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BlowfishCipher.php000064400000001716151157170440010177 0ustar00<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
* @license GNU General Public License version 2 or later; see
LICENSE.txt
*/
namespace Joomla\CMS\Crypt\Cipher;
defined('JPATH_PLATFORM') or die;
/**
* Crypt cipher for Blowfish encryption, decryption and key generation.
*
* @since 3.0.0
* @deprecated 4.0 Without replacement use CryptoCipher
*/
class BlowfishCipher extends McryptCipher
{
/**
* @var integer The mcrypt cipher constant.
* @link https://www.php.net/manual/en/mcrypt.ciphers.php
* @since 3.0.0
*/
protected $type = MCRYPT_BLOWFISH;
/**
* @var integer The mcrypt block cipher mode.
* @link https://www.php.net/manual/en/mcrypt.constants.php
* @since 3.0.0
*/
protected $mode = MCRYPT_MODE_CBC;
/**
* @var string The JCrypt key type for validation.
* @since 3.0.0
*/
protected $keyType = 'blowfish';
}
CryptoCipher.php000064400000006176151157170440007707 0ustar00<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
* @license GNU General Public License version 2 or later; see
LICENSE.txt
*/
namespace Joomla\CMS\Crypt\Cipher;
defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Crypt\CipherInterface;
use Joomla\CMS\Crypt\Key;
/**
* Crypt cipher for encryption, decryption and key generation via the
php-encryption library.
*
* @since 3.5
*/
class CryptoCipher implements CipherInterface
{
/**
* Method to decrypt a data string.
*
* @param string $data The encrypted string to decrypt.
* @param Key $key The key object to use for decryption.
*
* @return string The decrypted data string.
*
* @since 3.5
* @throws \RuntimeException
*/
public function decrypt($data, Key $key)
{
// Validate key.
if ($key->type != 'crypto')
{
throw new \InvalidArgumentException('Invalid key of type: ' .
$key->type . '. Expected crypto.');
}
// Decrypt the data.
try
{
return \Crypto::Decrypt($data, $key->public);
}
catch (\InvalidCiphertextException $ex)
{
throw new \RuntimeException('DANGER! DANGER! The ciphertext has
been tampered with!', $ex->getCode(), $ex);
}
catch (\CryptoTestFailedException $ex)
{
throw new \RuntimeException('Cannot safely perform
decryption', $ex->getCode(), $ex);
}
catch (\CannotPerformOperationException $ex)
{
throw new \RuntimeException('Cannot safely perform
decryption', $ex->getCode(), $ex);
}
}
/**
* Method to encrypt a data string.
*
* @param string $data The data string to encrypt.
* @param Key $key The key object to use for encryption.
*
* @return string The encrypted data string.
*
* @since 3.5
* @throws \RuntimeException
*/
public function encrypt($data, Key $key)
{
// Validate key.
if ($key->type != 'crypto')
{
throw new \InvalidArgumentException('Invalid key of type: ' .
$key->type . '. Expected crypto.');
}
// Encrypt the data.
try
{
return \Crypto::Encrypt($data, $key->public);
}
catch (\CryptoTestFailedException $ex)
{
throw new \RuntimeException('Cannot safely perform
encryption', $ex->getCode(), $ex);
}
catch (\CannotPerformOperationException $ex)
{
throw new \RuntimeException('Cannot safely perform
encryption', $ex->getCode(), $ex);
}
}
/**
* Method to generate a new encryption key object.
*
* @param array $options Key generation options.
*
* @return Key
*
* @since 3.5
* @throws \RuntimeException
*/
public function generateKey(array $options = array())
{
// Create the new encryption key object.
$key = new Key('crypto');
// Generate the encryption key.
try
{
$key->public = \Crypto::CreateNewRandomKey();
}
catch (\CryptoTestFailedException $ex)
{
throw new \RuntimeException('Cannot safely create a key',
$ex->getCode(), $ex);
}
catch (\CannotPerformOperationException $ex)
{
throw new \RuntimeException('Cannot safely create a key',
$ex->getCode(), $ex);
}
// Explicitly flag the private as unused in this cipher.
$key->private = 'unused';
return $key;
}
}
McryptCipher.php000064400000010730151157170440007674 0ustar00<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
* @license GNU General Public License version 2 or later; see
LICENSE.txt
*/
namespace Joomla\CMS\Crypt\Cipher;
defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Crypt\CipherInterface;
use Joomla\CMS\Crypt\Crypt;
use Joomla\CMS\Crypt\Key;
/**
* Crypt cipher for mcrypt algorithm encryption, decryption and key
generation.
*
* @since 3.0.0
* @deprecated 4.0 Without replacement use CryptoCipher
*/
abstract class McryptCipher implements CipherInterface
{
/**
* @var integer The mcrypt cipher constant.
* @link https://www.php.net/manual/en/mcrypt.ciphers.php
* @since 3.0.0
*/
protected $type;
/**
* @var integer The mcrypt block cipher mode.
* @link https://www.php.net/manual/en/mcrypt.constants.php
* @since 3.0.0
*/
protected $mode;
/**
* @var string The Crypt key type for validation.
* @since 3.0.0
*/
protected $keyType;
/**
* Constructor.
*
* @since 3.0.0
* @throws \RuntimeException
*/
public function __construct()
{
if (!is_callable('mcrypt_encrypt'))
{
throw new \RuntimeException('The mcrypt extension is not
available.');
}
}
/**
* Method to decrypt a data string.
*
* @param string $data The encrypted string to decrypt.
* @param Key $key The key object to use for decryption.
*
* @return string The decrypted data string.
*
* @since 3.0.0
* @throws \InvalidArgumentException
*/
public function decrypt($data, Key $key)
{
// Validate key.
if ($key->type != $this->keyType)
{
throw new \InvalidArgumentException('Invalid key of type: ' .
$key->type . '. Expected ' . $this->keyType .
'.');
}
// Decrypt the data.
$decrypted = trim(mcrypt_decrypt($this->type, $key->private, $data,
$this->mode, $key->public));
return $decrypted;
}
/**
* Method to encrypt a data string.
*
* @param string $data The data string to encrypt.
* @param Key $key The key object to use for encryption.
*
* @return string The encrypted data string.
*
* @since 3.0.0
* @throws \InvalidArgumentException
*/
public function encrypt($data, Key $key)
{
// Validate key.
if ($key->type != $this->keyType)
{
throw new \InvalidArgumentException('Invalid key of type: ' .
$key->type . '. Expected ' . $this->keyType .
'.');
}
// Encrypt the data.
$encrypted = mcrypt_encrypt($this->type, $key->private, $data,
$this->mode, $key->public);
return $encrypted;
}
/**
* Method to generate a new encryption key object.
*
* @param array $options Key generation options.
*
* @return Key
*
* @since 3.0.0
* @throws \InvalidArgumentException
*/
public function generateKey(array $options = array())
{
// Create the new encryption key object.
$key = new Key($this->keyType);
// Generate an initialisation vector based on the algorithm.
$key->public = mcrypt_create_iv(mcrypt_get_iv_size($this->type,
$this->mode), MCRYPT_DEV_URANDOM);
// Get the salt and password setup.
$salt = (isset($options['salt'])) ? $options['salt']
: substr(pack('h*', md5(Crypt::genRandomBytes())), 0, 16);
if (!isset($options['password']))
{
throw new \InvalidArgumentException('Password is not set.');
}
// Generate the derived key.
$key->private = $this->pbkdf2($options['password'],
$salt, mcrypt_get_key_size($this->type, $this->mode));
return $key;
}
/**
* PBKDF2 Implementation for deriving keys.
*
* @param string $p Password
* @param string $s Salt
* @param integer $kl Key length
* @param integer $c Iteration count
* @param string $a Hash algorithm
*
* @return string The derived key.
*
* @link https://en.wikipedia.org/wiki/PBKDF2
* @link http://www.ietf.org/rfc/rfc2898.txt
* @since 3.0.0
*/
public function pbkdf2($p, $s, $kl, $c = 10000, $a = 'sha256')
{
// Hash length.
$hl = strlen(hash($a, null, true));
// Key blocks to compute.
$kb = ceil($kl / $hl);
// Derived key.
$dk = '';
// Create the key.
for ($block = 1; $block <= $kb; $block++)
{
// Initial hash for this block.
$ib = $b = hash_hmac($a, $s . pack('N', $block), $p, true);
// Perform block iterations.
for ($i = 1; $i < $c; $i++)
{
$ib ^= ($b = hash_hmac($a, $b, $p, true));
}
// Append the iterated block.
$dk .= $ib;
}
// Return derived key of correct length.
return substr($dk, 0, $kl);
}
}
Rijndael256Cipher.php000064400000001734151157170440010407 0ustar00<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
* @license GNU General Public License version 2 or later; see
LICENSE.txt
*/
namespace Joomla\CMS\Crypt\Cipher;
defined('JPATH_PLATFORM') or die;
/**
* Crypt cipher for Rijndael 256 encryption, decryption and key generation.
*
* @since 3.0.0
* @deprecated 4.0 Without replacement use CryptoCipher
*/
class Rijndael256Cipher extends McryptCipher
{
/**
* @var integer The mcrypt cipher constant.
* @link https://www.php.net/manual/en/mcrypt.ciphers.php
* @since 3.0.0
*/
protected $type = MCRYPT_RIJNDAEL_256;
/**
* @var integer The mcrypt block cipher mode.
* @link https://www.php.net/manual/en/mcrypt.constants.php
* @since 3.0.0
*/
protected $mode = MCRYPT_MODE_CBC;
/**
* @var string The JCrypt key type for validation.
* @since 3.0.0
*/
protected $keyType = 'rijndael256';
}
SimpleCipher.php000064400000012376151157170440007657 0ustar00<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
* @license GNU General Public License version 2 or later; see
LICENSE.txt
*/
namespace Joomla\CMS\Crypt\Cipher;
defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Crypt\CipherInterface;
use Joomla\CMS\Crypt\Crypt;
use Joomla\CMS\Crypt\Key;
/**
* Crypt cipher for Simple encryption, decryption and key generation.
*
* @since 3.0.0
* @deprecated 4.0 (CMS)
*/
class SimpleCipher implements CipherInterface
{
/**
* Method to decrypt a data string.
*
* @param string $data The encrypted string to decrypt.
* @param Key $key The key[/pair] object to use for decryption.
*
* @return string The decrypted data string.
*
* @since 3.0.0
* @throws \InvalidArgumentException
*/
public function decrypt($data, Key $key)
{
// Validate key.
if ($key->type != 'simple')
{
throw new \InvalidArgumentException('Invalid key of type: ' .
$key->type . '. Expected simple.');
}
$decrypted = '';
$tmp = $key->public;
// Convert the HEX input into an array of integers and get the number of
characters.
$chars = $this->_hexToIntArray($data);
$charCount = count($chars);
// Repeat the key as many times as necessary to ensure that the key is at
least as long as the input.
for ($i = 0; $i < $charCount; $i = strlen($tmp))
{
$tmp = $tmp . $tmp;
}
// Get the XOR values between the ASCII values of the input and key
characters for all input offsets.
for ($i = 0; $i < $charCount; $i++)
{
$decrypted .= chr($chars[$i] ^ ord($tmp[$i]));
}
return $decrypted;
}
/**
* Method to encrypt a data string.
*
* @param string $data The data string to encrypt.
* @param Key $key The key[/pair] object to use for encryption.
*
* @return string The encrypted data string.
*
* @since 3.0.0
* @throws \InvalidArgumentException
*/
public function encrypt($data, Key $key)
{
// Validate key.
if ($key->type != 'simple')
{
throw new \InvalidArgumentException('Invalid key of type: ' .
$key->type . '. Expected simple.');
}
$encrypted = '';
$tmp = $key->private;
// Split up the input into a character array and get the number of
characters.
$chars = preg_split('//', $data, -1, PREG_SPLIT_NO_EMPTY);
$charCount = count($chars);
// Repeat the key as many times as necessary to ensure that the key is at
least as long as the input.
for ($i = 0; $i < $charCount; $i = strlen($tmp))
{
$tmp = $tmp . $tmp;
}
// Get the XOR values between the ASCII values of the input and key
characters for all input offsets.
for ($i = 0; $i < $charCount; $i++)
{
$encrypted .= $this->_intToHex(ord($tmp[$i]) ^ ord($chars[$i]));
}
return $encrypted;
}
/**
* Method to generate a new encryption key[/pair] object.
*
* @param array $options Key generation options.
*
* @return Key
*
* @since 3.0.0
*/
public function generateKey(array $options = array())
{
// Create the new encryption key[/pair] object.
$key = new Key('simple');
// Just a random key of a given length.
$key->private = Crypt::genRandomBytes(256);
$key->public = $key->private;
return $key;
}
/**
* Convert hex to an integer
*
* @param string $s The hex string to convert.
* @param integer $i The offset?
*
* @return integer
*
* @since 1.7.0
*/
private function _hexToInt($s, $i)
{
$j = (int) $i * 2;
$k = 0;
$s1 = (string) $s;
// Get the character at position $j.
$c = substr($s1, $j, 1);
// Get the character at position $j + 1.
$c1 = substr($s1, $j + 1, 1);
switch ($c)
{
case 'A':
$k += 160;
break;
case 'B':
$k += 176;
break;
case 'C':
$k += 192;
break;
case 'D':
$k += 208;
break;
case 'E':
$k += 224;
break;
case 'F':
$k += 240;
break;
case ' ':
$k += 0;
break;
default:
(int) $k = $k + (16 * (int) $c);
break;
}
switch ($c1)
{
case 'A':
$k += 10;
break;
case 'B':
$k += 11;
break;
case 'C':
$k += 12;
break;
case 'D':
$k += 13;
break;
case 'E':
$k += 14;
break;
case 'F':
$k += 15;
break;
case ' ':
$k += 0;
break;
default:
$k += (int) $c1;
break;
}
return $k;
}
/**
* Convert hex to an array of integers
*
* @param string $hex The hex string to convert to an integer array.
*
* @return array An array of integers.
*
* @since 1.7.0
*/
private function _hexToIntArray($hex)
{
$array = array();
$j = (int) strlen($hex) / 2;
for ($i = 0; $i < $j; $i++)
{
$array[$i] = (int) $this->_hexToInt($hex, $i);
}
return $array;
}
/**
* Convert an integer to a hexadecimal string.
*
* @param integer $i An integer value to convert to a hex string.
*
* @return string
*
* @since 1.7.0
*/
private function _intToHex($i)
{
// Sanitize the input.
$i = (int) $i;
// Get the first character of the hexadecimal string if there is one.
$j = (int) ($i / 16);
if ($j === 0)
{
$s = ' ';
}
else
{
$s = strtoupper(dechex($j));
}
// Get the second character of the hexadecimal string.
$k = $i - $j * 16;
$s = $s . strtoupper(dechex($k));
return $s;
}
}
SodiumCipher.php000064400000005743151157170440007666 0ustar00<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
* @license GNU General Public License version 2 or later; see
LICENSE.txt
*/
namespace Joomla\CMS\Crypt\Cipher;
defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Crypt\CipherInterface;
use Joomla\CMS\Crypt\Key;
use ParagonIE\Sodium\Compat;
/**
* JCrypt cipher for sodium algorithm encryption, decryption and key
generation.
*
* @since 3.8.0
*/
class SodiumCipher implements CipherInterface
{
/**
* The message nonce to be used with encryption/decryption
*
* @var string
* @since 3.8.0
*/
private $nonce;
/**
* Method to decrypt a data string.
*
* @param string $data The encrypted string to decrypt.
* @param Key $key The key object to use for decryption.
*
* @return string The decrypted data string.
*
* @since 3.8.0
* @throws \RuntimeException
*/
public function decrypt($data, Key $key)
{
// Validate key.
if ($key->type !== 'sodium')
{
throw new \InvalidArgumentException('Invalid key of type: ' .
$key->type . '. Expected sodium.');
}
if (!$this->nonce)
{
throw new \RuntimeException('Missing nonce to decrypt data');
}
$decrypted = Compat::crypto_box_open(
$data,
$this->nonce,
Compat::crypto_box_keypair_from_secretkey_and_publickey($key->private,
$key->public)
);
if ($decrypted === false)
{
throw new \RuntimeException('Malformed message or invalid
MAC');
}
return $decrypted;
}
/**
* Method to encrypt a data string.
*
* @param string $data The data string to encrypt.
* @param Key $key The key object to use for encryption.
*
* @return string The encrypted data string.
*
* @since 3.8.0
* @throws \RuntimeException
*/
public function encrypt($data, Key $key)
{
// Validate key.
if ($key->type !== 'sodium')
{
throw new \InvalidArgumentException('Invalid key of type: ' .
$key->type . '. Expected sodium.');
}
if (!$this->nonce)
{
throw new \RuntimeException('Missing nonce to decrypt data');
}
return Compat::crypto_box(
$data,
$this->nonce,
Compat::crypto_box_keypair_from_secretkey_and_publickey($key->private,
$key->public)
);
}
/**
* Method to generate a new encryption key object.
*
* @param array $options Key generation options.
*
* @return Key
*
* @since 3.8.0
* @throws RuntimeException
*/
public function generateKey(array $options = array())
{
// Create the new encryption key object.
$key = new Key('sodium');
// Generate the encryption key.
$pair = Compat::crypto_box_keypair();
$key->public = Compat::crypto_box_publickey($pair);
$key->private = Compat::crypto_box_secretkey($pair);
return $key;
}
/**
* Set the nonce to use for encrypting/decrypting messages
*
* @param string $nonce The message nonce
*
* @return void
*
* @since 3.8.0
*/
public function setNonce($nonce)
{
$this->nonce = $nonce;
}
}
TripleDesCipher.php000064400000001711151157170440010310 0ustar00<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
* @license GNU General Public License version 2 or later; see
LICENSE.txt
*/
namespace Joomla\CMS\Crypt\Cipher;
defined('JPATH_PLATFORM') or die;
/**
* JCrypt cipher for Triple DES encryption, decryption and key generation.
*
* @since 3.0.0
* @deprecated 4.0 Without replacement use CryptoCipher
*/
class TripleDesCipher extends McryptCipher
{
/**
* @var integer The mcrypt cipher constant.
* @link https://www.php.net/manual/en/mcrypt.ciphers.php
* @since 3.0.0
*/
protected $type = MCRYPT_3DES;
/**
* @var integer The mcrypt block cipher mode.
* @link https://www.php.net/manual/en/mcrypt.constants.php
* @since 3.0.0
*/
protected $mode = MCRYPT_MODE_CBC;
/**
* @var string The Crypt key type for validation.
* @since 3.0.0
*/
protected $keyType = '3des';
}