util: add util.types.isKeyObject and util.types.isCryptoKey

closes #38611

PR-URL: https://github.com/nodejs/node/pull/38619
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

2 files changed, 39 insertions, 2 deletions

diff --git a/lib/internal/crypto/keys.js b/lib/internal/crypto/keys.js
index cc5b00a16ee..c24b2d14eb5 100644
--- a/lib/internal/crypto/keys.js
+++ b/lib/internal/crypto/keys.js
@@ -639,8 +639,8 @@ function createPrivateKey(key) {
   return new PrivateKeyObject(handle);
 }
 
-function isKeyObject(key) {
-  return key instanceof KeyObject;
+function isKeyObject(obj) {
+  return obj != null && obj[kKeyType] !== undefined;
 }
 
 // Our implementation of CryptoKey is a simple wrapper around a KeyObject
diff --git a/lib/internal/util/types.js b/lib/internal/util/types.js
index 6f5309a41c3..aca7dbc4b2f 100644
--- a/lib/internal/util/types.js
+++ b/lib/internal/util/types.js
@@ -2,6 +2,7 @@
 
 const {
   ArrayBufferIsView,
+  ObjectDefineProperties,
   TypedArrayPrototypeGetSymbolToStringTag,
 } = primordials;
 
@@ -69,3 +70,39 @@ module.exports = {
   isBigInt64Array,
   isBigUint64Array
 };
+
+let isCryptoKey;
+let isKeyObject;
+
+ObjectDefineProperties(module.exports, {
+  isKeyObject: {
+    configurable: false,
+    enumerable: true,
+    value(obj) {
+      if (!process.versions.openssl) {
+        return false;
+      }
+
+      if (!isKeyObject) {
+        ({ isKeyObject } = require('internal/crypto/keys'));
+      }
+
+      return isKeyObject(obj);
+    }
+  },
+  isCryptoKey: {
+    configurable: false,
+    enumerable: true,
+    value(obj) {
+      if (!process.versions.openssl) {
+        return false;
+      }
+
+      if (!isCryptoKey) {
+        ({ isCryptoKey } = require('internal/crypto/keys'));
+      }
+
+      return isCryptoKey(obj);
+    }
+  }
+});