diff --git a/phpseclib/Crypt/Blowfish.php b/phpseclib/Crypt/Blowfish.php
index bd46ecf7..ed7d7aef 100644
--- a/phpseclib/Crypt/Blowfish.php
+++ b/phpseclib/Crypt/Blowfish.php
@@ -724,7 +724,7 @@ class Blowfish extends BlockCipher
      * @param int[] $p
      * @return int[]
      */
-    function _encryptBlockHelperFast32($x0, $x1, $sbox0, $sbox1, $sbox2, $sbox3, $p)
+    public function _encryptBlockHelperFast32($x0, $x1, $sbox0, $sbox1, $sbox2, $sbox3, $p)
     {
         $x0 ^= $p[0];
         $x1 ^= ((($sbox0[(($x0 & 0xFF000000) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[1];
@@ -744,7 +744,7 @@ class Blowfish extends BlockCipher
         $x1 ^= ((($sbox0[(($x0 & 0xFF000000) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[15];
         $x0 ^= ((($sbox0[(($x1 & 0xFF000000) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[16];
 
-        return array($x1 & 0xFFFFFFFF ^ $p[17], $x0 & 0xFFFFFFFF);
+        return [$x1 & 0xFFFFFFFF ^ $p[17], $x0 & 0xFFFFFFFF];
     }
 
     /**
diff --git a/tests/Unit/Math/BigInteger/TestCase.php b/tests/Unit/Math/BigInteger/TestCase.php
index ff4a8e14..c37223f1 100644
--- a/tests/Unit/Math/BigInteger/TestCase.php
+++ b/tests/Unit/Math/BigInteger/TestCase.php
@@ -507,7 +507,7 @@ abstract class TestCase extends PhpseclibTestCase
         }
     }
 
-    public function testHexWithNewLines()
+    public function testHexWithNewLines(): void
     {
         $x = $this->getInstance('0xE932AC92252F585B3A80A4DD76A897C8B7652952FE788F6EC8DD640587A1EE5647670A8AD
 4C2BE0F9FA6E49C605ADF77B5174230AF7BD50E5D6D6D6D28CCF0A886A514CC72E51D209CC7