diff --git a/phpseclib/Crypt/DSA/Formats/Keys/PKCS8.php b/phpseclib/Crypt/DSA/Formats/Keys/PKCS8.php
index ab58c698..ff270595 100644
--- a/phpseclib/Crypt/DSA/Formats/Keys/PKCS8.php
+++ b/phpseclib/Crypt/DSA/Formats/Keys/PKCS8.php
@@ -141,7 +141,7 @@ abstract class PKCS8 extends Progenitor
         $params = ASN1::encodeDER($params, Maps\DSAParams::MAP);
         $params = new ASN1\Element($params);
         $key = ASN1::encodeDER($x, Maps\DSAPublicKey::MAP);
-        return self::wrapPrivateKey($key, [], $params, $password, $options);
+        return self::wrapPrivateKey($key, [], $params, $password, null, '', $options);
     }
 
     /**
diff --git a/phpseclib/Crypt/RSA/Formats/Keys/PKCS8.php b/phpseclib/Crypt/RSA/Formats/Keys/PKCS8.php
index 0bbdfe6e..206edccd 100644
--- a/phpseclib/Crypt/RSA/Formats/Keys/PKCS8.php
+++ b/phpseclib/Crypt/RSA/Formats/Keys/PKCS8.php
@@ -128,7 +128,7 @@ abstract class PKCS8 extends Progenitor
     {
         $key = PKCS1::savePrivateKey($n, $e, $d, $primes, $exponents, $coefficients);
         $key = ASN1::extractBER($key);
-        return self::wrapPrivateKey($key, [], null, $password, $options);
+        return self::wrapPrivateKey($key, [], null, $password, null, '', $options);
     }
 
     /**
diff --git a/phpseclib/Crypt/RSA/Formats/Keys/PSS.php b/phpseclib/Crypt/RSA/Formats/Keys/PSS.php
index be7224e5..544ae845 100644
--- a/phpseclib/Crypt/RSA/Formats/Keys/PSS.php
+++ b/phpseclib/Crypt/RSA/Formats/Keys/PSS.php
@@ -181,7 +181,7 @@ abstract class PSS extends Progenitor
         $key = PKCS1::savePrivateKey($n, $e, $d, $primes, $exponents, $coefficients);
         $key = ASN1::extractBER($key);
         $params = self::savePSSParams($options);
-        return self::wrapPrivateKey($key, [], $params, $password, $options);
+        return self::wrapPrivateKey($key, [], $params, $password, null, '', $options);
     }
 
     /**
diff --git a/tests/Unit/Crypt/RSA/CreateKeyTest.php b/tests/Unit/Crypt/RSA/CreateKeyTest.php
index b6c030be..fe3f59ef 100644
--- a/tests/Unit/Crypt/RSA/CreateKeyTest.php
+++ b/tests/Unit/Crypt/RSA/CreateKeyTest.php
@@ -8,6 +8,7 @@
 
 use phpseclib3\Crypt\RSA;
 use phpseclib3\Crypt\RSA\Formats\Keys\PKCS1;
+use phpseclib3\Crypt\RSA\Formats\Keys\PKCS8;
 use phpseclib3\Crypt\RSA\PrivateKey;
 use phpseclib3\Crypt\RSA\PublicKey;
 
@@ -66,4 +67,13 @@ class Unit_Crypt_RSA_CreateKeyTestRSA extends PhpseclibTestCase
 
         RSA::useBestEngine();
     }
+
+    public function test3DESPKCS8Encryption()
+    {
+        $key = RSA::createKey(768)
+            ->withPassword('demo')
+            ->toString('PKCS8', ['encryptionAlgorithm' => 'pbeWithSHAAnd3-KeyTripleDES-CBC']);
+        $actual = PKCS8::extractEncryptionAlgorithm($key)['algorithm'];
+        $this->assertSame($actual, 'pbeWithSHAAnd3-KeyTripleDES-CBC');
+    }
 }