SecureBitChat/securebit-chat
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fix: replace modulo with bitwise mask in crypto random

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lockbitchat committed 2025-10-20 01:02:07 -04:00
1 parent 63a19e6a4c
commit a7a5861e0a
3 files changed
+38 -68
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dist/app-boot.js
Vendored
+14 -29
View File
@@ -8198,36 +8198,24 @@ var EnhancedSecureWebRTCManager = class _EnhancedSecureWebRTCManager {
if (!Number.isInteger(min) || !Number.isInteger(max)) {
throw new Error("getSafeRandomInt requires integer min and max");
}
if (min >= max) {
throw new Error("min must be less than max");
}
const range = max - min + 1;
if (range <= 0) throw new Error("Invalid range");
if (range <= 256) {
const threshold2 = 256 - 256 % range;
let randomValue2;
do {
randomValue2 = crypto.getRandomValues(new Uint8Array(1))[0];
} while (randomValue2 >= threshold2);
return min + randomValue2 % range;
}
if (range <= 65536) {
const maxValue = 65536;
const threshold2 = maxValue - maxValue % range;
let randomValue2;
do {
const randomBytes = crypto.getRandomValues(new Uint8Array(2));
randomValue2 = randomBytes[0] << 8 | randomBytes[1];
} while (randomValue2 >= threshold2);
return min + randomValue2 % range;
}
const maxUint32 = 4294967296;
const threshold = maxUint32 - maxUint32 % range;
const bitsNeeded = Math.ceil(Math.log2(range));
const bytesNeeded = Math.ceil(bitsNeeded / 8);
const mask = (1 << bitsNeeded) - 1;
let randomValue;
do {
const randomBytes = crypto.getRandomValues(new Uint8Array(4));
randomValue = (randomBytes[0] << 24 | randomBytes[1] << 16 | randomBytes[2] << 8 | randomBytes[3]) >>> 0;
} while (randomValue >= threshold);
return min + randomValue % range;
const randomBytes = crypto.getRandomValues(new Uint8Array(bytesNeeded));
randomValue = 0;
for (let i = 0; i < bytesNeeded; i++) {
randomValue = randomValue * 256 + randomBytes[i];
}
randomValue = randomValue & mask;
} while (randomValue >= range);
return min + randomValue;
}
// Safe helper: unbiased float in [minFloat, maxFloat] with scale
getSafeRandomFloat(minFloat, maxFloat, scale = 1e3) {
if (typeof minFloat !== "number" || typeof maxFloat !== "number") {
throw new Error("getSafeRandomFloat requires numeric min and max");
@@ -8240,12 +8228,10 @@ var EnhancedSecureWebRTCManager = class _EnhancedSecureWebRTCManager {
const intVal = this.getSafeRandomInt(minInt, maxInt);
return intVal / scale;
}
// Generate fingerprint mask
generateFingerprintMask() {
const mask = {
timingOffset: this.getSafeRandomInt(0, 1500),
sizeVariation: this.getSafeRandomFloat(0.75, 1.25, 1e3),
// изменен scale
noisePattern: Array.from(crypto.getRandomValues(new Uint8Array(64))),
headerVariations: [
"X-Client-Version",
@@ -8262,7 +8248,6 @@ var EnhancedSecureWebRTCManager = class _EnhancedSecureWebRTCManager {
],
noiseIntensity: this.getSafeRandomInt(50, 150),
sizeMultiplier: this.getSafeRandomFloat(0.75, 1.25, 1e3),
// изменен scale
timingVariation: this.getSafeRandomInt(100, 1100)
};
return mask;
dist/app-boot.js.map
Vendored
+3 -3
View File
@@ -1,7 +1,7 @@
{
"version": 3,
"sources": ["../src/notifications/SecureNotificationManager.js", "../src/notifications/NotificationIntegration.js", "../src/crypto/EnhancedSecureCryptoUtils.js", "../src/transfer/EnhancedSecureFileTransfer.js", "../src/network/EnhancedSecureWebRTCManager.js", "../src/scripts/app-boot.js", "../src/components/ui/Header.jsx", "../src/components/ui/DownloadApps.jsx", "../src/components/ui/UniqueFeatureSlider.jsx", "../src/components/ui/SecurityFeatures.jsx", "../src/components/ui/Testimonials.jsx", "../src/components/ui/ComparisonTable.jsx", "../src/components/ui/Roadmap.jsx", "../src/components/ui/FileTransfer.jsx"],
"sourcesContent": ["/**\n * Secure and Reliable Notification Manager for P2P WebRTC Chat\n * Follows best practices: OWASP, MDN, Chrome DevRel\n * \n * @version 1.0.0\n * @author SecureBit Team\n * @license MIT\n */\n\nclass SecureChatNotificationManager {\n constructor(config = {}) {\n // Safely read Notification permission (iOS Safari may not define Notification)\n this.permission = (typeof Notification !== 'undefined' && Notification && typeof Notification.permission === 'string')\n ? Notification.permission\n : 'denied';\n this.isTabActive = this.checkTabActive(); // Initialize with proper check\n this.unreadCount = 0;\n this.originalTitle = document.title;\n this.notificationQueue = [];\n this.maxQueueSize = config.maxQueueSize || 5;\n this.rateLimitMs = config.rateLimitMs || 2000; // Spam protection\n this.lastNotificationTime = 0;\n this.trustedOrigins = config.trustedOrigins || [];\n \n // Secure context flag\n this.isSecureContext = window.isSecureContext;\n \n // Cross-browser compatibility for Page Visibility API\n this.hidden = this.getHiddenProperty();\n this.visibilityChange = this.getVisibilityChangeEvent();\n \n this.initVisibilityTracking();\n this.initSecurityChecks();\n }\n\n /**\n * Initialize security checks and validation\n * @private\n */\n initSecurityChecks() {\n // Security checks are performed silently\n }\n\n /**\n * Get hidden property name for cross-browser compatibility\n * @returns {string} Hidden property name\n * @private\n */\n getHiddenProperty() {\n if (typeof document.hidden !== \"undefined\") {\n return \"hidden\";\n } else if (typeof document.msHidden !== \"undefined\") {\n return \"msHidden\";\n } else if (typeof document.webkitHidden !== \"undefined\") {\n return \"webkitHidden\";\n }\n return \"hidden\"; // fallback\n }\n\n /**\n * Get visibility change event name for cross-browser compatibility\n * @returns {string} Visibility change event name\n * @private\n */\n getVisibilityChangeEvent() {\n if (typeof document.hidden !== \"undefined\") {\n return \"visibilitychange\";\n } else if (typeof document.msHidden !== \"undefined\") {\n return \"msvisibilitychange\";\n } else if (typeof document.webkitHidden !== \"undefined\") {\n return \"webkitvisibilitychange\";\n }\n return \"visibilitychange\"; // fallback\n }\n\n /**\n * Check if tab is currently active using multiple methods\n * @returns {boolean} True if tab is active\n * @private\n */\n checkTabActive() {\n // Primary method: Page Visibility API\n if (this.hidden && typeof document[this.hidden] !== \"undefined\") {\n return !document[this.hidden];\n }\n \n // Fallback method: document.hasFocus()\n if (typeof document.hasFocus === \"function\") {\n return document.hasFocus();\n }\n \n // Ultimate fallback: assume active\n return true;\n }\n\n /**\n * Initialize page visibility tracking (Page Visibility API)\n * @private\n */\n initVisibilityTracking() {\n // Primary method: Page Visibility API with cross-browser support\n if (typeof document.addEventListener !== \"undefined\" && typeof document[this.hidden] !== \"undefined\") {\n document.addEventListener(this.visibilityChange, () => {\n this.isTabActive = this.checkTabActive();\n \n if (this.isTabActive) {\n this.resetUnreadCount();\n this.clearNotificationQueue();\n }\n });\n }\n\n // Fallback method: Window focus/blur events\n window.addEventListener('focus', () => {\n this.isTabActive = this.checkTabActive();\n if (this.isTabActive) {\n this.resetUnreadCount();\n }\n });\n\n window.addEventListener('blur', () => {\n this.isTabActive = this.checkTabActive();\n });\n\n // Page unload cleanup\n window.addEventListener('beforeunload', () => {\n this.clearNotificationQueue();\n });\n }\n\n /**\n * Request notification permission (BEST PRACTICE: Only call in response to user action)\n * Never call on page load!\n * @returns {Promise<boolean>} Permission granted status\n */\n async requestPermission() {\n // Secure context check\n if (!this.isSecureContext || !('Notification' in window)) {\n return false;\n }\n\n if (this.permission === 'granted') {\n return true;\n }\n\n if (this.permission === 'denied') {\n return false;\n }\n\n try {\n this.permission = await Notification.requestPermission();\n return this.permission === 'granted';\n } catch (error) {\n return false;\n }\n }\n\n /**\n * Update page title with unread count\n * @private\n */\n updateTitle() {\n if (this.unreadCount > 0) {\n document.title = `(${this.unreadCount}) ${this.originalTitle}`;\n } else {\n document.title = this.originalTitle;\n }\n }\n\n /**\n Line truncated
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"names": ["NotificationIntegration", "fileMessageTypes", "attempts", "start", "error", "attempts", "threshold", "randomValue", "chunk", "fileMessageTypes", "window", "start", "webrtcManager", "start"]
"sourcesContent": ["/**\n * Secure and Reliable Notification Manager for P2P WebRTC Chat\n * Follows best practices: OWASP, MDN, Chrome DevRel\n * \n * @version 1.0.0\n * @author SecureBit Team\n * @license MIT\n */\n\nclass SecureChatNotificationManager {\n constructor(config = {}) {\n // Safely read Notification permission (iOS Safari may not define Notification)\n this.permission = (typeof Notification !== 'undefined' && Notification && typeof Notification.permission === 'string')\n ? Notification.permission\n : 'denied';\n this.isTabActive = this.checkTabActive(); // Initialize with proper check\n this.unreadCount = 0;\n this.originalTitle = document.title;\n this.notificationQueue = [];\n this.maxQueueSize = config.maxQueueSize || 5;\n this.rateLimitMs = config.rateLimitMs || 2000; // Spam protection\n this.lastNotificationTime = 0;\n this.trustedOrigins = config.trustedOrigins || [];\n \n // Secure context flag\n this.isSecureContext = window.isSecureContext;\n \n // Cross-browser compatibility for Page Visibility API\n this.hidden = this.getHiddenProperty();\n this.visibilityChange = this.getVisibilityChangeEvent();\n \n this.initVisibilityTracking();\n this.initSecurityChecks();\n }\n\n /**\n * Initialize security checks and validation\n * @private\n */\n initSecurityChecks() {\n // Security checks are performed silently\n }\n\n /**\n * Get hidden property name for cross-browser compatibility\n * @returns {string} Hidden property name\n * @private\n */\n getHiddenProperty() {\n if (typeof document.hidden !== \"undefined\") {\n return \"hidden\";\n } else if (typeof document.msHidden !== \"undefined\") {\n return \"msHidden\";\n } else if (typeof document.webkitHidden !== \"undefined\") {\n return \"webkitHidden\";\n }\n return \"hidden\"; // fallback\n }\n\n /**\n * Get visibility change event name for cross-browser compatibility\n * @returns {string} Visibility change event name\n * @private\n */\n getVisibilityChangeEvent() {\n if (typeof document.hidden !== \"undefined\") {\n return \"visibilitychange\";\n } else if (typeof document.msHidden !== \"undefined\") {\n return \"msvisibilitychange\";\n } else if (typeof document.webkitHidden !== \"undefined\") {\n return \"webkitvisibilitychange\";\n }\n return \"visibilitychange\"; // fallback\n }\n\n /**\n * Check if tab is currently active using multiple methods\n * @returns {boolean} True if tab is active\n * @private\n */\n checkTabActive() {\n // Primary method: Page Visibility API\n if (this.hidden && typeof document[this.hidden] !== \"undefined\") {\n return !document[this.hidden];\n }\n \n // Fallback method: document.hasFocus()\n if (typeof document.hasFocus === \"function\") {\n return document.hasFocus();\n }\n \n // Ultimate fallback: assume active\n return true;\n }\n\n /**\n * Initialize page visibility tracking (Page Visibility API)\n * @private\n */\n initVisibilityTracking() {\n // Primary method: Page Visibility API with cross-browser support\n if (typeof document.addEventListener !== \"undefined\" && typeof document[this.hidden] !== \"undefined\") {\n document.addEventListener(this.visibilityChange, () => {\n this.isTabActive = this.checkTabActive();\n \n if (this.isTabActive) {\n this.resetUnreadCount();\n this.clearNotificationQueue();\n }\n });\n }\n\n // Fallback method: Window focus/blur events\n window.addEventListener('focus', () => {\n this.isTabActive = this.checkTabActive();\n if (this.isTabActive) {\n this.resetUnreadCount();\n }\n });\n\n window.addEventListener('blur', () => {\n this.isTabActive = this.checkTabActive();\n });\n\n // Page unload cleanup\n window.addEventListener('beforeunload', () => {\n this.clearNotificationQueue();\n });\n }\n\n /**\n * Request notification permission (BEST PRACTICE: Only call in response to user action)\n * Never call on page load!\n * @returns {Promise<boolean>} Permission granted status\n */\n async requestPermission() {\n // Secure context check\n if (!this.isSecureContext || !('Notification' in window)) {\n return false;\n }\n\n if (this.permission === 'granted') {\n return true;\n }\n\n if (this.permission === 'denied') {\n return false;\n }\n\n try {\n this.permission = await Notification.requestPermission();\n return this.permission === 'granted';\n } catch (error) {\n return false;\n }\n }\n\n /**\n * Update page title with unread count\n * @private\n */\n updateTitle() {\n if (this.unreadCount > 0) {\n document.title = `(${this.unreadCount}) ${this.originalTitle}`;\n } else {\n document.title = this.originalTitle;\n }\n }\n\n /**\n Line truncated
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truncated
"names": ["NotificationIntegration", "fileMessageTypes", "attempts", "start", "error", "attempts", "chunk", "fileMessageTypes", "window", "start", "webrtcManager", "start"]
}
src/network/EnhancedSecureWebRTCManager.js
+21 -36
View File
@@ -4486,45 +4486,31 @@ this._secureLog('info', '🔒 Enhanced Mutex system fully initialized and valida
if (!Number.isInteger(min) || !Number.isInteger(max)) {
throw new Error('getSafeRandomInt requires integer min and max');
}
if (min >= max) {
throw new Error('min must be less than max');
}
const range = max - min + 1;
if (range <= 0) throw new Error('Invalid range');
if (range <= 256) {
const threshold = 256 - (256 % range);
let randomValue;
do {
randomValue = crypto.getRandomValues(new Uint8Array(1))[0];
} while (randomValue >= threshold);
return min + (randomValue % range);
}
if (range <= 65536) {
const maxValue = 65536;
const threshold = maxValue - (maxValue % range);
let randomValue;
do {
const randomBytes = crypto.getRandomValues(new Uint8Array(2));
randomValue = (randomBytes[0] << 8) | randomBytes[1];
} while (randomValue >= threshold);
return min + (randomValue % range);
}
const maxUint32 = 0x100000000; // 2^32
const threshold = maxUint32 - (maxUint32 % range);
const bitsNeeded = Math.ceil(Math.log2(range));
const bytesNeeded = Math.ceil(bitsNeeded / 8);
const mask = (1 << bitsNeeded) - 1;
let randomValue;
do {
const randomBytes = crypto.getRandomValues(new Uint8Array(4));
randomValue = ((randomBytes[0] << 24) |
(randomBytes[1] << 16) |
(randomBytes[2] << 8) |
randomBytes[3]) >>> 0;
} while (randomValue >= threshold);
return min + (randomValue % range);
const randomBytes = crypto.getRandomValues(new Uint8Array(bytesNeeded));
randomValue = 0;
for (let i = 0; i < bytesNeeded; i++) {
randomValue = (randomValue * 256) + randomBytes[i];
}
randomValue = randomValue & mask;
} while (randomValue >= range);
return min + randomValue;
}
// Safe helper: unbiased float in [minFloat, maxFloat] with scale
getSafeRandomFloat(minFloat, maxFloat, scale = 1000) {
if (typeof minFloat !== 'number' || typeof maxFloat !== 'number') {
throw new Error('getSafeRandomFloat requires numeric min and max');
@@ -4539,18 +4525,17 @@ this._secureLog('info', '🔒 Enhanced Mutex system fully initialized and valida
return intVal / scale;
}
// Generate fingerprint mask
generateFingerprintMask() {
const mask = {
timingOffset: this.getSafeRandomInt(0, 1500),
sizeVariation: this.getSafeRandomFloat(0.75, 1.25, 1000), // изменен scale
sizeVariation: this.getSafeRandomFloat(0.75, 1.25, 1000),
noisePattern: Array.from(crypto.getRandomValues(new Uint8Array(64))),
headerVariations: [
'X-Client-Version', 'X-Session-ID', 'X-Request-ID', 'X-Timestamp', 'X-Signature',
'X-Secure', 'X-Encrypted', 'X-Protected', 'X-Safe', 'X-Anonymous', 'X-Private'
],
noiseIntensity: this.getSafeRandomInt(50, 150),
sizeMultiplier: this.getSafeRandomFloat(0.75, 1.25, 1000), // изменен scale
sizeMultiplier: this.getSafeRandomFloat(0.75, 1.25, 1000),
timingVariation: this.getSafeRandomInt(100, 1100)
};
return mask;