Press n or j to go to the next uncovered block, b, p or k for the previous block.
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119x 119x 119x 119x 119x 1x 1x 119x 119x 119x 119x 119x 1x 1x 119x 119x 15784x 15783x 15784x 119x 119x 119x 75x 75x 73x 75x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x 119x | 'use strict'; const { ArrayPrototypeIncludes, JSONParse, JSONStringify, ObjectDefineProperties, ReflectApply, ReflectConstruct, SafeSet, SymbolToStringTag, StringPrototypeRepeat, } = primordials; const { kWebCryptoKeyFormatRaw, kWebCryptoKeyFormatPKCS8, kWebCryptoKeyFormatSPKI, kWebCryptoCipherEncrypt, kWebCryptoCipherDecrypt, } = internalBinding('crypto'); const { validateArray, validateBoolean, validateObject, validateOneOf, validateString, } = require('internal/validators'); const { TextDecoder, TextEncoder } = require('internal/encoding'); const { codes: { ERR_ILLEGAL_CONSTRUCTOR, ERR_INVALID_ARG_TYPE, ERR_INVALID_THIS, } } = require('internal/errors'); const { CryptoKey, InternalCryptoKey, createSecretKey, isCryptoKey, } = require('internal/crypto/keys'); const { asyncDigest, } = require('internal/crypto/hash'); const { getArrayBufferOrView, hasAnyNotIn, lazyRequire, normalizeAlgorithm, normalizeHashName, validateMaxBufferLength, kExportFormats, kHandle, kKeyObject, } = require('internal/crypto/util'); const { kEnumerableProperty, lazyDOMException, } = require('internal/util'); const { getRandomValues: _getRandomValues, randomUUID: _randomUUID, } = require('internal/crypto/random'); async function digest(algorithm, data) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); return ReflectApply(asyncDigest, this, arguments); } function randomUUID() { if (this !== crypto) throw new ERR_INVALID_THIS('Crypto'); return _randomUUID(); } async function generateKey( algorithm, extractable, keyUsages) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); algorithm = normalizeAlgorithm(algorithm); validateBoolean(extractable, 'extractable'); validateArray(keyUsages, 'keyUsages'); let result; let resultType; switch (algorithm.name) { case 'RSASSA-PKCS1-v1_5': // Fall through case 'RSA-PSS': // Fall through case 'RSA-OAEP': resultType = 'CryptoKeyPair'; result = await lazyRequire('internal/crypto/rsa') .rsaKeyGenerate(algorithm, extractable, keyUsages); break; case 'Ed25519': // Fall through case 'Ed448': // Fall through case 'X25519': // Fall through case 'X448': resultType = 'CryptoKeyPair'; result = await lazyRequire('internal/crypto/cfrg') .cfrgGenerateKey(algorithm, extractable, keyUsages); break; case 'ECDSA': // Fall through case 'ECDH': resultType = 'CryptoKeyPair'; result = await lazyRequire('internal/crypto/ec') .ecGenerateKey(algorithm, extractable, keyUsages); break; case 'HMAC': resultType = 'CryptoKey'; result = await lazyRequire('internal/crypto/mac') .hmacGenerateKey(algorithm, extractable, keyUsages); break; case 'AES-CTR': // Fall through case 'AES-CBC': // Fall through case 'AES-GCM': // Fall through case 'AES-KW': resultType = 'CryptoKey'; result = await lazyRequire('internal/crypto/aes') .aesGenerateKey(algorithm, extractable, keyUsages); break; default: throw lazyDOMException('Unrecognized name.'); } if ( (resultType === 'CryptoKey' && (result.type === 'secret' || result.type === 'private') && result.usages.length === 0) || (resultType === 'CryptoKeyPair' && result.privateKey.usages.length === 0) ) { throw lazyDOMException( 'Usages cannot be empty when creating a key.', 'SyntaxError'); } return result; } async function deriveBits(algorithm, baseKey, length) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); algorithm = normalizeAlgorithm(algorithm); if (!isCryptoKey(baseKey)) throw new ERR_INVALID_ARG_TYPE('baseKey', 'CryptoKey', baseKey); if (!ArrayPrototypeIncludes(baseKey.usages, 'deriveBits')) { throw lazyDOMException( 'baseKey does not have deriveBits usage', 'InvalidAccessError'); } if (baseKey.algorithm.name !== algorithm.name) throw lazyDOMException('Key algorithm mismatch', 'InvalidAccessError'); switch (algorithm.name) { case 'X25519': // Fall through case 'X448': // Fall through case 'ECDH': return lazyRequire('internal/crypto/diffiehellman') .asyncDeriveBitsECDH(algorithm, baseKey, length); case 'HKDF': return lazyRequire('internal/crypto/hkdf') .hkdfDeriveBits(algorithm, baseKey, length); case 'PBKDF2': return lazyRequire('internal/crypto/pbkdf2') .pbkdf2DeriveBits(algorithm, baseKey, length); } throw lazyDOMException('Unrecognized name.'); } function getKeyLength({ name, length, hash }) { switch (name) { case 'AES-CTR': case 'AES-CBC': case 'AES-GCM': case 'AES-KW': if (length !== 128 && length !== 192 && length !== 256) throw lazyDOMException('Invalid key length', 'OperationError'); return length; case 'HMAC': if (length === undefined) { switch (hash?.name) { case 'SHA-1': return 160; case 'SHA-256': return 256; case 'SHA-384': return 384; case 'SHA-512': return 512; } } if (typeof length === 'number' && length !== 0) { return length; } throw lazyDOMException('Invalid key length', 'OperationError'); case 'HKDF': case 'PBKDF2': return null; } } async function deriveKey( algorithm, baseKey, derivedKeyAlgorithm, extractable, keyUsages) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); algorithm = normalizeAlgorithm(algorithm); derivedKeyAlgorithm = normalizeAlgorithm(derivedKeyAlgorithm); if (!isCryptoKey(baseKey)) throw new ERR_INVALID_ARG_TYPE('baseKey', 'CryptoKey', baseKey); if (!ArrayPrototypeIncludes(baseKey.usages, 'deriveKey')) { throw lazyDOMException( 'baseKey does not have deriveKey usage', 'InvalidAccessError'); } if (baseKey.algorithm.name !== algorithm.name) throw lazyDOMException('Key algorithm mismatch', 'InvalidAccessError'); validateObject(derivedKeyAlgorithm, 'derivedKeyAlgorithm', { allowArray: true, allowFunction: true, }); validateBoolean(extractable, 'extractable'); validateArray(keyUsages, 'keyUsages'); const length = getKeyLength(derivedKeyAlgorithm); let bits; switch (algorithm.name) { case 'X25519': // Fall through case 'X448': // Fall through case 'ECDH': bits = await lazyRequire('internal/crypto/diffiehellman') .asyncDeriveBitsECDH(algorithm, baseKey, length); break; case 'HKDF': bits = await lazyRequire('internal/crypto/hkdf') .hkdfDeriveBits(algorithm, baseKey, length); break; case 'PBKDF2': bits = await lazyRequire('internal/crypto/pbkdf2') .pbkdf2DeriveBits(algorithm, baseKey, length); break; default: throw lazyDOMException('Unrecognized name.'); } return ReflectApply( importKey, this, ['raw', bits, derivedKeyAlgorithm, extractable, keyUsages], ); } async function exportKeySpki(key) { switch (key.algorithm.name) { case 'RSASSA-PKCS1-v1_5': // Fall through case 'RSA-PSS': // Fall through case 'RSA-OAEP': if (key.type === 'public') { return lazyRequire('internal/crypto/rsa') .rsaExportKey(key, kWebCryptoKeyFormatSPKI); } break; case 'ECDSA': // Fall through case 'ECDH': if (key.type === 'public') { return lazyRequire('internal/crypto/ec') .ecExportKey(key, kWebCryptoKeyFormatSPKI); } break; case 'Ed25519': // Fall through case 'Ed448': // Fall through case 'X25519': // Fall through case 'X448': if (key.type === 'public') { return lazyRequire('internal/crypto/cfrg') .cfrgExportKey(key, kWebCryptoKeyFormatSPKI); } break; } throw lazyDOMException( `Unable to export a raw ${key.algorithm.name} ${key.type} key`, 'InvalidAccessError'); } async function exportKeyPkcs8(key) { switch (key.algorithm.name) { case 'RSASSA-PKCS1-v1_5': // Fall through case 'RSA-PSS': // Fall through case 'RSA-OAEP': if (key.type === 'private') { return lazyRequire('internal/crypto/rsa') .rsaExportKey(key, kWebCryptoKeyFormatPKCS8); } break; case 'ECDSA': // Fall through case 'ECDH': if (key.type === 'private') { return lazyRequire('internal/crypto/ec') .ecExportKey(key, kWebCryptoKeyFormatPKCS8); } break; case 'Ed25519': // Fall through case 'Ed448': // Fall through case 'X25519': // Fall through case 'X448': if (key.type === 'private') { return lazyRequire('internal/crypto/cfrg') .cfrgExportKey(key, kWebCryptoKeyFormatPKCS8); } break; } throw lazyDOMException( `Unable to export a pkcs8 ${key.algorithm.name} ${key.type} key`, 'InvalidAccessError'); } async function exportKeyRaw(key) { switch (key.algorithm.name) { case 'ECDSA': // Fall through case 'ECDH': if (key.type === 'public') { return lazyRequire('internal/crypto/ec') .ecExportKey(key, kWebCryptoKeyFormatRaw); } break; case 'Ed25519': // Fall through case 'Ed448': // Fall through case 'X25519': // Fall through case 'X448': if (key.type === 'public') { return lazyRequire('internal/crypto/cfrg') .cfrgExportKey(key, kWebCryptoKeyFormatRaw); } break; case 'AES-CTR': // Fall through case 'AES-CBC': // Fall through case 'AES-GCM': // Fall through case 'AES-KW': // Fall through case 'HMAC': return key[kKeyObject].export().buffer; } throw lazyDOMException( `Unable to export a raw ${key.algorithm.name} ${key.type} key`, 'InvalidAccessError'); } async function exportKeyJWK(key) { const jwk = key[kKeyObject][kHandle].exportJwk({ key_ops: key.usages, ext: key.extractable, }, true); switch (key.algorithm.name) { case 'RSASSA-PKCS1-v1_5': jwk.alg = normalizeHashName( key.algorithm.hash.name, normalizeHashName.kContextJwkRsa); return jwk; case 'RSA-PSS': jwk.alg = normalizeHashName( key.algorithm.hash.name, normalizeHashName.kContextJwkRsaPss); return jwk; case 'RSA-OAEP': jwk.alg = normalizeHashName( key.algorithm.hash.name, normalizeHashName.kContextJwkRsaOaep); return jwk; case 'ECDSA': // Fall through case 'ECDH': jwk.crv ||= key.algorithm.namedCurve; return jwk; case 'X25519': // Fall through case 'X448': jwk.crv ||= key.algorithm.name; return jwk; case 'Ed25519': // Fall through case 'Ed448': jwk.crv ||= key.algorithm.name; jwk.alg = 'EdDSA'; return jwk; case 'AES-CTR': // Fall through case 'AES-CBC': // Fall through case 'AES-GCM': // Fall through case 'AES-KW': jwk.alg = lazyRequire('internal/crypto/aes') .getAlgorithmName(key.algorithm.name, key.algorithm.length); return jwk; case 'HMAC': jwk.alg = normalizeHashName( key.algorithm.hash.name, normalizeHashName.kContextJwkHmac); return jwk; default: // Fall through } throw lazyDOMException('Not yet supported', 'NotSupportedError'); } async function exportKey(format, key) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); validateString(format, 'format'); validateOneOf(format, 'format', kExportFormats); if (!isCryptoKey(key)) throw new ERR_INVALID_ARG_TYPE('key', 'CryptoKey', key); if (!key.extractable) throw lazyDOMException('key is not extractable', 'InvalidAccessException'); switch (format) { case 'spki': return exportKeySpki(key); case 'pkcs8': return exportKeyPkcs8(key); case 'jwk': return exportKeyJWK(key); case 'raw': return exportKeyRaw(key); } throw lazyDOMException( 'Export format is unsupported', 'NotSupportedError'); } async function importGenericSecretKey( { name, length }, format, keyData, extractable, keyUsages) { const usagesSet = new SafeSet(keyUsages); if (extractable) throw lazyDOMException(`${name} keys are not extractable`, 'SyntaxError'); if (hasAnyNotIn(usagesSet, ['deriveKey', 'deriveBits'])) { throw lazyDOMException( `Unsupported key usage for a ${name} key`, 'SyntaxError'); } switch (format) { case 'raw': { if (hasAnyNotIn(usagesSet, ['deriveKey', 'deriveBits'])) { throw lazyDOMException( `Unsupported key usage for a ${name} key`, 'SyntaxError'); } const checkLength = keyData.byteLength * 8; if (checkLength === 0 || length === 0) throw lazyDOMException('Zero-length key is not supported', 'DataError'); // The Web Crypto spec allows for key lengths that are not multiples of // 8. We don't. Our check here is stricter than that defined by the spec // in that we require that algorithm.length match keyData.length * 8 if // algorithm.length is specified. if (length !== undefined && length !== checkLength) { throw lazyDOMException('Invalid key length', 'DataError'); } const keyObject = createSecretKey(keyData); return new InternalCryptoKey(keyObject, { name }, keyUsages, false); } } throw lazyDOMException( `Unable to import ${name} key with format ${format}`, 'NotSupportedError'); } async function importKey( format, keyData, algorithm, extractable, keyUsages) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); validateString(format, 'format'); validateOneOf(format, 'format', kExportFormats); if (format !== 'jwk') keyData = getArrayBufferOrView(keyData, 'keyData'); algorithm = normalizeAlgorithm(algorithm); validateBoolean(extractable, 'extractable'); validateArray(keyUsages, 'keyUsages'); switch (algorithm.name) { case 'RSASSA-PKCS1-v1_5': // Fall through case 'RSA-PSS': // Fall through case 'RSA-OAEP': return lazyRequire('internal/crypto/rsa') .rsaImportKey(format, keyData, algorithm, extractable, keyUsages); case 'ECDSA': // Fall through case 'ECDH': return lazyRequire('internal/crypto/ec') .ecImportKey(format, keyData, algorithm, extractable, keyUsages); case 'Ed25519': // Fall through case 'Ed448': // Fall through case 'X25519': // Fall through case 'X448': return lazyRequire('internal/crypto/cfrg') .cfrgImportKey(format, keyData, algorithm, extractable, keyUsages); case 'HMAC': return lazyRequire('internal/crypto/mac') .hmacImportKey(format, keyData, algorithm, extractable, keyUsages); case 'AES-CTR': // Fall through case 'AES-CBC': // Fall through case 'AES-GCM': // Fall through case 'AES-KW': return lazyRequire('internal/crypto/aes') .aesImportKey(algorithm, format, keyData, extractable, keyUsages); case 'HKDF': // Fall through case 'PBKDF2': return importGenericSecretKey( algorithm, format, keyData, extractable, keyUsages); } throw lazyDOMException('Unrecognized name.', 'NotSupportedError'); } // subtle.wrapKey() is essentially a subtle.exportKey() followed // by a subtle.encrypt(). async function wrapKey(format, key, wrappingKey, algorithm) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); algorithm = normalizeAlgorithm(algorithm); let keyData = await ReflectApply(exportKey, this, [format, key]); if (format === 'jwk') { if (keyData == null || typeof keyData !== 'object') throw lazyDOMException('Invalid exported JWK key', 'DataError'); const ec = new TextEncoder(); const raw = JSONStringify(keyData); keyData = ec.encode(raw + StringPrototypeRepeat(' ', 8 - (raw.length % 8))); } return cipherOrWrap( kWebCryptoCipherEncrypt, algorithm, wrappingKey, keyData, 'wrapKey'); } // subtle.unwrapKey() is essentially a subtle.decrypt() followed // by a subtle.importKey(). async function unwrapKey( format, wrappedKey, unwrappingKey, unwrapAlgo, unwrappedKeyAlgo, extractable, keyUsages) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); wrappedKey = getArrayBufferOrView(wrappedKey, 'wrappedKey'); unwrapAlgo = normalizeAlgorithm(unwrapAlgo); let keyData = await cipherOrWrap( kWebCryptoCipherDecrypt, unwrapAlgo, unwrappingKey, wrappedKey, 'unwrapKey'); if (format === 'jwk') { // The fatal: true option is only supported in builds that have ICU. const options = process.versions.icu !== undefined ? { fatal: true } : undefined; const dec = new TextDecoder('utf-8', options); try { keyData = JSONParse(dec.decode(keyData)); } catch { throw lazyDOMException('Invalid imported JWK key', 'DataError'); } } return ReflectApply( importKey, this, [format, keyData, unwrappedKeyAlgo, extractable, keyUsages], ); } function signVerify(algorithm, key, data, signature) { algorithm = normalizeAlgorithm(algorithm); if (!isCryptoKey(key)) throw new ERR_INVALID_ARG_TYPE('key', 'CryptoKey', key); data = getArrayBufferOrView(data, 'data'); let usage = 'sign'; if (signature !== undefined) { signature = getArrayBufferOrView(signature, 'signature'); usage = 'verify'; } if (!ArrayPrototypeIncludes(key.usages, usage) || algorithm.name !== key.algorithm.name) { throw lazyDOMException( `Unable to use this key to ${usage}`, 'InvalidAccessError'); } switch (algorithm.name) { case 'RSA-PSS': // Fall through case 'RSASSA-PKCS1-v1_5': return lazyRequire('internal/crypto/rsa') .rsaSignVerify(key, data, algorithm, signature); case 'ECDSA': return lazyRequire('internal/crypto/ec') .ecdsaSignVerify(key, data, algorithm, signature); case 'Ed25519': // Fall through case 'Ed448': // Fall through return lazyRequire('internal/crypto/cfrg') .eddsaSignVerify(key, data, algorithm, signature); case 'HMAC': return lazyRequire('internal/crypto/mac') .hmacSignVerify(key, data, algorithm, signature); } throw lazyDOMException('Unrecognized named.', 'NotSupportedError'); } async function sign(algorithm, key, data) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); return signVerify(algorithm, key, data); } async function verify(algorithm, key, signature, data) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); return signVerify(algorithm, key, data, signature); } async function cipherOrWrap(mode, algorithm, key, data, op) { algorithm = normalizeAlgorithm(algorithm); // We use a Node.js style error here instead of a DOMException because // the WebCrypto spec is not specific what kind of error is to be thrown // in this case. Both Firefox and Chrome throw simple TypeErrors here. if (!isCryptoKey(key)) throw new ERR_INVALID_ARG_TYPE('key', 'CryptoKey', key); // The key algorithm and cipher algorithm must match, and the // key must have the proper usage. if (key.algorithm.name !== algorithm.name || !ArrayPrototypeIncludes(key.usages, op)) { throw lazyDOMException( 'The requested operation is not valid for the provided key', 'InvalidAccessError'); } // For the Web Crypto API, the input data can be any ArrayBuffer, // TypedArray, or DataView. data = getArrayBufferOrView(data, 'data'); // While WebCrypto allows for larger input buffer sizes, we limit // those to sizes that can fit within uint32_t because of limitations // in the OpenSSL API. validateMaxBufferLength(data, 'data'); switch (algorithm.name) { case 'RSA-OAEP': return lazyRequire('internal/crypto/rsa') .rsaCipher(mode, key, data, algorithm); case 'AES-CTR': // Fall through case 'AES-CBC': // Fall through case 'AES-GCM': return lazyRequire('internal/crypto/aes') .aesCipher(mode, key, data, algorithm); case 'AES-KW': if (op === 'wrapKey' || op === 'unwrapKey') { return lazyRequire('internal/crypto/aes') .aesCipher(mode, key, data, algorithm); } } throw lazyDOMException('Unrecognized name.', 'NotSupportedError'); } async function encrypt(algorithm, key, data) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); return cipherOrWrap(kWebCryptoCipherEncrypt, algorithm, key, data, 'encrypt'); } async function decrypt(algorithm, key, data) { if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto'); return cipherOrWrap(kWebCryptoCipherDecrypt, algorithm, key, data, 'decrypt'); } // The SubtleCrypto and Crypto classes are defined as part of the // Web Crypto API standard: https://www.w3.org/TR/WebCryptoAPI/ class SubtleCrypto { constructor() { throw new ERR_ILLEGAL_CONSTRUCTOR(); } } const subtle = ReflectConstruct(function() {}, [], SubtleCrypto); class Crypto { constructor() { throw new ERR_ILLEGAL_CONSTRUCTOR(); } get subtle() { if (this !== crypto) throw new ERR_INVALID_THIS('Crypto'); return subtle; } } const crypto = ReflectConstruct(function() {}, [], Crypto); function getRandomValues(array) { if (this !== crypto) throw new ERR_INVALID_THIS('Crypto'); return ReflectApply(_getRandomValues, this, arguments); } ObjectDefineProperties( Crypto.prototype, { [SymbolToStringTag]: { __proto__: null, enumerable: false, configurable: true, writable: false, value: 'Crypto', }, subtle: kEnumerableProperty, getRandomValues: { __proto__: null, enumerable: true, configurable: true, writable: true, value: getRandomValues, }, randomUUID: { __proto__: null, enumerable: true, configurable: true, writable: true, value: randomUUID, }, CryptoKey: { __proto__: null, enumerable: true, configurable: true, writable: true, value: CryptoKey, } }); ObjectDefineProperties( SubtleCrypto.prototype, { [SymbolToStringTag]: { __proto__: null, enumerable: false, configurable: true, writable: false, value: 'SubtleCrypto', }, encrypt: { __proto__: null, enumerable: true, configurable: true, writable: true, value: encrypt, }, decrypt: { __proto__: null, enumerable: true, configurable: true, writable: true, value: decrypt, }, sign: { __proto__: null, enumerable: true, configurable: true, writable: true, value: sign, }, verify: { __proto__: null, enumerable: true, configurable: true, writable: true, value: verify, }, digest: { __proto__: null, enumerable: true, configurable: true, writable: true, value: digest, }, generateKey: { __proto__: null, enumerable: true, configurable: true, writable: true, value: generateKey, }, deriveKey: { __proto__: null, enumerable: true, configurable: true, writable: true, value: deriveKey, }, deriveBits: { __proto__: null, enumerable: true, configurable: true, writable: true, value: deriveBits, }, importKey: { __proto__: null, enumerable: true, configurable: true, writable: true, value: importKey, }, exportKey: { __proto__: null, enumerable: true, configurable: true, writable: true, value: exportKey, }, wrapKey: { __proto__: null, enumerable: true, configurable: true, writable: true, value: wrapKey, }, unwrapKey: { __proto__: null, enumerable: true, configurable: true, writable: true, value: unwrapKey, } }); module.exports = { Crypto, CryptoKey, SubtleCrypto, crypto, }; |