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PK��~!]��l�E��E�� base32.phpnu�&1i��<?php /** * @package FrameworkOnFramework * @subpackage encrypt * @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved. * @license GNU General Public License version 2 or later; see LICENSE.txt / defined('F0F_INCLUDED') or die; /* * F0FEncryptBase32 * * @package FrameworkOnFramework * @since 1.0 / class F0FEncryptBase32 { /* * CSRFC3548 * * The character set as defined by RFC3548 * @link http://www.ietf.org/rfc/rfc3548.txt / const CSRFC3548 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567'; /* * str2bin * * Converts any ascii string to a binary string * * @param string $str The string you want to convert * * @return string String of 0's and 1's / private function str2bin($str) { $chrs = unpack('C', $str); return vsprintf(str_repeat('%08b', count($chrs)), $chrs); } /** * bin2str * * Converts a binary string to an ascii string * * @param string $str The string of 0's and 1's you want to convert * * @return string The ascii output * * @throws Exception / private function bin2str($str) { if (strlen($str) % 8 > 0) { throw new Exception('Length must be divisible by 8'); } if (!preg_match('/^[01]+$/', $str)) { throw new Exception('Only 0\'s and 1\'s are permitted'); } preg_match_all('/.{8}/', $str, $chrs); $chrs = array_map('bindec', $chrs[0]); // I'm just being slack here array_unshift($chrs, 'C'); return call_user_func_array('pack', $chrs); } /** * fromBin * * Converts a correct binary string to base32 * * @param string $str The string of 0's and 1's you want to convert * * @return string String encoded as base32 * * @throws exception / private function fromBin($str) { if (strlen($str) % 8 > 0) { throw new Exception('Length must be divisible by 8'); } if (!preg_match('/^[01]+$/', $str)) { throw new Exception('Only 0\'s and 1\'s are permitted'); } // Base32 works on the first 5 bits of a byte, so we insert blanks to pad it out $str = preg_replace('/(.{5})/', '000$1', $str); // We need a string divisible by 5 $length = strlen($str); $rbits = $length & 7; if ($rbits > 0) { // Excessive bits need to be padded $ebits = substr($str, $length - $rbits); $str = substr($str, 0, $length - $rbits); $str .= "000$ebits" . str_repeat('0', 5 - strlen($ebits)); } preg_match_all('/.{8}/', $str, $chrs); $chrs = array_map(array($this, '_mapcharset'), $chrs[0]); return join('', $chrs); } /* * toBin * * Accepts a base32 string and returns an ascii binary string * * @param string $str The base32 string to convert * * @return string Ascii binary string * * @throws Exception / private function toBin($str) { if (!preg_match('/^[' . self::CSRFC3548 . ']+$/', $str)) { throw new Exception('Must match character set'); } // Convert the base32 string back to a binary string $str = join('', array_map(array($this, '_mapbin'), str_split($str))); // Remove the extra 0's we added $str = preg_replace('/000(.{5})/', '$1', $str); // Unpad if nessicary $length = strlen($str); $rbits = $length & 7; if ($rbits > 0) { $str = substr($str, 0, $length - $rbits); } return $str; } /* * fromString * * Convert any string to a base32 string * This should be binary safe... * * @param string $str The string to convert * * @return string The converted base32 string / public function encode($str) { return $this->fromBin($this->str2bin($str)); } /* * toString * * Convert any base32 string to a normal sctring * This should be binary safe... * * @param string $str The base32 string to convert * * @return string The normal string / public function decode($str) { $str = strtoupper($str); return $this->bin2str($this->tobin($str)); } /* * _mapcharset * * Used with array_map to map the bits from a binary string * directly into a base32 character set * * @param string $str The string of 0's and 1's you want to convert * * @return string Resulting base32 character * * @access private / private function _mapcharset($str) { // Huh! $x = self::CSRFC3548; return $x[bindec($str)]; } /* * _mapbin * * Used with array_map to map the characters from a base32 * character set directly into a binary string * * @param string $chr The caracter to map * * @return string String of 0's and 1's * * @access private / private function _mapbin($chr) { return sprintf('%08b', strpos(self::CSRFC3548, $chr)); } } PK��~!]��vaA��A��totp.phpnu�&1i��<?php /* * @package FrameworkOnFramework * @subpackage encrypt * @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved. * @license GNU General Public License version 2 or later; see LICENSE.txt / defined('F0F_INCLUDED') or die; /* * This class provides an RFC6238-compliant Time-based One Time Passwords, * compatible with Google Authenticator (with PassCodeLength = 6 and TimePeriod = 30). * * @package FrameworkOnFramework * @since 1.0 / class F0FEncryptTotp { private $_passCodeLength = 6; private $_pinModulo; private $_secretLength = 10; private $_timeStep = 30; private $_base32 = null; /* * Initialises an RFC6238-compatible TOTP generator. Please note that this * class does not implement the constraint in the last paragraph of §5.2 * of RFC6238. It's up to you to ensure that the same user/device does not * retry validation within the same Time Step. * * @param int $timeStep The Time Step (in seconds). Use 30 to be compatible with Google Authenticator. * @param int $passCodeLength The generated passcode length. Default: 6 digits. * @param int $secretLength The length of the secret key. Default: 10 bytes (80 bits). * @param Object $base32 The base32 en/decrypter / public function __construct($timeStep = 30, $passCodeLength = 6, $secretLength = 10, $base32=null) { $this->_timeStep = $timeStep; $this->_passCodeLength = $passCodeLength; $this->_secretLength = $secretLength; $this->_pinModulo = pow(10, $this->_passCodeLength); if (is_null($base32)) { $this->_base32 = new F0FEncryptBase32; } else { $this->_base32 = $base32; } } /* * Get the time period based on the $time timestamp and the Time Step * defined. If $time is skipped or set to null the current timestamp will * be used. * * @param int\|null $time Timestamp * * @return int The time period since the UNIX Epoch / public function getPeriod($time = null) { if (is_null($time)) { $time = time(); } $period = floor($time / $this->_timeStep); return $period; } /* * Check is the given passcode $code is a valid TOTP generated using secret * key $secret * * @param string $secret The Base32-encoded secret key * @param string $code The passcode to check * * @return boolean True if the code is valid / public function checkCode($secret, $code) { $time = $this->getPeriod(); for ($i = -1; $i <= 1; $i++) { if ($this->getCode($secret, ($time + $i) $this->_timeStep) == $code) { return true; } } return false; } /** * Gets the TOTP passcode for a given secret key $secret and a given UNIX * timestamp $time * * @param string $secret The Base32-encoded secret key * @param int $time UNIX timestamp * * @return string / public function getCode($secret, $time = null) { $period = $this->getPeriod($time); $secret = $this->_base32->decode($secret); $time = pack("N", $period); $time = str_pad($time, 8, chr(0), STR_PAD_LEFT); $hash = hash_hmac('sha1', $time, $secret, true); $offset = ord(substr($hash, -1)); $offset = $offset & 0xF; $truncatedHash = $this->hashToInt($hash, $offset) & 0x7FFFFFFF; $pinValue = str_pad($truncatedHash % $this->_pinModulo, $this->_passCodeLength, "0", STR_PAD_LEFT); return $pinValue; } /* * Extracts a part of a hash as an integer * * @param string $bytes The hash * @param string $start The char to start from (0 = first char) * * @return string / protected function hashToInt($bytes, $start) { $input = substr($bytes, $start, strlen($bytes) - $start); $val2 = unpack("N", substr($input, 0, 4)); return $val2[1]; } /* * Returns a QR code URL for easy setup of TOTP apps like Google Authenticator * * @param string $user User * @param string $hostname Hostname * @param string $secret Secret string * * @return string / public function getUrl($user, $hostname, $secret) { $url = sprintf("otpauth://totp/%s@%s?secret=%s", $user, $hostname, $secret); $encoder = "https://chart.googleapis.com/chart?chs=200x200&chld=Q\|2&cht=qr&chl="; $encoderURL = $encoder . urlencode($url); return $encoderURL; } /* * Generates a (semi-)random Secret Key for TOTP generation * * @return string / public function generateSecret() { $secret = ""; for ($i = 1; $i <= $this->_secretLength; $i++) { $c = rand(0, 255); $secret .= pack("c", $c); } $base32 = new F0FEncryptBase32; return $this->_base32->encode($secret); } } PK��~!]O'Нu��u��aes.phpnu�&1i��<?php /* * @package FrameworkOnFramework * @subpackage encrypt * @copyright Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd. All rights reserved. * @license GNU General Public License version 2 or later; see LICENSE.txt / // Protect from unauthorized access defined('F0F_INCLUDED') or die; /* * A simple implementation of AES-128, AES-192 and AES-256 encryption using the * high performance mcrypt library. * * @package FrameworkOnFramework * @since 1.0 / class F0FEncryptAes { /* @var string The AES cipher to use (this is an mcrypt identifier, not the bit strength) / private $_cipherType = 0; /* @var string Cipher mode. Can be CBC or ECB. We recommend using CBC / private $_cipherMode = 0; /* @var string The cipher key (password) / private $_keyString = ''; /* * Initialise the AES encryption object * * @param string $key The encryption key (password). It can be a raw key (32 bytes) or a passphrase. * @param int $strength Bit strength (128, 192 or 256) * @param string $mode Ecnryption mode. Can be ebc or cbc. We recommend using cbc. / public function __construct($key, $strength = 256, $mode = 'cbc') { $this->_keyString = $key; switch ($strength) { case 256: default: $this->_cipherType = MCRYPT_RIJNDAEL_256; break; case 192: $this->_cipherType = MCRYPT_RIJNDAEL_192; break; case 128: $this->_cipherType = MCRYPT_RIJNDAEL_128; break; } switch (strtoupper($mode)) { case 'ECB': $this->_cipherMode = MCRYPT_MODE_ECB; break; case 'CBC': $this->_cipherMode = MCRYPT_MODE_CBC; break; } } /* * Encrypts a string using AES * * @param string $stringToEncrypt The plaintext to encrypt * @param bool $base64encoded Should I Base64-encode the result? * * @return string The cryptotext. Please note that the first 16 bytes of * the raw string is the IV (initialisation vector) which * is necessary for decoding the string. / public function encryptString($stringToEncrypt, $base64encoded = true) { if (strlen($this->_keyString) != 32) { $key = hash('sha256', $this->_keyString, true); } else { $key = $this->_keyString; } // Set up the IV (Initialization Vector) $iv_size = mcrypt_get_iv_size($this->_cipherType, $this->_cipherMode); $iv = mcrypt_create_iv($iv_size, MCRYPT_DEV_URANDOM); if (empty($iv)) { $iv = mcrypt_create_iv($iv_size, MCRYPT_DEV_RANDOM); } if (empty($iv)) { $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); } // Encrypt the data $cipherText = mcrypt_encrypt($this->_cipherType, $key, $stringToEncrypt, $this->_cipherMode, $iv); // Prepend the IV to the ciphertext $cipherText = $iv . $cipherText; // Optionally pass the result through Base64 encoding if ($base64encoded) { $cipherText = base64_encode($cipherText); } // Return the result return $cipherText; } /* * Decrypts a ciphertext into a plaintext string using AES * * @param string $stringToDecrypt The ciphertext to decrypt. The first 16 bytes of the raw string must contain the IV (initialisation vector). * @param bool $base64encoded Should I Base64-decode the data before decryption? * * @return string The plain text string / public function decryptString($stringToDecrypt, $base64encoded = true) { if (strlen($this->_keyString) != 32) { $key = hash('sha256', $this->_keyString, true); } else { $key = $this->_keyString; } if ($base64encoded) { $stringToDecrypt = base64_decode($stringToDecrypt); } // Calculate the IV size $iv_size = mcrypt_get_iv_size($this->_cipherType, $this->_cipherMode); // Extract IV $iv = substr($stringToDecrypt, 0, $iv_size); $stringToDecrypt = substr($stringToDecrypt, $iv_size); // Decrypt the data $plainText = mcrypt_decrypt($this->_cipherType, $key, $stringToDecrypt, $this->_cipherMode, $iv); return $plainText; } /* * Is AES encryption supported by this PHP installation? * * @return boolean */ public static function isSupported() { if (!function_exists('mcrypt_get_key_size')) { return false; } if (!function_exists('mcrypt_get_iv_size')) { return false; } if (!function_exists('mcrypt_create_iv')) { return false; } if (!function_exists('mcrypt_encrypt')) { return false; } if (!function_exists('mcrypt_decrypt')) { return false; } if (!function_exists('mcrypt_list_algorithms')) { return false; } if (!function_exists('hash')) { return false; } if (!function_exists('hash_algos')) { return false; } if (!function_exists('base64_encode')) { return false; } if (!function_exists('base64_decode')) { return false; } $algorightms = mcrypt_list_algorithms(); if (!in_array('rijndael-128', $algorightms)) { return false; } if (!in_array('rijndael-192', $algorightms)) { return false; } if (!in_array('rijndael-256', $algorightms)) { return false; } $algorightms = hash_algos(); if (!in_array('sha256', $algorightms)) { return false; } return true; } } PK��~!]��l�E��E�� base32.phpnu�&1i��PK��~!]��vaA��A��totp.phpnu�&1i��PK��~!]O'Нu��u��$��aes.phpnu�&1i��PK��9��

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