crypto: use kEmptyObject

PR-URL: #43159
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>

Author: LiviaMedeiros

lib/internal/crypto/keygen.js

@@ -38,7 +38,10 @@ const {
   kAesKeyLengths,
 } = require('internal/crypto/util');
 
-const { customPromisifyArgs } = require('internal/util');
+const {
+  customPromisifyArgs,
+  kEmptyObject,
+} = require('internal/util');
 
 const {
   validateFunction,
@@ -119,7 +122,7 @@ function handleError(ret) {
   };
 }
 
-function parseKeyEncoding(keyType, options = {}) {
+function parseKeyEncoding(keyType, options = kEmptyObject) {
   const { publicKeyEncoding, privateKeyEncoding } = options;
 
   let publicFormat, publicType;

lib/internal/crypto/random.js

@@ -26,6 +26,7 @@ const {
 } = internalBinding('crypto');
 
 const {
+  kEmptyObject,
   lazyDOMException,
 } = require('internal/util');
 
@@ -399,7 +400,7 @@ function randomUUID(options) {
     validateObject(options, 'options');
   const {
     disableEntropyCache = false,
-  } = options || {};
+  } = options || kEmptyObject;
 
   validateBoolean(disableEntropyCache, 'options.disableEntropyCache');
 
@@ -464,7 +465,7 @@ function generatePrime(size, options, callback) {
   validateInt32(size, 'size', 1);
   if (typeof options === 'function') {
     callback = options;
-    options = {};
+    options = kEmptyObject;
   }
   validateFunction(callback, 'callback');
 
@@ -482,7 +483,7 @@ function generatePrime(size, options, callback) {
   job.run();
 }
 
-function generatePrimeSync(size, options = {}) {
+function generatePrimeSync(size, options = kEmptyObject) {
   validateInt32(size, 'size', 1);
 
   const job = createRandomPrimeJob(kCryptoJobSync, size, options);
@@ -506,7 +507,7 @@ function unsignedBigIntToBuffer(bigint, name) {
   return Buffer.from(padded, 'hex');
 }
 
-function checkPrime(candidate, options = {}, callback) {
+function checkPrime(candidate, options = kEmptyObject, callback) {
   if (typeof candidate === 'bigint')
     candidate = unsignedBigIntToBuffer(candidate, 'candidate');
   if (!isAnyArrayBuffer(candidate) && !isArrayBufferView(candidate)) {
@@ -524,7 +525,7 @@ function checkPrime(candidate, options = {}, callback) {
   }
   if (typeof options === 'function') {
     callback = options;
-    options = {};
+    options = kEmptyObject;
   }
   validateFunction(callback, 'callback');
   validateObject(options, 'options');
@@ -539,7 +540,7 @@ function checkPrime(candidate, options = {}, callback) {
   job.run();
 }
 
-function checkPrimeSync(candidate, options = {}) {
+function checkPrimeSync(candidate, options = kEmptyObject) {
   if (typeof candidate === 'bigint')
     candidate = unsignedBigIntToBuffer(candidate, 'candidate');
   if (!isAnyArrayBuffer(candidate) && !isArrayBufferView(candidate)) {

lib/internal/crypto/x509.js

@@ -23,6 +23,7 @@ const {
 
 const {
   customInspectSymbol: kInspect,
+  kEmptyObject,
 } = require('internal/util');
 
 const {
@@ -64,7 +65,7 @@ function isX509Certificate(value) {
   return value[kInternalState] !== undefined;
 }
 
-function getFlags(options = {}) {
+function getFlags(options = kEmptyObject) {
   validateObject(options, 'options');
   const {
     subject = 'default',  // Can be 'default', 'always', or 'never'