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43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
const { HandshakeStage } = require.main.require("./dto/Packet.js");
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function keyInfoFromRaw(keyInfoRaw) {
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return {
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"KeyDescriptorVersion": keyInfoRaw>>0 & 0b111,
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"KeyType": keyInfoRaw>>3 & 0b1,
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"KeyIndex": keyInfoRaw>>4 & 0b11,
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"Install": keyInfoRaw>>6 & 0b1,
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"KeyACK": keyInfoRaw>>7 & 0b1,
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"KeyMIC": keyInfoRaw>>8 & 0b1,
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"Secure": keyInfoRaw>>9 & 0b1,
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"Error": keyInfoRaw>>10 & 0b1,
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"Request": keyInfoRaw>>11 & 0b1,
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"EncryptedKeyData": keyInfoRaw>>12 & 0b1,
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"SMKMessage": keyInfoRaw>>13 & 0b1,
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};
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}
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const HANDSHAKE_STAGE_KEYINFO = {
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"keys": ["Install", "KeyACK", "KeyMIC", "Secure"],
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"0100": HandshakeStage[1],
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"0010": HandshakeStage[2],
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"1111": HandshakeStage[3],
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"0011": HandshakeStage[4],
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};
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function handshakeStageFromKeyInfo(keyInfo){
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// Extract compare-keys
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let keyData = "";
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for (const key of HANDSHAKE_STAGE_KEYINFO["keys"]) {
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keyData += keyInfo[key].toString();
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}
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// Get and return stage
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return HANDSHAKE_STAGE_KEYINFO[keyData];
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}
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// Specify exports
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module.exports = {
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keyInfoFromRaw,
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handshakeStageFromKeyInfo,
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}; |