Hash: add __toString() method

phpseclib/Crypt/Common/AsymmetricKey.php

@@ -388,7 +388,7 @@ abstract class AsymmetricKey
      */
     public function getHash()
     {
-       return $this->hash->getHash();
+       return clone $this->hash;
     }
 
     /**

phpseclib/Crypt/Hash.php

@@ -1462,4 +1462,12 @@ class Hash
 
         return $temp;
     }
+
+    /**
+     *  __toString() magic method
+     */
+    public function __toString()
+    {
+        return $this->getHash();
+    }
 }

phpseclib/Crypt/RSA.php

@@ -669,7 +669,7 @@ abstract class RSA extends AsymmetricKey
      */
     public function getMGFHash()
     {
-       return $this->mgfHash->getHash();
+       return clone $this->mgfHash;
     }
 
     /**

tests/Unit/Crypt/RSA/ModeTest.php

@@ -170,17 +170,17 @@ HERE;
             ->withSaltLength(5)
             ->withMGFHash('sha512');
 
-        $this->assertSame('sha1', $rsa->getHash());
+        $this->assertEquals('sha1', $rsa->getHash());
         $this->assertSame(5, $rsa->getSaltLength());
-        $this->assertSame('sha512', $rsa->getMGFHash());
+        $this->assertEquals('sha512', $rsa->getMGFHash());
 
         $rsa = $rsa
             ->withHash('sha512')
             ->withSaltLength(6)
             ->withMGFHash('sha1');
 
-        $this->assertSame('sha512', $rsa->getHash());
+        $this->assertEquals('sha512', $rsa->getHash());
         $this->assertSame(6, $rsa->getSaltLength());
-        $this->assertSame('sha1', $rsa->getMGFHash());
+        $this->assertEquals('sha1', $rsa->getMGFHash());
     }
 }