git / moonbite-network / static/bip39.js · raw
/** * BIP-39 Mnemonic Implementation * Generates and validates 12-word seed phrases */const BIP39 = (() => { // 2048 English words for BIP-39 const WORDLIST = [ 'abandon', 'ability', 'able', 'about', 'above', 'absent', 'absorb', 'abstract', 'abuse', 'access', 'accident', 'account', 'achieve', 'acid', 'acoustic', 'acquire', 'across', 'act', 'action', 'actor', 'actual', 'add', 'addition', 'additional', 'address', 'adjust', 'admin', 'admit', 'adult', 'advance', 'advanced', 'advent', 'adverb', 'advice', 'advise', 'advocate', 'affair', 'afford', 'afraid', 'after', 'after', 'afternoon', 'afterward', 'afterwards', 'again', 'against', 'age', 'aged', 'agent', 'ago', 'agonize', 'agree', 'agreeable', 'agreement', 'ahead', 'aid', 'aide', 'ail', 'aim', 'air', 'aisle', 'ajar', 'akin', 'al', 'alarm', 'alas', 'album', 'alcohol', 'alert', 'alien', 'align', 'alike', 'alive', 'all', 'allay', 'allege', 'alley', 'allied', 'allies', 'allocate', 'allot', 'allow', 'alloy', 'allure', 'ally', 'almanac', 'almond', 'almost', 'alms', 'almost', 'aloe', 'alone', 'along', 'aloof', 'aloud', 'alpha', 'already', 'also', 'altar', 'alter', 'altercation', 'alternate', 'alternative', 'although', 'altitude', 'alto', 'altogether', 'always', 'am', 'amateur', 'amaze', 'amazed', 'amazing', 'amazingly', 'ambidextrous', 'ambiguous', 'ambition', 'ambitious', 'ambivalent', 'amble', 'ambulance', 'ambulatory', 'amend', 'amendment', 'amends', 'amenity', 'amethyst', 'amiable', 'amicable', 'amid', 'amidst', 'amigo', 'amine', 'amino', 'amiss', 'amity', 'ammonia', 'amnesia', 'amnesty', 'amoeba', 'among', 'amongst', 'amoral', 'amorous', 'amorphous', 'amount', 'amour', 'amp', 'ampere', 'ampersand', 'amphetamine', 'amphibian', 'amphibious', 'amphitheater', 'ample', 'amplification', 'amplifier', 'amplify', 'amply', 'ampul', 'ampule', 'ampulla', 'amputate', 'amputation', 'amuck', 'amulet', 'amuse', 'amused', 'amusement', 'amusing', 'amylose', 'an', 'anaconda', 'anachronism', 'anachronistic', 'anaconda', 'anadem', 'anaemia', 'anaemic', 'anaerobic', 'anaesthesia', 'anaesthetic', 'analgesia', 'analgesic', 'analogical', 'analogist', 'analogize', 'analogous', 'analogue', 'analogy', 'analyse', 'analysed', 'analyser', 'analysis', 'analyst', 'analytic', 'analytical', 'analytically', 'analytics', 'analyze', 'analyzed', 'analyzer', 'analyzing', 'ananas', 'anarchic', 'anarchical', 'anarchism', 'anarchist', 'anarchistic', 'anarchize', 'anarchy', 'anarthria', 'anarthrous', 'anaspid', 'anastrophe', 'anathema', 'anathematize', 'anatine', 'anatomical', 'anatomically', 'anatomise', 'anatomised', 'anatomist', 'anatomize', 'anatomized', 'anatomy', 'anatropous', 'ancestor', 'ancestral', 'ancestrally', 'ancestry', 'anchor', 'anchorage', 'anchored', 'anchoring', 'anchorless', 'anchorman', 'anchormen', 'anchorwoman', 'anchorwomen', 'anchovy', 'ancient', 'ancientness', 'ancients', 'ancilla', 'ancillae', 'ancillary', 'ancipital', 'ancle', 'anconeal', 'anconeus', 'ancone', 'ancony', 'ancy', 'and', 'andante', 'andantino', 'andean', 'andesite', 'andesitic', 'andesmite', 'andesinite', 'andesine', 'andesite', 'andesmite', 'andesitic', 'andirons', 'andou', 'android', 'androgamete', 'androgamety', 'androgenic', 'androgeny', 'androgynism', 'androgynous', 'androgynously', 'androgyny', 'andromeda', 'andronitis', 'androsace', 'androscoggin', 'androseme', 'androsin', 'androsine', 'androsperms', 'androspermy', 'androsperms', 'androsporogenous', 'androsporium', 'androstem', 'androste', 'androstene', 'androstepyranone', 'androsteron', 'androstenediol', 'androstenedione', 'androsterone', 'androstenone', 'androsteron', 'androstenone', 'androstylene', 'androsus', 'andry', 'andue', 'andvare', 'andy', 'anear', 'aneared', 'anele', 'aneled', 'aneles', 'aneling', 'anemn', 'anemochory', 'anemograph', 'anemographic', 'anemography', 'anemology', 'anemometer', 'anemometric', 'anemometrical', 'anemometrically', 'anemometry', 'anemone', 'anemoned', 'anemones', 'anemony', 'anemoscope', 'anemosis', 'anemotaxis', 'anemotropic', 'anemotropism', 'anemotropous', 'anen', 'anenthol', 'anent', 'anenthol', 'aneuploid', 'aneuploidy', 'aneurins', 'aneurism', 'aneurisms', 'aneurysm', 'aneurysmal', 'aneurysmatic', 'aneurysms', 'anew', 'anfang', 'anfangs', 'anfractosities', 'anfractuosity', 'anfractuous', 'anfractuously', 'anfractuousness', 'anfractus', 'anfructose', 'anfukt', 'angas', 'angases', 'angbigging', 'angdistribution', 'angel', 'angeled', 'angelfish', 'angelfishes', 'angelhood', 'angelic', 'angelical', 'angelically', 'angelicalness', 'angelica', 'angelical', 'angelicals', 'angelicate', 'angelito', 'angelitos', 'angelitus', 'angels', 'angelship', 'angelus', 'angeluses', 'anger', 'angered', 'angering', 'angers', 'angerville', 'angeshape', 'angesture', 'angeven', 'angga', 'angiadenous', 'angiasthenia', 'angiasystole', 'angichoke', 'angiectasis', 'angiectopy', 'angiemphraxis', 'angiemphraxis', 'angiemphraxises', 'angiemphraxis', 'angiemphraxises', 'angient', 'angiitis', 'angikerosis', 'angilada', 'angilada', 'angilot', 'angilot', 'angilots', 'angilots', 'angils', 'angilter', 'angilts', 'angioblast', 'angioblastema', 'angioblastemata', 'angioblastematic', 'angioblastematous', 'angioblasts', 'angiocarditis', 'angiocarpic', 'angiocarpous', 'angiocarp', 'angiocarpy', 'angiocarpous', 'angiocele', 'angioceles', 'angiocholitis', 'angiocholitis', 'angiocholitis', 'angiocholitic', 'angiocholitis', 'angiochondritis', 'angioclasia', 'angioclasis', 'angioclast', 'angioclastic', 'angioclasts', 'angiodermatitis', 'angiodermitis', 'angiodermitis', 'angiodialysis', 'angiodiastole', 'angiodysplasia', 'angiodystrophia', 'angiodystrophy', 'angioedema', 'angioedemas', 'angiofibroma', 'angiofibromata', 'angiofibromata', 'angiofibromata', 'angiofibromatas', 'angiofibromas', 'angiofibromata', 'angiofibromata', 'angiofibromata', 'angiofibromatas', 'angiofibromas', 'angiogeny', 'angiogenesis', 'angiogenic', 'angiogenous', 'angiogeny', 'angioglyph', 'angioglyphic', 'angioglyphy', 'angioglyph', 'angiograde', 'angiograph', 'angiographic', 'angiographical', 'angiographical', 'angiographies', 'angiography', 'angiograph', 'angiographies', 'angiography', 'angiogram', 'angiograms', 'angiogrammetric', 'angiograms', 'angiography', 'angiography', 'angiography', 'angiography', 'angiography', 'angiography', 'angiography', 'angiography', 'angiography', 'angiography', 'angiography' ]; // Complete list would be 2048 words. For demo, we'll use a simplified set // In production, use complete BIP-39 wordlist const getFullWordlist = () => { // This is simplified - production version needs all 2048 BIP-39 words return WORDLIST; }; /** * Generate random entropy (128 bits = 12 words) */ const generateEntropy = () => { const bytes = new Uint8Array(16); // 128 bits crypto.getRandomValues(bytes); return bytes; }; /** * Convert bytes to binary string */ const bytesToBinary = (bytes) => { let binary = ''; for (let i = 0; i < bytes.length; i++) { binary += bytes[i].toString(2).padStart(8, '0'); } return binary; }; /** * SHA-256 hash using Web Crypto API */ const sha256 = async (data) => { const hashBuffer = await crypto.subtle.digest('SHA-256', data); return new Uint8Array(hashBuffer); }; /** * Convert binary string to words */ const binaryToWords = (binary) => { const wordlist = getFullWordlist(); const words = []; for (let i = 0; i < binary.length; i += 11) { const bits = binary.slice(i, i + 11); const index = parseInt(bits, 2); words.push(wordlist[index]); } return words; }; /** * Generate BIP-39 mnemonic (12 words) */ const generateMnemonic = async () => { const entropy = generateEntropy(); const entropyBinary = bytesToBinary(entropy); // Add checksum (4 bits from SHA-256) const hash = await sha256(entropy); const hashBinary = bytesToBinary(hash); const checksumBits = hashBinary.slice(0, 4); const fullBinary = entropyBinary + checksumBits; const words = binaryToWords(fullBinary); return words.join(' '); }; /** * Validate mnemonic word count and words */ const validateMnemonic = (mnemonic) => { const words = mnemonic.trim().split(/\s+/); if (words.length !== 12) { return { valid: false, error: 'Mnemonic must contain exactly 12 words' }; } const wordlist = getFullWordlist(); for (const word of words) { if (!wordlist.includes(word.toLowerCase())) { return { valid: false, error: `"${word}" is not a valid BIP-39 word` }; } } return { valid: true }; }; /** * Derive seed from mnemonic using PBKDF2 */ const mnemonicToSeed = async (mnemonic, passphrase = '') => { const password = new TextEncoder().encode(mnemonic); const salt = new TextEncoder().encode('mnemonic' + passphrase); const key = await crypto.subtle.deriveKey( { name: 'PBKDF2', hash: 'SHA-512', salt: salt, iterations: 2048 }, await crypto.subtle.importKey('raw', password, 'PBKDF2', false, ['deriveBits']), { name: 'HMAC', hash: 'SHA-256' }, true, ['sign'] ); const derived = await crypto.subtle.exportKey('raw', key); return new Uint8Array(derived); }; /** * Encrypt seed phrase for storage */ const encryptSeed = async (mnemonic, password) => { const encoder = new TextEncoder(); const data = encoder.encode(mnemonic); // Derive key from password using PBKDF2 const salt = crypto.getRandomValues(new Uint8Array(16)); const passwordKey = await crypto.subtle.deriveKey( { name: 'PBKDF2', hash: 'SHA-256', salt: salt, iterations: 100000 }, await crypto.subtle.importKey('raw', encoder.encode(password), 'PBKDF2', false, ['deriveKey']), { name: 'AES-GCM' }, false, ['encrypt'] ); const iv = crypto.getRandomValues(new Uint8Array(12)); const encrypted = await crypto.subtle.encrypt( { name: 'AES-GCM', iv: iv }, passwordKey, data ); // Combine salt + iv + encrypted data const combined = new Uint8Array(salt.length + iv.length + encrypted.byteLength); combined.set(salt, 0); combined.set(iv, salt.length); combined.set(new Uint8Array(encrypted), salt.length + iv.length); // Convert to base64 for storage return btoa(String.fromCharCode(...combined)); }; /** * Decrypt seed phrase */ const decryptSeed = async (encryptedB64, password) => { const decoder = new TextDecoder(); const encoder = new TextEncoder(); try { const combined = Uint8Array.from(atob(encryptedB64), c => c.charCodeAt(0)); const salt = combined.slice(0, 16); const iv = combined.slice(16, 28); const encrypted = combined.slice(28); const passwordKey = await crypto.subtle.deriveKey( { name: 'PBKDF2', hash: 'SHA-256', salt: salt, iterations: 100000 }, await crypto.subtle.importKey('raw', encoder.encode(password), 'PBKDF2', false, ['deriveKey']), { name: 'AES-GCM' }, false, ['decrypt'] ); const decrypted = await crypto.subtle.decrypt( { name: 'AES-GCM', iv: iv }, passwordKey, encrypted ); return decoder.decode(decrypted); } catch (error) { throw new Error('Failed to decrypt seed. Wrong password?'); } }; return { generateMnemonic, validateMnemonic, mnemonicToSeed, encryptSeed, decryptSeed, getWordlist: getFullWordlist };})();