpake_inst.ComputeSharedKey(their_round2.content);
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if(typeof new_shared_key !== "string")
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throw new Error(`Error: Failed to compute shared key`);
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l.debug(`REKEY COMPLETE`);
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return Buffer.from(new_shared_key, "hex");
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// let data_bytes = response[0].toString("base64");
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//
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// const cert_theirs = decrypt(secret_join, data_bytes.toString("base64"));
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// if(cert_theirs === null) {
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// socket.destroy();
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// return null;
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// }
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// console.log(`STARTTLS cert_theirs`, cert_theirs);
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}
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