1 files changed, 132 insertions, 0 deletions
diff --git a/vendor/phpseclib/phpseclib2_compat/src/Crypt/RC2.php b/vendor/phpseclib/phpseclib2_compat/src/Crypt/RC2.php
new file mode 100644
index 000000000..b23f73bca
--- /dev/null
+++ b/vendor/phpseclib/phpseclib2_compat/src/Crypt/RC2.php
@@ -0,0 +1,132 @@
+<?php
+
+/**
+ * Pure-PHP implementation of RC2.
+ *
+ * Uses mcrypt, if available, and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * Useful resources are as follows:
+ *
+ *  - {@link http://tools.ietf.org/html/rfc2268}
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $rc2 = new \phpseclib\Crypt\RC2();
+ *
+ *    $rc2->setKey('abcdefgh');
+ *
+ *    $plaintext = str_repeat('a', 1024);
+ *
+ *    echo $rc2->decrypt($rc2->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category Crypt
+ * @package  RC2
+ * @author   Patrick Monnerat <pm@datasphere.ch>
+ * @license  http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link     http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of RC2.
+ *
+ * @package RC2
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class RC2 extends Base
+{
+    /**
+     * Default Constructor.
+     *
+     * Determines whether or not the mcrypt extension should be used.
+     *
+     * $mode could be:
+     *
+     * - self::MODE_ECB
+     *
+     * - self::MODE_CBC
+     *
+     * - self::MODE_CTR
+     *
+     * - self::MODE_CFB
+     *
+     * - self::MODE_OFB
+     *
+     * If not explicitly set, self::MODE_CBC will be used.
+     *
+     * @param int $mode
+     * @access public
+     */
+    public function __construct($mode = self::MODE_CBC)
+    {
+        parent::__construct($mode);
+        $this->key_length = 8;
+    }
+
+    /**
+     * Turns key lengths, be they valid or invalid, to valid key lengths
+     *
+     * @param int $length
+     * @access private
+     * @return int
+     */
+    protected function calculateNewKeyLength($length)
+    {
+        switch (true) {
+            case $length < 8:
+                return 8;
+            case $length > 1024:
+                return 1024;
+        }
+
+        return $length;
+    }
+
+    /**
+     * Setup IV and key
+     */
+    protected function setup()
+    {
+        if ($this->explicit_key_length) {
+            $this->cipher->setKeyLength($this->key_length);
+        }
+        $this->cipher->setKey($this->key);
+        if (!$this->ivSet) {
+            $this->setIV('');
+        }
+        $this->changed = false;
+    }
+
+    /**
+     * Sets the key.
+     *
+     * Keys can be of any length. RC2, itself, uses 8 to 1024 bit keys (eg.
+     * strlen($key) <= 128), however, we only use the first 128 bytes if $key
+     * has more then 128 bytes in it, and set $key to a single null byte if
+     * it is empty.
+     *
+     * If the key is not explicitly set, it'll be assumed to be a single
+     * null byte.
+     *
+     * @see \phpseclib\Crypt\Base::setKey()
+     * @access public
+     * @param string $key
+     * @param int $t1 optional Effective key length in bits.
+     */
+    function setKey($key, $t1 = 0)
+    {
+        parent::setKey($key);
+        if ($t1) {
+            $this->setKeyLength($t1);
+        }
+    }
+}
+\ No newline at end of file