massive security update

This commit is contained in:
olcxja 2026-08-24 19:22:28 +02:00
commit 1593a3a33a
20 changed files with 1121 additions and 339 deletions

View file

@ -3,10 +3,99 @@ let currentVoiceCallId = null;
let currentVoiceCallType = null;
let voiceWsHeartbeat = null;
let voiceActiveUsers = [];
let voiceAesKeyBytes = null;
let voiceAesCryptoKey = null;
let voiceAesKeyBytes = null; // grupowy klucz rozmowy (root) - dystrybuowany hybrydą PQ
let voiceUiContainer = null;
// === Gwarantowana unikalność IV (AES-GCM): ===
// 1) każdy nadawca szyfruje WŁASNYM podkluczem HKDF(root, "larpix:voice:v1:"+senderId)
// -> kolizja między nadawcami niemożliwa z konstrukcji,
// 2) IV(12B) = epoka(4B = SHA-256(ticketPublicId)[0..4]) || licznik(8B BE, ściśle rosnący)
// -> kolizja w ramach jednego nadawcy niemożliwa w obrębie epoki; każde dołączenie
// do calla ma unikalny ticketPublicId (single-use po stronie serwera), a licznik
// może się resetować TYLKO razem ze zmianą klucza root.
let voiceMySenderCryptoKey = null; // mój podklucz nadawcy (CryptoKey)
const voicePeerSenderKeys = new Map(); // clientIdStr -> Promise<CryptoKey> odbiorczy
let voiceSendEpoch = null; // Uint8Array(4)
let voiceSendCounter = 0n; // BigInt, monotoniczny w ramach epoki
//Promise rozstrzygany gdy operacja na kluczu root (ustawienie/wyczyszczenie)
//jest gotowa - pozwala innym kodom czekać zamiast wchodzić w wyścig z derivacją.
let voiceRootKeyReady = Promise.resolve();
const VOICE_HKDF_INFO_PREFIX = "larpix:voice:v1:";
function voiceHkdfInfoBytes(senderIdStr) {
const prefix = new TextEncoder().encode(VOICE_HKDF_INFO_PREFIX);
const idBytes = new TextEncoder().encode(String(senderIdStr));
const out = new Uint8Array(prefix.length + idBytes.length);
out.set(prefix, 0);
out.set(idBytes, prefix.length);
return out;
}
async function deriveVoiceSenderKey(rootBytes, senderIdStr) {
const ikm = await crypto.subtle.importKey("raw", rootBytes, "HKDF", false, ["deriveBits"]);
const bits = await crypto.subtle.deriveBits(
{name: "HKDF", hash: "SHA-256", salt: new Uint8Array(0), info: voiceHkdfInfoBytes(senderIdStr)},
ikm, 256
);
return await crypto.subtle.importKey("raw", new Uint8Array(bits), {name: "AES-GCM"}, false, ["encrypt", "decrypt"]);
}
//Jedyny punkt zmiany klucza root. Reset licznika jest poprawny wyłącznie tutaj -
//nowy root = świeża przestrzeń IV. Null czyści cały stan.
function setVoiceRootKey(bytesOrNull) {
const done = (async () => {
if (!bytesOrNull) {
voiceAesKeyBytes = null;
voiceMySenderCryptoKey = null;
voicePeerSenderKeys.clear();
return;
}
voicePeerSenderKeys.clear();
const k = await deriveVoiceSenderKey(bytesOrNull, String(window.id));
voiceAesKeyBytes = bytesOrNull;
voiceMySenderCryptoKey = k;
})();
voiceRootKeyReady = done;
return done;
}
//Epoka z unikalnego per-dołączenie ticketPublicId - deterministycznie, bez dodatkowego losowania.
function setVoiceEpochFromTicket(publicIdB64u) {
crypto.subtle.digest("SHA-256", new TextEncoder().encode(String(publicIdB64u))).then(d => {
voiceSendEpoch = new Uint8Array(d).slice(0, 4);
voiceSendCounter = 0n;
}).catch(() => { voiceSendEpoch = null; voiceSendCounter = 0n; });
}
//Jedynne źródło IV do wysyłki. Inkrementacja synchroniczna (single-thread JS = atomiczne).
function nextVoiceIv() {
if (!voiceSendEpoch) throw new Error("voice epoch not ready");
voiceSendCounter += 1n;
if (voiceSendCounter >= (1n << 63n)) throw new Error("voice iv counter exhausted"); //praktycznie nieosiągalne
const iv = new Uint8Array(12);
iv.set(voiceSendEpoch, 0);
let c = voiceSendCounter;
for (let i = 0; i < 8; i++) {
iv[11 - i] = Number(c & 0xffn);
c >>= 8n;
}
return iv;
}
//Podklucz odbiorczy danego nadawcy (cache). clientId to dziesiętny string ulonga -
//dokładnie ta sama forma, której nadawca użył przy derivacji własnego klucza.
function getVoicePeerSenderKey(clientIdStr) {
let p = voicePeerSenderKeys.get(clientIdStr);
if (!p && voiceAesKeyBytes) {
p = deriveVoiceSenderKey(voiceAesKeyBytes, clientIdStr);
voicePeerSenderKeys.set(clientIdStr, p);
}
return p || null;
}
let micStream = null, audioContext = null, isAudioWorkletLoaded = false;
let micSourceNode = null, senderNode = null, receiverNode = null, audioEncoder = null;
let remoteAudio = {}, audioDecoders = {}, audioDecryptChains = {};
@ -39,6 +128,8 @@ let peerLastSeen = {};
let deadPeers = new Set();
let lastVoiceServerPacketAt = 0;
let voicePingTimer = null;
let voiceRosterRetryTimer = null;
let lastVoiceKeyRequestAt = 0;
let voiceReconnectAttempts = 0;
let voiceSocketOpenedAt = 0;
@ -61,9 +152,9 @@ function cleanupPeerMedia(userId) {
}
function sendVoicePing() {
if (!currentVoiceWs || currentVoiceWs.readyState !== WebSocket.OPEN || !voiceAesCryptoKey) return;
const iv = crypto.getRandomValues(new Uint8Array(12));
crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceAesCryptoKey, new Uint8Array([Date.now() & 255])).then(cipher => {
if (!currentVoiceWs || currentVoiceWs.readyState !== WebSocket.OPEN || !voiceMySenderCryptoKey) return;
const iv = nextVoiceIv();
crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceMySenderCryptoKey, new Uint8Array([Date.now() & 255])).then(cipher => {
if (!currentVoiceWs || currentVoiceWs.readyState !== WebSocket.OPEN) return;
const payload = new Uint8Array(14 + cipher.byteLength);
payload[0] = 5; payload[1] = 0; payload.set(iv, 2); payload.set(new Uint8Array(cipher), 14);
@ -530,6 +621,16 @@ setInterval(() => {
} else if (audioContext && audioContext.state === 'suspended') {
audioContext.resume().catch(() => {});
}
// Safety net for the call-key handshake: if others are in the call but
// we never received the root key (raced/lost signal), ask for it
// instead of staying deaf until someone refreshes the page.
if (others > 0 && !voiceAesKeyBytes && now - lastVoiceKeyRequestAt > 4000) {
lastVoiceKeyRequestAt = now;
console.debug("Voice: requesting call key from peers");
for (const u of voiceActiveUsers) {
if (u !== String(window.id)) sendVoiceSignalToUser(u, currentVoiceCallId, true);
}
}
}
if (changed) updateVoiceUIUsers();
}, 2000);
@ -682,6 +783,8 @@ async function requestVoiceJoin() {
let serverUrl = parts[0];
const [publicId, connKey, proof] = [parts[1], parts[2], parts[3]];
//epoka IV z unikalnego (single-use) publicId - każde dołączenie = rozłączna przestrzeń IV
setVoiceEpochFromTicket(publicId);
if (!serverUrl.startsWith("ws://") && !serverUrl.startsWith("wss://")) {
serverUrl = serverUrl.includes("localhost") || serverUrl.includes("127.0.0.1") ? "ws://" + serverUrl : "wss://" + serverUrl;
}
@ -780,7 +883,21 @@ async function startVoiceSession(serverUrl, ticket) {
} catch (e) {}
};
fetchUsers();
voiceWsHeartbeat = setInterval(fetchUsers, 5000);
//The voice-server roster is joined only AFTER ticket validation (an
//HTTP roundtrip to the main server), so the immediate fetch can still
//miss us - retry quickly until our own tile shows up instead of
//staring at an empty call for the first heartbeat.
if (voiceRosterRetryTimer) clearInterval(voiceRosterRetryTimer);
let rosterTries = 0;
voiceRosterRetryTimer = setInterval(() => {
if (!currentVoiceWs || currentVoiceWs.readyState !== WebSocket.OPEN ||
voiceActiveUsers.includes(String(window.id)) || ++rosterTries > 12) {
clearInterval(voiceRosterRetryTimer);
voiceRosterRetryTimer = null;
return;
}
fetchUsers();
}, 400);
voiceReconnectAttempts = 0;
lastVoiceServerPacketAt = Date.now();
@ -847,9 +964,9 @@ async function startVoiceSession(serverUrl, ticket) {
if (micLevelBar) micLevelBar.style.backgroundColor = 'var(--big-green)';
if (vdsLevelFill) vdsLevelFill.style.backgroundColor = 'var(--big-green)';
if (!voiceAesCryptoKey) return;
const iv = crypto.getRandomValues(new Uint8Array(12));
const cipher = await crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceAesCryptoKey, audioData);
if (!voiceMySenderCryptoKey) return;
const iv = nextVoiceIv();
const cipher = await crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceMySenderCryptoKey, audioData);
const payload = new Uint8Array(14 + cipher.byteLength);
payload[0] = 0; payload[1] = 0; payload.set(iv, 2); payload.set(new Uint8Array(cipher), 14);
currentVoiceWs.send(payload.buffer);
@ -886,7 +1003,10 @@ async function startVoiceSession(serverUrl, ticket) {
const iv = new Uint8Array(arrayBuffer, 10, 12);
const ciphertext = new Uint8Array(arrayBuffer, 22);
if (!voiceAesCryptoKey) return;
if (!voiceAesKeyBytes) return;
//podklucz nadawcy - deterministyczny z (root, clientId)
const senderKeyPromise = getVoicePeerSenderKey(clientId);
if (type === 0 || type === 4) {
const isScreenAudio = (type === 4);
@ -899,7 +1019,9 @@ async function startVoiceSession(serverUrl, ticket) {
const targetReceiver = isScreenAudio ? screenReceiverNode : receiverNode;
audioDecryptChains[audioId].enqueue(async () => {
try {
const decryptedBuffer = await crypto.subtle.decrypt({name: "AES-GCM", iv}, voiceAesCryptoKey, ciphertext);
const senderKey = await senderKeyPromise;
if (!senderKey) return;
const decryptedBuffer = await crypto.subtle.decrypt({name: "AES-GCM", iv}, senderKey, ciphertext);
if(targetReceiver) targetReceiver.port.postMessage({ clientId: audioId, audioData: decryptedBuffer }, [decryptedBuffer]);
setTileSpeaking(clientId, true, isScreenAudio ? `${clientId}-2` : null);
@ -911,7 +1033,9 @@ async function startVoiceSession(serverUrl, ticket) {
videoDecryptChains[decoderId].enqueue(async () => {
try {
const decryptedBuffer = await crypto.subtle.decrypt({name: "AES-GCM", iv}, voiceAesCryptoKey, ciphertext);
const senderKey = await senderKeyPromise;
if (!senderKey) return;
const decryptedBuffer = await crypto.subtle.decrypt({name: "AES-GCM", iv}, senderKey, ciphertext);
if (!remoteVideos[decoderId]) {
const canvas = document.createElement('canvas');
@ -971,8 +1095,12 @@ async function startVoiceSession(serverUrl, ticket) {
} catch (err) {}
});
} else if (type === 3) {
crypto.subtle.decrypt({name: "AES-GCM", iv}, voiceAesCryptoKey, ciphertext).then(decrypted => {
const stoppedTypeId = new Uint8Array(decrypted)[0];
(async () => {
try {
const senderKey = await senderKeyPromise;
if (!senderKey) return;
const decrypted = await crypto.subtle.decrypt({name: "AES-GCM", iv}, senderKey, ciphertext);
const stoppedTypeId = new Uint8Array(decrypted)[0];
if (stoppedTypeId === 4) {
const audioId = `${clientId}_screen`;
if (remoteAudio[audioId]) {
@ -989,7 +1117,8 @@ async function startVoiceSession(serverUrl, ticket) {
updateVoiceUIUsers();
}
}
}).catch(() => {});
} catch (err) {}
})();
}
};
@ -1021,9 +1150,12 @@ async function startVoiceSession(serverUrl, ticket) {
}
}
function handleCallUpdate(data) {
async function handleCallUpdate(data) {
let parts = data.split(":");
let roomId = parts[1];
//Ignore updates for rooms we have nothing to do with - they would otherwise
//overwrite the participant list of an ongoing call and wipe its tiles.
if (roomId !== currentVoiceCallId && roomId !== window.currentDmId) return;
let state = [];
if(parts.slice(2).join(":") !== "") {
let stateRaw = JSON.parse(parts.slice(2).join(":"));
@ -1034,10 +1166,13 @@ function handleCallUpdate(data) {
if (currentVoiceCallId === roomId) {
let myIdStr = String(window.id);
if (!voiceAesKeyBytes && state.length === 1 && state[0] === myIdStr) {
voiceAesKeyBytes = crypto.getRandomValues(new Uint8Array(32));
crypto.subtle.importKey("raw", voiceAesKeyBytes, {name: "AES-GCM"}, false, ["encrypt", "decrypt"])
.then(k => voiceAesCryptoKey = k);
setVoiceRootKey(crypto.getRandomValues(new Uint8Array(32)));
}
//The root key is set asynchronously - wait for it before distributing.
//Otherwise a fast second join produces [me,peer] while the derivation
//is still running, no signal is sent and the peer never gets the key
//(audio stayed broken for everyone until someone refreshed the page).
await voiceRootKeyReady;
if (voiceAesKeyBytes) {
for (let u of state) {
if (u !== myIdStr) sendVoiceSignalToUser(u, roomId);
@ -1120,7 +1255,7 @@ async function resolveCallerInfo(roomId) {
}
function showIncomingCallUI(roomId) {
if (document.getElementById("incoming-call-popup") || currentVoiceWs) return;
if (document.getElementById("incoming-call-popup") || currentVoiceWs || voiceJoinInFlight) return;
let cachedName = window.dmUsernameCache ? window.dmUsernameCache[roomId] : null;
if (cachedName && cachedName.includes(':')) cachedName = cachedName.split(':')[0];
@ -1174,18 +1309,24 @@ function joinIncomingCall(roomId) {
initiateVoiceCall(roomId);
}
async function sendVoiceSignalToUser(targetUserId, roomId) {
async function sendVoiceSignalToUser(targetUserId, roomId, requestData = false) {
try {
let publicKeysRaw = await fetchAsync(`${url}/user/key/getpublic?id=${targetUserId}`);
let publicKeys = JSON.parse(publicKeysRaw);
let hybrid = await deriveHybridKeyToUser(publicKeys);
let encForMember = await encryptAesGcmToBase64(uint8ToBase64(voiceAesKeyBytes), hybrid.aesKeyBytes);
let setupPayloadJson = JSON.stringify({
v: 1,
ctMlKem: hybrid.ciphertextMlKemBase64,
enc: encForMember
});
let setupPayloadJson;
if (!requestData && voiceAesKeyBytes) {
let publicKeysRaw = await fetchAsync(`${url}/user/key/getpublic?id=${targetUserId}`);
let publicKeys = JSON.parse(publicKeysRaw);
let hybrid = await deriveHybridKeyToUser(publicKeys);
let encForMember = await encryptAesGcmToBase64(uint8ToBase64(voiceAesKeyBytes), hybrid.aesKeyBytes);
setupPayloadJson = JSON.stringify({
v: 1,
ctMlKem: hybrid.ciphertextMlKemBase64,
enc: encForMember
});
} else {
//Prośba o klucz rozmowy (bez sekretów) - adresat z kluczem odpowie pełnym sygnałem.
setupPayloadJson = JSON.stringify({ v: 1, needKey: true });
}
let payload = JSON.stringify({
string1: currentVoiceCallType,
@ -1204,15 +1345,22 @@ async function handleRoomSignal(data) {
let signalStr = parts.slice(2).join(":");
let signalObj = JSON.parse(signalStr);
if (String(signalObj.to) === String(window.id) && roomId === currentVoiceCallId && !voiceAesKeyBytes) {
if (String(signalObj.to) === String(window.id) && roomId === currentVoiceCallId) {
try {
let setupData = JSON.parse(signalObj.data);
let publicKeysRaw = await fetchAsync(`${url}/user/key/getpublic?id=${signalObj.from}`);
let otherPublicKeysObj = JSON.parse(publicKeysRaw);
let aesKeyBytes = await deriveHybridKeyFromSetup(otherPublicKeysObj, setupData.ctMlKem);
let decRoomKeyB64 = await decryptAesGcmFromBase64(setupData.enc, aesKeyBytes);
voiceAesKeyBytes = base64ToUint8(decRoomKeyB64);
voiceAesCryptoKey = await crypto.subtle.importKey("raw", voiceAesKeyBytes, {name: "AES-GCM"}, false, ["encrypt", "decrypt"]);
if (setupData.needKey) {
//Peer nie dostał klucza rozmowy (wygryziony/zagubiony sygnał) -
//odeślij mu go, ale tylko jeśli sami już go mamy.
if (voiceAesKeyBytes) await sendVoiceSignalToUser(signalObj.from, roomId);
return;
}
if (!voiceAesKeyBytes) {
let publicKeysRaw = await fetchAsync(`${url}/user/key/getpublic?id=${signalObj.from}`);
let otherPublicKeysObj = JSON.parse(publicKeysRaw);
let aesKeyBytes = await deriveHybridKeyFromSetup(otherPublicKeysObj, setupData.ctMlKem);
let decRoomKeyB64 = await decryptAesGcmFromBase64(setupData.enc, aesKeyBytes);
await setVoiceRootKey(base64ToUint8(decRoomKeyB64));
}
} catch(e) {
console.error("Signal decryption failed", e);
}
@ -2038,6 +2186,12 @@ function ensureVoiceGridObserver() {
voiceGridRO.observe(container);
}
/*
* Wszystkie kafelki to kwadraty o wspólnym rozmiarze --voice-tile-size.
* Wybieramy największy rozmiar kwadratu, przy którym n kafelków mieści się
* w oknie rozmowy - układanie i zawijanie do następnych rzędów robi sam
* flex-wrap w CSS (justify-content: center).
*/
function relayoutVoiceTiles() {
let container = document.getElementById("voice-users");
if (!container || !container.isConnected) return;
@ -2052,28 +2206,34 @@ function relayoutVoiceTiles() {
const innerH = container.clientHeight - parseFloat(cs.paddingTop) - parseFloat(cs.paddingBottom);
if (!isFinite(innerW) || !isFinite(innerH) || !isFinite(rootFs) || innerW <= 0 || innerH <= 0 || rootFs <= 0) {
container.style.removeProperty("--voice-tile-w");
container.style.removeProperty("--voice-tile-h");
container.style.removeProperty("--voice-tile-size");
delete container.dataset.layoutSig;
return;
}
const minCol = 6.25 * rootFs;
const minRow = 7 * rootFs;
const gap = 0.75 * rootFs;
const maxSize = 18 * rootFs; // jedna osoba nie dostanie gigantycznego kafelka
const minSize = 4.5 * rootFs; // poniżej tego wolimy scrollować niż spłaszczać
const maxCols = Math.max(1, Math.floor((innerW + gap) / (minCol + gap)));
const cols = Math.min(n, maxCols);
const rows = Math.ceil(n / cols);
const w = Math.floor((innerW - gap * (cols - 1)) / cols);
const h = Math.floor(Math.max(minRow, (innerH - gap * (rows - 1)) / rows));
//Największy kwadrat, przy którym n kafelków mieści się w dostępnej powierzchni:
//próbujemy liczby kolumn 1..n, dla każdej wyliczamy ograniczony rozmiar
//(szerokość kolumny vs wysokość rzędu) i bierzemy najlepszy wariant.
let best = 0;
for (let cols = 1; cols <= n; cols++) {
const rows = Math.ceil(n / cols);
const s = Math.min(
(innerW - gap * (cols - 1)) / cols,
(innerH - gap * (rows - 1)) / rows
);
if (s > best) best = s;
}
const sig = `${n}:${cols}:${w}x${h}`;
const size = Math.min(maxSize, Math.max(minSize, Math.floor(best)));
const sig = `${n}:${size}`;
if (container.dataset.layoutSig === sig) return;
container.dataset.layoutSig = sig;
container.style.setProperty("--voice-tile-w", w + "px");
container.style.setProperty("--voice-tile-h", h + "px");
container.style.setProperty("--voice-tile-size", size + "px");
}
let voiceSettingsState = null;
@ -2179,10 +2339,16 @@ function teardownVoiceTransport() {
audioDecryptChains = {};
peerLastSeen = {};
deadPeers.clear();
if (voiceRosterRetryTimer) { clearInterval(voiceRosterRetryTimer); voiceRosterRetryTimer = null; }
lastVoiceKeyRequestAt = 0;
//Stale participants from the previous attempt must not linger in the UI
voiceActiveUsers = [];
updateVoiceUIUsers();
if (receiverNode) receiverNode.port.postMessage({action: 'clear'});
if (screenReceiverNode) screenReceiverNode.port.postMessage({action: 'clear'});
voiceAesKeyBytes = null;
voiceAesCryptoKey = null;
setVoiceRootKey(null);
voiceSendEpoch = null;
voiceSendCounter = 0n;
lastVoiceServerPacketAt = Date.now();
}
@ -2243,8 +2409,11 @@ function endVoiceSession() {
if (voiceWsHeartbeat) { clearInterval(voiceWsHeartbeat); voiceWsHeartbeat = null; }
if (voicePingTimer) { clearInterval(voicePingTimer); voicePingTimer = null; }
if (voiceRosterRetryTimer) { clearInterval(voiceRosterRetryTimer); voiceRosterRetryTimer = null; }
peerLastSeen = {};
deadPeers.clear();
lastVoiceKeyRequestAt = 0;
voiceActiveUsers = [];
for (let id in audioDecoders) {
try { audioDecoders[id].close(); } catch(e){}
@ -2275,8 +2444,9 @@ function endVoiceSession() {
remoteVideos = {};
videoDecryptChains = {};
voiceAesKeyBytes = null;
voiceAesCryptoKey = null;
setVoiceRootKey(null);
voiceSendEpoch = null;
voiceSendCounter = 0n;
currentVoiceWs = null;
currentVoiceCallType = null;
currentVoiceCallId = null;
@ -2322,11 +2492,11 @@ async function startHardwareVideo(btnEl, streamPromise, typeLabel, typeId) {
screenAudioSourceNode = audioContext.createMediaStreamSource(stream);
screenSenderNode = new AudioWorkletNode(audioContext, 'audio-sender');
screenSenderNode.port.onmessage = async (e) => {
if (currentVoiceWs?.readyState !== WebSocket.OPEN || !voiceAesCryptoKey) return;
if (currentVoiceWs?.readyState !== WebSocket.OPEN || !voiceMySenderCryptoKey) return;
// Same backpressure valve as the mic sender.
if (currentVoiceWs.bufferedAmount > 256 * 1024) return;
const iv = crypto.getRandomValues(new Uint8Array(12));
const cipher = await crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceAesCryptoKey, e.data.audioData);
const iv = nextVoiceIv();
const cipher = await crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceMySenderCryptoKey, e.data.audioData);
const payload = new Uint8Array(14 + cipher.byteLength);
payload[0] = 4; payload[1] = 0; payload.set(iv, 2); payload.set(new Uint8Array(cipher), 14);
currentVoiceWs.send(payload.buffer);
@ -2357,10 +2527,10 @@ async function startHardwareVideo(btnEl, streamPromise, typeLabel, typeId) {
let currentConfig = getCurrentConfig(), isRunning = true, frameCount = 0;
const encoder = new VideoEncoder({
output: async (chunk) => {
if (currentVoiceWs?.readyState !== WebSocket.OPEN || !voiceAesCryptoKey) return;
if (currentVoiceWs?.readyState !== WebSocket.OPEN || !voiceMySenderCryptoKey) return;
const buffer = new ArrayBuffer(chunk.byteLength); chunk.copyTo(buffer);
const iv = crypto.getRandomValues(new Uint8Array(12));
const cipher = await crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceAesCryptoKey, buffer);
const iv = nextVoiceIv();
const cipher = await crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceMySenderCryptoKey, buffer);
const payload = new Uint8Array(14 + cipher.byteLength);
payload[0] = typeId; payload[1] = chunk.type === 'key' ? 1 : 0; payload.set(iv, 2); payload.set(new Uint8Array(cipher), 14);
currentVoiceWs.send(payload.buffer);
@ -2412,9 +2582,9 @@ async function startHardwareVideo(btnEl, streamPromise, typeLabel, typeId) {
updateVoiceUIUsers();
btnEl.classList.remove('voice-btn-active');
if (currentVoiceWs?.readyState === WebSocket.OPEN && voiceAesCryptoKey) {
const buffer = new Uint8Array([typeId]); const iv = crypto.getRandomValues(new Uint8Array(12));
const cipher = await crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceAesCryptoKey, buffer);
if (currentVoiceWs?.readyState === WebSocket.OPEN && voiceMySenderCryptoKey) {
const buffer = new Uint8Array([typeId]); const iv = nextVoiceIv();
const cipher = await crypto.subtle.encrypt({name: "AES-GCM", iv}, voiceMySenderCryptoKey, buffer);
const payload = new Uint8Array(14 + cipher.byteLength);
payload[0] = 3; payload[1] = 0; payload.set(iv, 2); payload.set(new Uint8Array(cipher), 14); currentVoiceWs.send(payload.buffer);
}
@ -2423,9 +2593,9 @@ async function startHardwareVideo(btnEl, streamPromise, typeLabel, typeId) {
if (screenAudioSourceNode) { screenAudioSourceNode.disconnect(); screenAudioSourceNode = null; }
if (screenSenderNode) { screenSenderNode.disconnect(); screenSenderNode = null; }
if (screenAudioEncoder) { try { screenAudioEncoder.close(); } catch (e) {} screenAudioEncoder = null; }
if (currentVoiceWs?.readyState === WebSocket.OPEN && voiceAesCryptoKey) {
const bufferAudioInfo = new Uint8Array([4]); const ivA = crypto.getRandomValues(new Uint8Array(12));
const cipherA = await crypto.subtle.encrypt({name: "AES-GCM", iv: ivA}, voiceAesCryptoKey, bufferAudioInfo);
if (currentVoiceWs?.readyState === WebSocket.OPEN && voiceMySenderCryptoKey) {
const bufferAudioInfo = new Uint8Array([4]); const ivA = nextVoiceIv();
const cipherA = await crypto.subtle.encrypt({name: "AES-GCM", iv: ivA}, voiceMySenderCryptoKey, bufferAudioInfo);
const payloadA = new Uint8Array(14 + cipherA.byteLength);
payloadA[0] = 3; payloadA[1] = 0; payloadA.set(ivA, 2); payloadA.set(new Uint8Array(cipherA), 14); currentVoiceWs.send(payloadA.buffer);
}