diff --git a/phpseclib/File/X509.php b/phpseclib/File/X509.php
index f141ee9c..90e7e3c4 100644
--- a/phpseclib/File/X509.php
+++ b/phpseclib/File/X509.php
@@ -1351,6 +1351,8 @@ class X509
             case 'rsaEncryption':
                 $key = RSA::loadFormat('PKCS8', $publicKey);
                 switch ($signatureAlgorithm) {
+                    case 'id-RSASSA-PSS':
+                        break;
                     case 'md2WithRSAEncryption':
                     case 'md5WithRSAEncryption':
                     case 'sha1WithRSAEncryption':
diff --git a/tests/Unit/File/X509/CRLTest.php b/tests/Unit/File/X509/CRLTest.php
index 4d6cc298..4ca62eb4 100644
--- a/tests/Unit/File/X509/CRLTest.php
+++ b/tests/Unit/File/X509/CRLTest.php
@@ -62,4 +62,33 @@ class CRLTest extends PhpseclibTestCase
         $this->assertArrayHasKey('parameters', $r['signatureAlgorithm']);
         $this->assertTrue($x509->validateSignature());
     }
+
+    public function testPSSSigWithPKCS1Cert()
+    {
+        $x509 = new X509();
+        $x509->loadCA('-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----');
+        $x509->loadCRL('-----BEGIN X509 CRL-----
+MIIBVDCBiTBCBgkqhkiG9w0BAQowNaANMAsGCWCGSAFlAwQCAaEaMBgGCSqGSIb3
+DQEBCDALBglghkgBZQMEAgGiAwIBIKMDAgEBMBwxGjAYBgNVBAoMEXBocHNlY2xp
+YiBDQSBjZXJ0Fw0yMjA5MjMyMjI1MTdaMBYwFAIDenp6Fw0yMzA5MjMyMjI1MTda
+MEIGCSqGSIb3DQEBCjA1oA0wCwYJYIZIAWUDBAIBoRowGAYJKoZIhvcNAQEIMAsG
+CWCGSAFlAwQCAaIDAgEgowMCAQEDgYEAZcN+8iKHAZiARPlx3rj1NpRoanrljSsH
+F5C4wjjz936D0o3lLgSGwfDLKOBI8wu5BVYQMnBVtpI6be+QcTjrFbsbuB9IonG9
+uY1UHwoR+HohPes2wPUOV931ds6TufSxxcGgvwdaMacBfj/AD6M2ylxtqXY4EtVc
+xbyT0osik+w=
+-----END X509 CRL-----');
+        $this->assertTrue($x509->validateSignature());
+    }
 }