From 8b8d9ac42323d186aff3bf312f001f2b42d21248 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@php.net>
Date: Mon, 26 Jan 2015 19:24:48 -0600
Subject: [PATCH] Tests/RC2: add test vectors

---
 tests/Unit/Crypt/RC2Test.php | 46 +++++++++++++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/tests/Unit/Crypt/RC2Test.php b/tests/Unit/Crypt/RC2Test.php
index fb70ce31..adcb592d 100644
--- a/tests/Unit/Crypt/RC2Test.php
+++ b/tests/Unit/Crypt/RC2Test.php
@@ -7,9 +7,38 @@
 
 require_once 'Crypt/RC2.php';
 
-// this test is just confirming RC2's key expansion
 class Unit_Crypt_RC2Test extends PhpseclibTestCase
 {
+    var $engines = array(
+        CRYPT_ENGINE_INTERNAL => 'internal',
+        CRYPT_ENGINE_MCRYPT => 'mcrypt',
+        CRYPT_ENGINE_OPENSSL => 'OpenSSL',
+    );
+
+    public function engineVectors()
+    {
+        // tests from https://tools.ietf.org/html/rfc2268#page-8
+        $tests = array(
+            // key, effective key length, plaintext, ciphertext
+            array('0000000000000000', 63, '0000000000000000', 'ebb773f993278eff'),
+            array('ffffffffffffffff', 64, 'ffffffffffffffff', '278b27e42e2f0d49'),
+            array('3000000000000000', 64, '1000000000000001', '30649edf9be7d2c2'),
+            array('88', 64, '0000000000000000', '61a8a244adacccf0'),
+            array('88bca90e90875a', 64, '0000000000000000', '6ccf4308974c267f'),
+            array('88bca90e90875a7f0f79c384627bafb2', 64, '0000000000000000', '1a807d272bbe5db1'),
+            array('88bca90e90875a7f0f79c384627bafb2', 128, '0000000000000000', '2269552ab0f85ca6'),
+            array('88bca90e90875a7f0f79c384627bafb216f80a6f85920584c42fceb0 be255daf1e', 129, '0000000000000000', '5b78d3a43dfff1f1')
+        );
+        $result = array();
+        // @codingStandardsIgnoreStart
+        foreach ($this->engines as $engine => $engineName) 
+        foreach ($tests as $test)
+            $result[] = array($engine, $engineName, $test[0], $test[1], $test[2], $test[3]);
+        // @codingStandardsIgnoreEnd
+        return $result;
+    }
+
+    // this test is just confirming RC2's key expansion
     public function testEncryptPadding()
     {
         $rc2 = new Crypt_RC2(CRYPT_MODE_ECB);
@@ -71,4 +100,19 @@ class Unit_Crypt_RC2Test extends PhpseclibTestCase
             self::markTestSkipped('Unable to initialize OpenSSL engine');
         }
     }
+
+    public function testVectors($engine, $engineName, $key, $keyLen, $plaintext, $ciphertext)
+    {
+        $rc2 = new Crypt_RC2();
+        $rc2->disablePadding();
+        $rc2->setKeyLength($keyLen);
+        $rc2->setKey(pack('H*', $key)); // could also do $rc2->setKey(pack('H*', $key), $keyLen)
+        if (!$rc2->isValidEngine($engine)) {
+            self::markTestSkipped('Unable to initialize ' . $engineName . ' engine');
+        }
+        $rc2->setPreferredEngine($engine);
+
+        $result = bin2hex($rc2->encrypt(pack('H*', $plaintext)));
+        $this->assertEquals($result, $ciphertext, "Failed asserting that $plaintext yielded expected output in $engineName engine");
+    }
 }