sop / gcm

examples/encrypt.php

Indentation +1 added lines, -1 removed lines

@@ -23,4 +23,4 @@
 // print the ciphertext along with the authentication tag
 // and the initialization vector
 echo bin2hex($ciphertext) . "\n" . bin2hex($auth_tag) . "\n" . bin2hex($iv) .
-     "\n";
+	 "\n";

examples/explicit-decrypt.php

Indentation +1 added lines, -1 removed lines

@@ -14,7 +14,7 @@
 $key = "012345678901234567890123";
 // read ciphertext, authentication tag and initialization vector from the stdin
 list($ciphertext, $auth_tag, $iv) = array_map("hex2bin",
-    file("php://stdin", FILE_IGNORE_NEW_LINES));
+	file("php://stdin", FILE_IGNORE_NEW_LINES));
 // configure GCM object with AES-192 cipher and 13-bytes long authentication tag
 $gcm = new GCM(new AES192Cipher(), 13);
 // decrypt and authenticate

examples/decrypt.php

Indentation +1 added lines, -1 removed lines

@@ -16,7 +16,7 @@
 $key = "some 128 bit key";
 // read ciphertext, authentication tag and initialization vector from the stdin
 list($ciphertext, $auth_tag, $iv) = array_map("hex2bin",
-    file("php://stdin", FILE_IGNORE_NEW_LINES));
+	file("php://stdin", FILE_IGNORE_NEW_LINES));
 // decrypt and authenticate
 $plaintext = AESGCM::decrypt($ciphertext, $auth_tag, $aad, $key, $iv);
 echo "$plaintext\n";

examples/explicit-encrypt.php

Indentation +1 added lines, -1 removed lines

@@ -23,4 +23,4 @@
 // print the ciphertext along with the authentication tag
 // and the initialization vector
 echo bin2hex($ciphertext) . "\n" . bin2hex($auth_tag) . "\n" . bin2hex($iv) .
-     "\n";
+	 "\n";

lib/GCM/Cipher/Cipher.php

Indentation +8 added lines, -8 removed lines

@@ -7,12 +7,12 @@
  */
 interface Cipher
 {
-    /**
-     * Encrypt data.
-     *
-     * @param string $data Data to encrypt
-     * @param string $key Encryption key
-     * @return string Encrypted data
-     */
-    public function encrypt($data, $key);
+	/**
+	 * Encrypt data.
+	 *
+	 * @param string $data Data to encrypt
+	 * @param string $key Encryption key
+	 * @return string Encrypted data
+	 */
+	public function encrypt($data, $key);
 }

lib/GCM/Cipher/AES/AESCipher.php

Indentation +78 added lines, -78 removed lines

@@ -9,87 +9,87 @@
  */
 abstract class AESCipher implements Cipher
 {
-    /**
-     * Mapping from key size in bits to AES cipher implementation class name.
-     *
-     * @internal
-     *
-     * @var array
-     */
-    const MAP_KEYSIZE_TO_CLS = array(
-        /* @formatter:off */
-        128 => AES128Cipher::class,
-        192 => AES192Cipher::class,
-        256 => AES256Cipher::class
-        /* @formatter:on */
-    );
+	/**
+	 * Mapping from key size in bits to AES cipher implementation class name.
+	 *
+	 * @internal
+	 *
+	 * @var array
+	 */
+	const MAP_KEYSIZE_TO_CLS = array(
+		/* @formatter:off */
+		128 => AES128Cipher::class,
+		192 => AES192Cipher::class,
+		256 => AES256Cipher::class
+		/* @formatter:on */
+	);
     
-    /**
-     * Get the cipher method name recognized by OpenSSL.
-     *
-     * @return string
-     */
-    abstract protected function _cipherName();
+	/**
+	 * Get the cipher method name recognized by OpenSSL.
+	 *
+	 * @return string
+	 */
+	abstract protected function _cipherName();
     
-    /**
-     * Get the key size in bytes.
-     *
-     * @return int
-     */
-    abstract protected function _keySize();
+	/**
+	 * Get the key size in bytes.
+	 *
+	 * @return int
+	 */
+	abstract protected function _keySize();
     
-    /**
-     * Get AES cipher instance by key length.
-     *
-     * @param int $len Key length in bytes
-     * @throws \UnexpectedValueException
-     * @return self
-     */
-    public static function fromKeyLength($len)
-    {
-        $bits = $len << 3;
-        if (!array_key_exists($bits, self::MAP_KEYSIZE_TO_CLS)) {
-            throw new \UnexpectedValueException(
-                "No AES implementation for $bits-bit key size.");
-        }
-        $cls = self::MAP_KEYSIZE_TO_CLS[$bits];
-        return new $cls();
-    }
+	/**
+	 * Get AES cipher instance by key length.
+	 *
+	 * @param int $len Key length in bytes
+	 * @throws \UnexpectedValueException
+	 * @return self
+	 */
+	public static function fromKeyLength($len)
+	{
+		$bits = $len << 3;
+		if (!array_key_exists($bits, self::MAP_KEYSIZE_TO_CLS)) {
+			throw new \UnexpectedValueException(
+				"No AES implementation for $bits-bit key size.");
+		}
+		$cls = self::MAP_KEYSIZE_TO_CLS[$bits];
+		return new $cls();
+	}
     
-    /**
-     *
-     * @see \GCM\Cipher\Cipher::encrypt()
-     * @throws \UnexpectedValueException If key size is incorrect
-     * @throws \RuntimeException For generic errors
-     * @return string
-     */
-    public function encrypt($data, $key)
-    {
-        $key_size = $this->_keySize();
-        if (strlen($key) != $key_size) {
-            throw new \UnexpectedValueException(
-                "Key size must be $key_size bytes.");
-        }
-        $result = openssl_encrypt($data, $this->_cipherName(), $key,
-            OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING);
-        if (false === $result) {
-            throw new \RuntimeException(
-                "openssl_encrypt() failed: " . self::_getLastOpenSSLError());
-        }
-        return $result;
-    }
+	/**
+	 *
+	 * @see \GCM\Cipher\Cipher::encrypt()
+	 * @throws \UnexpectedValueException If key size is incorrect
+	 * @throws \RuntimeException For generic errors
+	 * @return string
+	 */
+	public function encrypt($data, $key)
+	{
+		$key_size = $this->_keySize();
+		if (strlen($key) != $key_size) {
+			throw new \UnexpectedValueException(
+				"Key size must be $key_size bytes.");
+		}
+		$result = openssl_encrypt($data, $this->_cipherName(), $key,
+			OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING);
+		if (false === $result) {
+			throw new \RuntimeException(
+				"openssl_encrypt() failed: " . self::_getLastOpenSSLError());
+		}
+		return $result;
+	}
     
-    /**
-     * Get latest OpenSSL error message.
-     *
-     * @return string
-     */
-    protected static function _getLastOpenSSLError()
-    {
-        $msg = null;
-        while (false !== ($err = openssl_error_string())) {
-            $msg = $err;
-        }
-        return $msg;
-    }
+	/**
+	 * Get latest OpenSSL error message.
+	 *
+	 * @return string
+	 */
+	protected static function _getLastOpenSSLError()
+	{
+		$msg = null;
+		while (false !== ($err = openssl_error_string())) {
+			$msg = $err;
+		}
+		return $msg;
+	}
 }

lib/GCM/Cipher/AES/AES256Cipher.php

Indentation +16 added lines, -16 removed lines

@@ -7,21 +7,21 @@
  */
 class AES256Cipher extends AESCipher
 {
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _cipherName()
-    {
-        return "AES-256-ECB";
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _cipherName()
+	{
+		return "AES-256-ECB";
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _keySize()
-    {
-        return 32;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _keySize()
+	{
+		return 32;
+	}
 }

lib/GCM/Cipher/AES/AES192Cipher.php

Indentation +16 added lines, -16 removed lines

@@ -7,21 +7,21 @@
  */
 class AES192Cipher extends AESCipher
 {
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _cipherName()
-    {
-        return "AES-192-ECB";
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _cipherName()
+	{
+		return "AES-192-ECB";
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _keySize()
-    {
-        return 24;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _keySize()
+	{
+		return 24;
+	}
 }

lib/GCM/Cipher/AES/AES128Cipher.php

Indentation +16 added lines, -16 removed lines

@@ -7,21 +7,21 @@
  */
 class AES128Cipher extends AESCipher
 {
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _cipherName()
-    {
-        return "AES-128-ECB";
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _cipherName()
+	{
+		return "AES-128-ECB";
+	}
     
-    /**
-     *
-     * {@inheritdoc}
-     */
-    protected function _keySize()
-    {
-        return 16;
-    }
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	protected function _keySize()
+	{
+		return 16;
+	}
 }