File: //usr/share/php/Composer/defuse-crypto
<?php
/**
* Generated by Box.
*
* @link https://github.com/herrera-io/php-box/
*/
if (class_exists('Phar')) {
Phar::mapPhar('default.phar');
require 'phar://' . __FILE__ . '/vendor/autoload.php';
}
__HALT_COMPILER(); ?>
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namespace Defuse\Crypto;
use Defuse\Crypto\Exception as Ex;
class RuntimeTests extends Crypto
{
public static function runtimeTest()
{
static $test_state = 0;
if ($test_state === 1 || $test_state === 2) {
return;
}
if ($test_state === 3) {
throw new Ex\EnvironmentIsBrokenException('Tests failed previously.');
}
try {
$test_state = 2;
Core::ensureFunctionExists('openssl_get_cipher_methods');
if (\in_array(Core::CIPHER_METHOD, \openssl_get_cipher_methods()) === false) {
throw new Ex\EnvironmentIsBrokenException(
'Cipher method not supported. This is normally caused by an outdated ' .
'version of OpenSSL (and/or OpenSSL compiled for FIPS compliance). ' .
'Please upgrade to a newer version of OpenSSL that supports ' .
Core::CIPHER_METHOD . ' to use this library.'
);
}
RuntimeTests::AESTestVector();
RuntimeTests::HMACTestVector();
RuntimeTests::HKDFTestVector();
RuntimeTests::testEncryptDecrypt();
if (Core::ourStrlen(Key::createNewRandomKey()->getRawBytes()) != Core::KEY_BYTE_SIZE) {
throw new Ex\EnvironmentIsBrokenException();
}
if (Core::ENCRYPTION_INFO_STRING == Core::AUTHENTICATION_INFO_STRING) {
throw new Ex\EnvironmentIsBrokenException();
}
} catch (Ex\EnvironmentIsBrokenException $ex) {
$test_state = 3;
throw $ex;
}
$test_state = 1;
}
private static function testEncryptDecrypt()
{
$key = Key::createNewRandomKey();
$data = "EnCrYpT EvErYThInG\x00\x00";
$ciphertext = Crypto::encrypt($data, $key, true);
try {
$decrypted = Crypto::decrypt($ciphertext, $key, true);
} catch (Ex\WrongKeyOrModifiedCiphertextException $ex) {
throw new Ex\EnvironmentIsBrokenException();
}
if ($decrypted !== $data) {
throw new Ex\EnvironmentIsBrokenException();
}
try {
Crypto::decrypt($ciphertext . 'a', $key, true);
throw new Ex\EnvironmentIsBrokenException();
} catch (Ex\WrongKeyOrModifiedCiphertextException $e) {
}
$indices_to_change = [
0,
Core::HEADER_VERSION_SIZE + 1,
Core::HEADER_VERSION_SIZE + Core::SALT_BYTE_SIZE + 1,
Core::HEADER_VERSION_SIZE + Core::SALT_BYTE_SIZE + Core::BLOCK_BYTE_SIZE + 1,
];
foreach ($indices_to_change as $index) {
try {
$ciphertext[$index] = \chr((\ord($ciphertext[$index]) + 1) % 256);
Crypto::decrypt($ciphertext, $key, true);
throw new Ex\EnvironmentIsBrokenException();
} catch (Ex\WrongKeyOrModifiedCiphertextException $e) {
}
}
$key = Key::createNewRandomKey();
$data = 'abcdef';
$ciphertext = Crypto::encrypt($data, $key, true);
$wrong_key = Key::createNewRandomKey();
try {
Crypto::decrypt($ciphertext, $wrong_key, true);
throw new Ex\EnvironmentIsBrokenException();
} catch (Ex\WrongKeyOrModifiedCiphertextException $e) {
}
$key = Key::createNewRandomKey();
$ciphertext = \str_repeat('A', Core::MINIMUM_CIPHERTEXT_SIZE - 1);
try {
Crypto::decrypt($ciphertext, $key, true);
throw new Ex\EnvironmentIsBrokenException();
} catch (Ex\WrongKeyOrModifiedCiphertextException $e) {
}
}
private static function HKDFTestVector()
{
$ikm = \str_repeat("\x0b", 22);
$salt = Encoding::hexToBin('000102030405060708090a0b0c');
$info = Encoding::hexToBin('f0f1f2f3f4f5f6f7f8f9');
$length = 42;
$okm = Encoding::hexToBin(
'3cb25f25faacd57a90434f64d0362f2a' .
'2d2d0a90cf1a5a4c5db02d56ecc4c5bf' .
'34007208d5b887185865'
);
$computed_okm = Core::HKDF('sha256', $ikm, $length, $info, $salt);
if ($computed_okm !== $okm) {
throw new Ex\EnvironmentIsBrokenException();
}
$ikm = \str_repeat("\x0c", 22);
$length = 42;
$okm = Encoding::hexToBin(
'2c91117204d745f3500d636a62f64f0a' .
'b3bae548aa53d423b0d1f27ebba6f5e5' .
'673a081d70cce7acfc48'
);
$computed_okm = Core::HKDF('sha1', $ikm, $length, '', null);
if ($computed_okm !== $okm) {
throw new Ex\EnvironmentIsBrokenException();
}
}
private static function HMACTestVector()
{
$key = \str_repeat("\x0b", 20);
$data = 'Hi There';
$correct = 'b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7';
if (\hash_hmac(Core::HASH_FUNCTION_NAME, $data, $key) !== $correct) {
throw new Ex\EnvironmentIsBrokenException();
}
}
private static function AESTestVector()
{
$key = Encoding::hexToBin(
'603deb1015ca71be2b73aef0857d7781' .
'1f352c073b6108d72d9810a30914dff4'
);
$iv = Encoding::hexToBin('f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff');
$plaintext = Encoding::hexToBin(
'6bc1bee22e409f96e93d7e117393172a' .
'ae2d8a571e03ac9c9eb76fac45af8e51' .
'30c81c46a35ce411e5fbc1191a0a52ef' .
'f69f2445df4f9b17ad2b417be66c3710'
);
$ciphertext = Encoding::hexToBin(
'601ec313775789a5b7a7f504bbf3d228' .
'f443e3ca4d62b59aca84e990cacaf5c5' .
'2b0930daa23de94ce87017ba2d84988d' .
'dfc9c58db67aada613c2dd08457941a6'
);
$computed_ciphertext = Crypto::plainEncrypt($plaintext, $key, $iv);
if ($computed_ciphertext !== $ciphertext) {
echo \str_repeat("\n", 30);
echo \bin2hex($computed_ciphertext);
echo "\n---\n";
echo \bin2hex($ciphertext);
echo \str_repeat("\n", 30);
throw new Ex\EnvironmentIsBrokenException();
}
$computed_plaintext = Crypto::plainDecrypt($ciphertext, $key, $iv, Core::CIPHER_METHOD);
if ($computed_plaintext !== $plaintext) {
throw new Ex\EnvironmentIsBrokenException();
}
}
}
<?php
namespace Defuse\Crypto;
use Defuse\Crypto\Exception as Ex;
final class KeyProtectedByPassword
{
const PASSWORD_KEY_CURRENT_VERSION = "\xDE\xF1\x00\x00";
private $encrypted_key = '';
public static function createRandomPasswordProtectedKey($password)
{
$inner_key = Key::createNewRandomKey();
$encrypted_key = Crypto::encryptWithPassword(
$inner_key->saveToAsciiSafeString(),
\hash(Core::HASH_FUNCTION_NAME, $password, true),
true
);
return new KeyProtectedByPassword($encrypted_key);
}
public static function loadFromAsciiSafeString($saved_key_string)
{
$encrypted_key = Encoding::loadBytesFromChecksummedAsciiSafeString(
self::PASSWORD_KEY_CURRENT_VERSION,
$saved_key_string
);
return new KeyProtectedByPassword($encrypted_key);
}
public function saveToAsciiSafeString()
{
return Encoding::saveBytesToChecksummedAsciiSafeString(
self::PASSWORD_KEY_CURRENT_VERSION,
$this->encrypted_key
);
}
public function unlockKey($password)
{
try {
$inner_key_encoded = Crypto::decryptWithPassword(
$this->encrypted_key,
\hash(Core::HASH_FUNCTION_NAME, $password, true),
true
);
return Key::loadFromAsciiSafeString($inner_key_encoded);
} catch (Ex\BadFormatException $ex) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
"The decrypted key was found to be in an invalid format. " .
"This very likely indicates it was modified by an attacker."
);
}
}
private function __construct($encrypted_key)
{
$this->encrypted_key = $encrypted_key;
}
}
<?php
namespace Defuse\Crypto;
use Defuse\Crypto\Exception as Ex;
final class KeyOrPassword
{
const PBKDF2_ITERATIONS = 100000;
const SECRET_TYPE_KEY = 1;
const SECRET_TYPE_PASSWORD = 2;
private $secret_type = 0;
private $secret;
public static function createFromKey(Key $key)
{
return new KeyOrPassword(self::SECRET_TYPE_KEY, $key);
}
public static function createFromPassword($password)
{
return new KeyOrPassword(self::SECRET_TYPE_PASSWORD, $password);
}
public function deriveKeys($salt)
{
if (Core::ourStrlen($salt) !== Core::SALT_BYTE_SIZE) {
throw new Ex\EnvironmentIsBrokenException('Bad salt.');
}
if ($this->secret_type === self::SECRET_TYPE_KEY) {
if (!($this->secret instanceof Key)) {
throw new Ex\CryptoException('Expected a Key object');
}
$akey = Core::HKDF(
Core::HASH_FUNCTION_NAME,
$this->secret->getRawBytes(),
Core::KEY_BYTE_SIZE,
Core::AUTHENTICATION_INFO_STRING,
$salt
);
$ekey = Core::HKDF(
Core::HASH_FUNCTION_NAME,
$this->secret->getRawBytes(),
Core::KEY_BYTE_SIZE,
Core::ENCRYPTION_INFO_STRING,
$salt
);
return new DerivedKeys($akey, $ekey);
} elseif ($this->secret_type === self::SECRET_TYPE_PASSWORD) {
if (!\is_string($this->secret)) {
throw new Ex\CryptoException('Expected a string');
}
$prehash = \hash(Core::HASH_FUNCTION_NAME, $this->secret, true);
$prekey = Core::pbkdf2(
Core::HASH_FUNCTION_NAME,
$prehash,
$salt,
self::PBKDF2_ITERATIONS,
Core::KEY_BYTE_SIZE,
true
);
$akey = Core::HKDF(
Core::HASH_FUNCTION_NAME,
$prekey,
Core::KEY_BYTE_SIZE,
Core::AUTHENTICATION_INFO_STRING,
$salt
);
$ekey = Core::HKDF(
Core::HASH_FUNCTION_NAME,
$prekey,
Core::KEY_BYTE_SIZE,
Core::ENCRYPTION_INFO_STRING,
$salt
);
return new DerivedKeys($akey, $ekey);
} else {
throw new Ex\EnvironmentIsBrokenException('Bad secret type.');
}
}
private function __construct($secret_type, $secret)
{
$this->secret_type = $secret_type;
$this->secret = $secret;
}
}
<?php
namespace Defuse\Crypto;
use Defuse\Crypto\Exception as Ex;
final class Key
{
const KEY_CURRENT_VERSION = "\xDE\xF0\x00\x00";
const KEY_BYTE_SIZE = 32;
private $key_bytes;
public static function createNewRandomKey()
{
return new Key(Core::secureRandom(self::KEY_BYTE_SIZE));
}
public static function loadFromAsciiSafeString($saved_key_string, $do_not_trim = false)
{
if (!$do_not_trim) {
$saved_key_string = Encoding::trimTrailingWhitespace($saved_key_string);
}
$key_bytes = Encoding::loadBytesFromChecksummedAsciiSafeString(self::KEY_CURRENT_VERSION, $saved_key_string);
return new Key($key_bytes);
}
public function saveToAsciiSafeString()
{
return Encoding::saveBytesToChecksummedAsciiSafeString(
self::KEY_CURRENT_VERSION,
$this->key_bytes
);
}
public function getRawBytes()
{
return $this->key_bytes;
}
private function __construct($bytes)
{
if (Core::ourStrlen($bytes) !== self::KEY_BYTE_SIZE) {
throw new Ex\EnvironmentIsBrokenException(
'Bad key length.'
);
}
$this->key_bytes = $bytes;
}
}
<?php
namespace Defuse\Crypto;
use Defuse\Crypto\Exception as Ex;
final class File
{
public static function encryptFile($inputFilename, $outputFilename, Key $key)
{
self::encryptFileInternal(
$inputFilename,
$outputFilename,
KeyOrPassword::createFromKey($key)
);
}
public static function encryptFileWithPassword($inputFilename, $outputFilename, $password)
{
self::encryptFileInternal(
$inputFilename,
$outputFilename,
KeyOrPassword::createFromPassword($password)
);
}
public static function decryptFile($inputFilename, $outputFilename, Key $key)
{
self::decryptFileInternal(
$inputFilename,
$outputFilename,
KeyOrPassword::createFromKey($key)
);
}
public static function decryptFileWithPassword($inputFilename, $outputFilename, $password)
{
self::decryptFileInternal(
$inputFilename,
$outputFilename,
KeyOrPassword::createFromPassword($password)
);
}
public static function encryptResource($inputHandle, $outputHandle, Key $key)
{
self::encryptResourceInternal(
$inputHandle,
$outputHandle,
KeyOrPassword::createFromKey($key)
);
}
public static function encryptResourceWithPassword($inputHandle, $outputHandle, $password)
{
self::encryptResourceInternal(
$inputHandle,
$outputHandle,
KeyOrPassword::createFromPassword($password)
);
}
public static function decryptResource($inputHandle, $outputHandle, Key $key)
{
self::decryptResourceInternal(
$inputHandle,
$outputHandle,
KeyOrPassword::createFromKey($key)
);
}
public static function decryptResourceWithPassword($inputHandle, $outputHandle, $password)
{
self::decryptResourceInternal(
$inputHandle,
$outputHandle,
KeyOrPassword::createFromPassword($password)
);
}
private static function encryptFileInternal($inputFilename, $outputFilename, KeyOrPassword $secret)
{
$if = @\fopen($inputFilename, 'rb');
if ($if === false) {
throw new Ex\IOException(
'Cannot open input file for encrypting: ' .
self::getLastErrorMessage()
);
}
if (\is_callable('\\stream_set_read_buffer')) {
\stream_set_read_buffer($if, 0);
}
$of = @\fopen($outputFilename, 'wb');
if ($of === false) {
\fclose($if);
throw new Ex\IOException(
'Cannot open output file for encrypting: ' .
self::getLastErrorMessage()
);
}
if (\is_callable('\\stream_set_write_buffer')) {
\stream_set_write_buffer($of, 0);
}
try {
self::encryptResourceInternal($if, $of, $secret);
} catch (Ex\CryptoException $ex) {
\fclose($if);
\fclose($of);
throw $ex;
}
if (\fclose($if) === false) {
\fclose($of);
throw new Ex\IOException(
'Cannot close input file after encrypting'
);
}
if (\fclose($of) === false) {
throw new Ex\IOException(
'Cannot close output file after encrypting'
);
}
}
private static function decryptFileInternal($inputFilename, $outputFilename, KeyOrPassword $secret)
{
$if = @\fopen($inputFilename, 'rb');
if ($if === false) {
throw new Ex\IOException(
'Cannot open input file for decrypting: ' .
self::getLastErrorMessage()
);
}
if (\is_callable('\\stream_set_read_buffer')) {
\stream_set_read_buffer($if, 0);
}
$of = @\fopen($outputFilename, 'wb');
if ($of === false) {
\fclose($if);
throw new Ex\IOException(
'Cannot open output file for decrypting: ' .
self::getLastErrorMessage()
);
}
if (\is_callable('\\stream_set_write_buffer')) {
\stream_set_write_buffer($of, 0);
}
try {
self::decryptResourceInternal($if, $of, $secret);
} catch (Ex\CryptoException $ex) {
\fclose($if);
\fclose($of);
throw $ex;
}
if (\fclose($if) === false) {
\fclose($of);
throw new Ex\IOException(
'Cannot close input file after decrypting'
);
}
if (\fclose($of) === false) {
throw new Ex\IOException(
'Cannot close output file after decrypting'
);
}
}
private static function encryptResourceInternal($inputHandle, $outputHandle, KeyOrPassword $secret)
{
if (! \is_resource($inputHandle)) {
throw new Ex\IOException(
'Input handle must be a resource!'
);
}
if (! \is_resource($outputHandle)) {
throw new Ex\IOException(
'Output handle must be a resource!'
);
}
$inputStat = \fstat($inputHandle);
$inputSize = $inputStat['size'];
$file_salt = Core::secureRandom(Core::SALT_BYTE_SIZE);
$keys = $secret->deriveKeys($file_salt);
$ekey = $keys->getEncryptionKey();
$akey = $keys->getAuthenticationKey();
$ivsize = Core::BLOCK_BYTE_SIZE;
$iv = Core::secureRandom($ivsize);
$hmac = \hash_init(Core::HASH_FUNCTION_NAME, HASH_HMAC, $akey);
if (!\is_resource($hmac)) {
throw new Ex\EnvironmentIsBrokenException(
'Cannot initialize a hash context'
);
}
self::writeBytes(
$outputHandle,
Core::CURRENT_VERSION . $file_salt . $iv,
Core::HEADER_VERSION_SIZE + Core::SALT_BYTE_SIZE + $ivsize
);
\hash_update($hmac, Core::CURRENT_VERSION);
\hash_update($hmac, $file_salt);
\hash_update($hmac, $iv);
$thisIv = $iv;
$inc = (int) (Core::BUFFER_BYTE_SIZE / Core::BLOCK_BYTE_SIZE);
$at_file_end = false;
while (! (\feof($inputHandle) || $at_file_end)) {
$pos = \ftell($inputHandle);
if (!\is_int($pos)) {
throw new Ex\IOException(
'Could not get current position in input file during encryption'
);
}
if ($pos + Core::BUFFER_BYTE_SIZE >= $inputSize) {
$at_file_end = true;
$read = self::readBytes(
$inputHandle,
$inputSize - $pos
);
} else {
$read = self::readBytes(
$inputHandle,
Core::BUFFER_BYTE_SIZE
);
}
$encrypted = \openssl_encrypt(
$read,
Core::CIPHER_METHOD,
$ekey,
OPENSSL_RAW_DATA,
$thisIv
);
if (!\is_string($encrypted)) {
throw new Ex\EnvironmentIsBrokenException(
'OpenSSL encryption error'
);
}
self::writeBytes($outputHandle, $encrypted, Core::ourStrlen($encrypted));
\hash_update($hmac, $encrypted);
$thisIv = Core::incrementCounter($thisIv, $inc);
}
$final_mac = \hash_final($hmac, true);
self::writeBytes($outputHandle, $final_mac, Core::MAC_BYTE_SIZE);
}
public static function decryptResourceInternal($inputHandle, $outputHandle, KeyOrPassword $secret)
{
if (! \is_resource($inputHandle)) {
throw new Ex\IOException(
'Input handle must be a resource!'
);
}
if (! \is_resource($outputHandle)) {
throw new Ex\IOException(
'Output handle must be a resource!'
);
}
$stat = \fstat($inputHandle);
if ($stat['size'] < Core::MINIMUM_CIPHERTEXT_SIZE) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Input file is too small to have been created by this library.'
);
}
$header = self::readBytes($inputHandle, Core::HEADER_VERSION_SIZE);
if ($header !== Core::CURRENT_VERSION) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Bad version header.'
);
}
$file_salt = self::readBytes($inputHandle, Core::SALT_BYTE_SIZE);
$ivsize = Core::BLOCK_BYTE_SIZE;
$iv = self::readBytes($inputHandle, $ivsize);
$keys = $secret->deriveKeys($file_salt);
$ekey = $keys->getEncryptionKey();
$akey = $keys->getAuthenticationKey();
$macs = [];
$thisIv = $iv;
$inc = (int) (Core::BUFFER_BYTE_SIZE / Core::BLOCK_BYTE_SIZE);
if (\fseek($inputHandle, (-1 * Core::MAC_BYTE_SIZE), SEEK_END) === false) {
throw new Ex\IOException(
'Cannot seek to beginning of MAC within input file'
);
}
$cipher_end = \ftell($inputHandle);
if (!\is_int($cipher_end)) {
throw new Ex\IOException(
'Cannot read input file'
);
}
--$cipher_end;
$stored_mac = self::readBytes($inputHandle, Core::MAC_BYTE_SIZE);
$hmac = \hash_init(Core::HASH_FUNCTION_NAME, HASH_HMAC, $akey);
if (!\is_resource($hmac)) {
throw new Ex\EnvironmentIsBrokenException(
'Cannot initialize a hash context'
);
}
if (\fseek($inputHandle, Core::HEADER_VERSION_SIZE, SEEK_SET) === false) {
throw new Ex\IOException(
'Cannot read seek within input file'
);
}
if (\fseek($inputHandle, Core::SALT_BYTE_SIZE + $ivsize, SEEK_CUR) === false) {
throw new Ex\IOException(
'Cannot seek input file to beginning of ciphertext'
);
}
\hash_update($hmac, $header);
\hash_update($hmac, $file_salt);
\hash_update($hmac, $iv);
$hmac2 = \hash_copy($hmac);
$break = false;
while (! $break) {
$pos = \ftell($inputHandle);
if (!\is_int($pos)) {
throw new Ex\IOException(
'Could not get current position in input file during decryption'
);
}
if ($pos + Core::BUFFER_BYTE_SIZE >= $cipher_end) {
$break = true;
$read = self::readBytes(
$inputHandle,
$cipher_end - $pos + 1
);
} else {
$read = self::readBytes(
$inputHandle,
Core::BUFFER_BYTE_SIZE
);
}
\hash_update($hmac, $read);
$chunk_mac = \hash_copy($hmac);
if (!\is_resource($chunk_mac)) {
throw new Ex\EnvironmentIsBrokenException(
'Cannot duplicate a hash context'
);
}
$macs []= \hash_final($chunk_mac);
}
$final_mac = \hash_final($hmac, true);
if (! Core::hashEquals($final_mac, $stored_mac)) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Integrity check failed.'
);
}
if (\fseek($inputHandle, Core::SALT_BYTE_SIZE + $ivsize + Core::HEADER_VERSION_SIZE, SEEK_SET) === false) {
throw new Ex\IOException(
'Could not move the input file pointer during decryption'
);
}
$at_file_end = false;
while (! $at_file_end) {
$pos = \ftell($inputHandle);
if (!\is_int($pos)) {
throw new Ex\IOException(
'Could not get current position in input file during decryption'
);
}
if ($pos + Core::BUFFER_BYTE_SIZE >= $cipher_end) {
$at_file_end = true;
$read = self::readBytes(
$inputHandle,
$cipher_end - $pos + 1
);
} else {
$read = self::readBytes(
$inputHandle,
Core::BUFFER_BYTE_SIZE
);
}
\hash_update($hmac2, $read);
$calc_mac = \hash_copy($hmac2);
if (!\is_resource($calc_mac)) {
throw new Ex\EnvironmentIsBrokenException(
'Cannot duplicate a hash context'
);
}
$calc = \hash_final($calc_mac);
if (empty($macs)) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'File was modified after MAC verification'
);
} elseif (! Core::hashEquals(\array_shift($macs), $calc)) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'File was modified after MAC verification'
);
}
$decrypted = \openssl_decrypt(
$read,
Core::CIPHER_METHOD,
$ekey,
OPENSSL_RAW_DATA,
$thisIv
);
if (!\is_string($decrypted)) {
throw new Ex\EnvironmentIsBrokenException(
'OpenSSL decryption error'
);
}
self::writeBytes(
$outputHandle,
$decrypted,
Core::ourStrlen($decrypted)
);
$thisIv = Core::incrementCounter($thisIv, $inc);
}
}
public static function readBytes($stream, $num_bytes)
{
if ($num_bytes < 0) {
throw new Ex\EnvironmentIsBrokenException(
'Tried to read less than 0 bytes'
);
} elseif ($num_bytes === 0) {
return '';
}
$buf = '';
$remaining = $num_bytes;
while ($remaining > 0 && ! \feof($stream)) {
$read = \fread($stream, $remaining);
if (!\is_string($read)) {
throw new Ex\IOException(
'Could not read from the file'
);
}
$buf .= $read;
$remaining -= Core::ourStrlen($read);
}
if (Core::ourStrlen($buf) !== $num_bytes) {
throw new Ex\IOException(
'Tried to read past the end of the file'
);
}
return $buf;
}
public static function writeBytes($stream, $buf, $num_bytes = null)
{
$bufSize = Core::ourStrlen($buf);
if ($num_bytes === null) {
$num_bytes = $bufSize;
}
if ($num_bytes > $bufSize) {
throw new Ex\IOException(
'Trying to write more bytes than the buffer contains.'
);
}
if ($num_bytes < 0) {
throw new Ex\IOException(
'Tried to write less than 0 bytes'
);
}
$remaining = $num_bytes;
while ($remaining > 0) {
$written = \fwrite($stream, $buf, $remaining);
if (!\is_int($written)) {
throw new Ex\IOException(
'Could not write to the file'
);
}
$buf = (string) Core::ourSubstr($buf, $written, null);
$remaining -= $written;
}
return $num_bytes;
}
private static function getLastErrorMessage()
{
$error = error_get_last();
if ($error === null) {
return '[no PHP error]';
} else {
return $error['message'];
}
}
}
<?php
namespace Defuse\Crypto\Exception;
class WrongKeyOrModifiedCiphertextException extends \Defuse\Crypto\Exception\CryptoException
{
}
<?php
namespace Defuse\Crypto\Exception;
class IOException extends \Defuse\Crypto\Exception\CryptoException
{
}
<?php
namespace Defuse\Crypto\Exception;
class EnvironmentIsBrokenException extends \Defuse\Crypto\Exception\CryptoException
{
}
<?php
namespace Defuse\Crypto\Exception;
class CryptoException extends \Exception
{
}
<?php
namespace Defuse\Crypto\Exception;
class BadFormatException extends \Defuse\Crypto\Exception\CryptoException
{
}
<?php
namespace Defuse\Crypto;
use Defuse\Crypto\Exception as Ex;
final class Encoding
{
const CHECKSUM_BYTE_SIZE = 32;
const CHECKSUM_HASH_ALGO = 'sha256';
const SERIALIZE_HEADER_BYTES = 4;
public static function binToHex($byte_string)
{
$hex = '';
$len = Core::ourStrlen($byte_string);
for ($i = 0; $i < $len; ++$i) {
$c = \ord($byte_string[$i]) & 0xf;
$b = \ord($byte_string[$i]) >> 4;
$hex .= \pack(
'CC',
87 + $b + ((($b - 10) >> 8) & ~38),
87 + $c + ((($c - 10) >> 8) & ~38)
);
}
return $hex;
}
public static function hexToBin($hex_string)
{
$hex_pos = 0;
$bin = '';
$hex_len = Core::ourStrlen($hex_string);
$state = 0;
$c_acc = 0;
while ($hex_pos < $hex_len) {
$c = \ord($hex_string[$hex_pos]);
$c_num = $c ^ 48;
$c_num0 = ($c_num - 10) >> 8;
$c_alpha = ($c & ~32) - 55;
$c_alpha0 = (($c_alpha - 10) ^ ($c_alpha - 16)) >> 8;
if (($c_num0 | $c_alpha0) === 0) {
throw new Ex\BadFormatException(
'Encoding::hexToBin() input is not a hex string.'
);
}
$c_val = ($c_num0 & $c_num) | ($c_alpha & $c_alpha0);
if ($state === 0) {
$c_acc = $c_val * 16;
} else {
$bin .= \pack('C', $c_acc | $c_val);
}
$state ^= 1;
++$hex_pos;
}
return $bin;
}
public static function trimTrailingWhitespace($string = '')
{
$length = Core::ourStrlen($string);
if ($length < 1) {
return '';
}
do {
$prevLength = $length;
$last = $length - 1;
$chr = \ord($string[$last]);
$sub = (($chr - 1) >> 8 ) & 1;
$length -= $sub;
$last -= $sub;
$chr = \ord($string[$last]);
$sub = (((0x08 - $chr) & ($chr - 0x0a)) >> 8) & 1;
$length -= $sub;
$last -= $sub;
$chr = \ord($string[$last]);
$sub = (((0x09 - $chr) & ($chr - 0x0b)) >> 8) & 1;
$length -= $sub;
$last -= $sub;
$chr = \ord($string[$last]);
$sub = (((0x0c - $chr) & ($chr - 0x0e)) >> 8) & 1;
$length -= $sub;
$last -= $sub;
$chr = \ord($string[$last]);
$sub = (((0x1f - $chr) & ($chr - 0x21)) >> 8) & 1;
$length -= $sub;
} while ($prevLength !== $length && $length > 0);
return (string) Core::ourSubstr($string, 0, $length);
}
public static function saveBytesToChecksummedAsciiSafeString($header, $bytes)
{
if (Core::ourStrlen($header) !== self::SERIALIZE_HEADER_BYTES) {
throw new Ex\EnvironmentIsBrokenException(
'Header must be ' . self::SERIALIZE_HEADER_BYTES . ' bytes.'
);
}
return Encoding::binToHex(
$header .
$bytes .
\hash(
self::CHECKSUM_HASH_ALGO,
$header . $bytes,
true
)
);
}
public static function loadBytesFromChecksummedAsciiSafeString($expected_header, $string)
{
if (Core::ourStrlen($expected_header) !== self::SERIALIZE_HEADER_BYTES) {
throw new Ex\EnvironmentIsBrokenException(
'Header must be 4 bytes.'
);
}
$bytes = Encoding::hexToBin($string);
if (Core::ourStrlen($bytes) < self::SERIALIZE_HEADER_BYTES + self::CHECKSUM_BYTE_SIZE) {
throw new Ex\BadFormatException(
'Encoded data is shorter than expected.'
);
}
$actual_header = (string) Core::ourSubstr($bytes, 0, self::SERIALIZE_HEADER_BYTES);
if ($actual_header !== $expected_header) {
throw new Ex\BadFormatException(
'Invalid header.'
);
}
$checked_bytes = (string) Core::ourSubstr(
$bytes,
0,
Core::ourStrlen($bytes) - self::CHECKSUM_BYTE_SIZE
);
$checksum_a = (string) Core::ourSubstr(
$bytes,
Core::ourStrlen($bytes) - self::CHECKSUM_BYTE_SIZE,
self::CHECKSUM_BYTE_SIZE
);
$checksum_b = \hash(self::CHECKSUM_HASH_ALGO, $checked_bytes, true);
if (! Core::hashEquals($checksum_a, $checksum_b)) {
throw new Ex\BadFormatException(
"Data is corrupted, the checksum doesn't match"
);
}
return (string) Core::ourSubstr(
$bytes,
self::SERIALIZE_HEADER_BYTES,
Core::ourStrlen($bytes) - self::SERIALIZE_HEADER_BYTES - self::CHECKSUM_BYTE_SIZE
);
}
}
<?php
namespace Defuse\Crypto;
final class DerivedKeys
{
private $akey = '';
private $ekey = '';
public function getAuthenticationKey()
{
return $this->akey;
}
public function getEncryptionKey()
{
return $this->ekey;
}
public function __construct($akey, $ekey)
{
$this->akey = $akey;
$this->ekey = $ekey;
}
}
<?php
namespace Defuse\Crypto;
use Defuse\Crypto\Exception as Ex;
class Crypto
{
public static function encrypt($plaintext, Key $key, $raw_binary = false)
{
return self::encryptInternal(
$plaintext,
KeyOrPassword::createFromKey($key),
$raw_binary
);
}
public static function encryptWithPassword($plaintext, $password, $raw_binary = false)
{
return self::encryptInternal(
$plaintext,
KeyOrPassword::createFromPassword($password),
$raw_binary
);
}
public static function decrypt($ciphertext, Key $key, $raw_binary = false)
{
return self::decryptInternal(
$ciphertext,
KeyOrPassword::createFromKey($key),
$raw_binary
);
}
public static function decryptWithPassword($ciphertext, $password, $raw_binary = false)
{
return self::decryptInternal(
$ciphertext,
KeyOrPassword::createFromPassword($password),
$raw_binary
);
}
public static function legacyDecrypt($ciphertext, $key)
{
RuntimeTests::runtimeTest();
if (Core::ourStrlen($ciphertext) <= Core::LEGACY_MAC_BYTE_SIZE) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Ciphertext is too short.'
);
}
$hmac = Core::ourSubstr($ciphertext, 0, Core::LEGACY_MAC_BYTE_SIZE);
if (!\is_string($hmac)) {
throw new Ex\EnvironmentIsBrokenException();
}
$ciphertext = Core::ourSubstr($ciphertext, Core::LEGACY_MAC_BYTE_SIZE);
if (!\is_string($ciphertext)) {
throw new Ex\EnvironmentIsBrokenException();
}
$akey = Core::HKDF(
Core::LEGACY_HASH_FUNCTION_NAME,
$key,
Core::LEGACY_KEY_BYTE_SIZE,
Core::LEGACY_AUTHENTICATION_INFO_STRING,
null
);
if (self::verifyHMAC($hmac, $ciphertext, $akey)) {
$ekey = Core::HKDF(
Core::LEGACY_HASH_FUNCTION_NAME,
$key,
Core::LEGACY_KEY_BYTE_SIZE,
Core::LEGACY_ENCRYPTION_INFO_STRING,
null
);
if (Core::ourStrlen($ciphertext) <= Core::LEGACY_BLOCK_BYTE_SIZE) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Ciphertext is too short.'
);
}
$iv = Core::ourSubstr($ciphertext, 0, Core::LEGACY_BLOCK_BYTE_SIZE);
if (!\is_string($iv)) {
throw new Ex\EnvironmentIsBrokenException();
}
$actualCiphertext = Core::ourSubstr($ciphertext, Core::LEGACY_BLOCK_BYTE_SIZE);
if (!\is_string($actualCiphertext)) {
throw new Ex\EnvironmentIsBrokenException();
}
$plaintext = self::plainDecrypt($actualCiphertext, $ekey, $iv, Core::LEGACY_CIPHER_METHOD);
return $plaintext;
} else {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Integrity check failed.'
);
}
}
private static function encryptInternal($plaintext, KeyOrPassword $secret, $raw_binary)
{
RuntimeTests::runtimeTest();
$salt = Core::secureRandom(Core::SALT_BYTE_SIZE);
$keys = $secret->deriveKeys($salt);
$ekey = $keys->getEncryptionKey();
$akey = $keys->getAuthenticationKey();
$iv = Core::secureRandom(Core::BLOCK_BYTE_SIZE);
$ciphertext = Core::CURRENT_VERSION . $salt . $iv . self::plainEncrypt($plaintext, $ekey, $iv);
$auth = \hash_hmac(Core::HASH_FUNCTION_NAME, $ciphertext, $akey, true);
$ciphertext = $ciphertext . $auth;
if ($raw_binary) {
return $ciphertext;
}
return Encoding::binToHex($ciphertext);
}
private static function decryptInternal($ciphertext, KeyOrPassword $secret, $raw_binary)
{
RuntimeTests::runtimeTest();
if (! $raw_binary) {
try {
$ciphertext = Encoding::hexToBin($ciphertext);
} catch (Ex\BadFormatException $ex) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Ciphertext has invalid hex encoding.'
);
}
}
if (Core::ourStrlen($ciphertext) < Core::MINIMUM_CIPHERTEXT_SIZE) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Ciphertext is too short.'
);
}
$header = Core::ourSubstr($ciphertext, 0, Core::HEADER_VERSION_SIZE);
if ($header !== Core::CURRENT_VERSION) {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Bad version header.'
);
}
$salt = Core::ourSubstr(
$ciphertext,
Core::HEADER_VERSION_SIZE,
Core::SALT_BYTE_SIZE
);
if (!\is_string($salt)) {
throw new Ex\EnvironmentIsBrokenException();
}
$iv = Core::ourSubstr(
$ciphertext,
Core::HEADER_VERSION_SIZE + Core::SALT_BYTE_SIZE,
Core::BLOCK_BYTE_SIZE
);
if (!\is_string($iv)) {
throw new Ex\EnvironmentIsBrokenException();
}
$hmac = Core::ourSubstr(
$ciphertext,
Core::ourStrlen($ciphertext) - Core::MAC_BYTE_SIZE,
Core::MAC_BYTE_SIZE
);
if (!\is_string($hmac)) {
throw new Ex\EnvironmentIsBrokenException();
}
$encrypted = Core::ourSubstr(
$ciphertext,
Core::HEADER_VERSION_SIZE + Core::SALT_BYTE_SIZE +
Core::BLOCK_BYTE_SIZE,
Core::ourStrlen($ciphertext) - Core::MAC_BYTE_SIZE - Core::SALT_BYTE_SIZE -
Core::BLOCK_BYTE_SIZE - Core::HEADER_VERSION_SIZE
);
if (!\is_string($encrypted)) {
throw new Ex\EnvironmentIsBrokenException();
}
$keys = $secret->deriveKeys($salt);
if (self::verifyHMAC($hmac, $header . $salt . $iv . $encrypted, $keys->getAuthenticationKey())) {
$plaintext = self::plainDecrypt($encrypted, $keys->getEncryptionKey(), $iv, Core::CIPHER_METHOD);
return $plaintext;
} else {
throw new Ex\WrongKeyOrModifiedCiphertextException(
'Integrity check failed.'
);
}
}
protected static function plainEncrypt($plaintext, $key, $iv)
{
Core::ensureConstantExists('OPENSSL_RAW_DATA');
Core::ensureFunctionExists('openssl_encrypt');
$ciphertext = \openssl_encrypt(
$plaintext,
Core::CIPHER_METHOD,
$key,
OPENSSL_RAW_DATA,
$iv
);
if (!\is_string($ciphertext)) {
throw new Ex\EnvironmentIsBrokenException(
'openssl_encrypt() failed.'
);
}
return $ciphertext;
}
protected static function plainDecrypt($ciphertext, $key, $iv, $cipherMethod)
{
Core::ensureConstantExists('OPENSSL_RAW_DATA');
Core::ensureFunctionExists('openssl_decrypt');
$plaintext = \openssl_decrypt(
$ciphertext,
$cipherMethod,
$key,
OPENSSL_RAW_DATA,
$iv
);
if (!\is_string($plaintext)) {
throw new Ex\EnvironmentIsBrokenException(
'openssl_decrypt() failed.'
);
}
return $plaintext;
}
protected static function verifyHMAC($expected_hmac, $message, $key)
{
$message_hmac = \hash_hmac(Core::HASH_FUNCTION_NAME, $message, $key, true);
return Core::hashEquals($message_hmac, $expected_hmac);
}
}
<?php
namespace Defuse\Crypto;
use Defuse\Crypto\Exception as Ex;
final class Core
{
const HEADER_VERSION_SIZE = 4;
const MINIMUM_CIPHERTEXT_SIZE = 84;
const CURRENT_VERSION = "\xDE\xF5\x02\x00";
const CIPHER_METHOD = 'aes-256-ctr';
const BLOCK_BYTE_SIZE = 16;
const KEY_BYTE_SIZE = 32;
const SALT_BYTE_SIZE = 32;
const MAC_BYTE_SIZE = 32;
const HASH_FUNCTION_NAME = 'sha256';
const ENCRYPTION_INFO_STRING = 'DefusePHP|V2|KeyForEncryption';
const AUTHENTICATION_INFO_STRING = 'DefusePHP|V2|KeyForAuthentication';
const BUFFER_BYTE_SIZE = 1048576;
const LEGACY_CIPHER_METHOD = 'aes-128-cbc';
const LEGACY_BLOCK_BYTE_SIZE = 16;
const LEGACY_KEY_BYTE_SIZE = 16;
const LEGACY_HASH_FUNCTION_NAME = 'sha256';
const LEGACY_MAC_BYTE_SIZE = 32;
const LEGACY_ENCRYPTION_INFO_STRING = 'DefusePHP|KeyForEncryption';
const LEGACY_AUTHENTICATION_INFO_STRING = 'DefusePHP|KeyForAuthentication';
public static function incrementCounter($ctr, $inc)
{
if (Core::ourStrlen($ctr) !== Core::BLOCK_BYTE_SIZE) {
throw new Ex\EnvironmentIsBrokenException(
'Trying to increment a nonce of the wrong size.'
);
}
if (! \is_int($inc)) {
throw new Ex\EnvironmentIsBrokenException(
'Trying to increment nonce by a non-integer.'
);
}
if ($inc < 0) {
throw new Ex\EnvironmentIsBrokenException(
'Trying to increment nonce by a negative amount.'
);
}
if ($inc > PHP_INT_MAX - 255) {
throw new Ex\EnvironmentIsBrokenException(
'Integer overflow may occur.'
);
}
for ($i = Core::BLOCK_BYTE_SIZE - 1; $i >= 0; --$i) {
$sum = \ord($ctr[$i]) + $inc;
if (! \is_int($sum)) {
throw new Ex\EnvironmentIsBrokenException(
'Integer overflow in CTR mode nonce increment.'
);
}
$ctr[$i] = \pack('C', $sum & 0xFF);
$inc = $sum >> 8;
}
return $ctr;
}
public static function secureRandom($octets)
{
self::ensureFunctionExists('random_bytes');
try {
return \random_bytes($octets);
} catch (\Exception $ex) {
throw new Ex\EnvironmentIsBrokenException(
'Your system does not have a secure random number generator.'
);
}
}
public static function HKDF($hash, $ikm, $length, $info = '', $salt = null)
{
static $nativeHKDF = null;
if ($nativeHKDF === null) {
$nativeHKDF = \is_callable('\\hash_hkdf');
}
if ($nativeHKDF) {
return \hash_hkdf($hash, $ikm, $length, $info, $salt);
}
$digest_length = Core::ourStrlen(\hash_hmac($hash, '', '', true));
if (empty($length) || ! \is_int($length) ||
$length < 0 || $length > 255 * $digest_length) {
throw new Ex\EnvironmentIsBrokenException(
'Bad output length requested of HKDF.'
);
}
if (\is_null($salt)) {
$salt = \str_repeat("\x00", $digest_length);
}
$prk = \hash_hmac($hash, $ikm, $salt, true);
if (Core::ourStrlen($prk) < $digest_length) {
throw new Ex\EnvironmentIsBrokenException();
}
$t = '';
$last_block = '';
for ($block_index = 1; Core::ourStrlen($t) < $length; ++$block_index) {
$last_block = \hash_hmac(
$hash,
$last_block . $info . \chr($block_index),
$prk,
true
);
$t .= $last_block;
}
$orm = Core::ourSubstr($t, 0, $length);
if (!\is_string($orm)) {
throw new Ex\EnvironmentIsBrokenException();
}
return $orm;
}
public static function hashEquals($expected, $given)
{
static $native = null;
if ($native === null) {
$native = \function_exists('hash_equals');
}
if ($native) {
return \hash_equals($expected, $given);
}
if (Core::ourStrlen($expected) !== Core::ourStrlen($given)) {
throw new Ex\EnvironmentIsBrokenException();
}
$blind = Core::secureRandom(32);
$message_compare = \hash_hmac(Core::HASH_FUNCTION_NAME, $given, $blind);
$correct_compare = \hash_hmac(Core::HASH_FUNCTION_NAME, $expected, $blind);
return $correct_compare === $message_compare;
}
public static function ensureConstantExists($name)
{
if (! \defined($name)) {
throw new Ex\EnvironmentIsBrokenException();
}
}
public static function ensureFunctionExists($name)
{
if (! \function_exists($name)) {
throw new Ex\EnvironmentIsBrokenException();
}
}
public static function ourStrlen($str)
{
static $exists = null;
if ($exists === null) {
$exists = \function_exists('mb_strlen');
}
if ($exists) {
$length = \mb_strlen($str, '8bit');
if ($length === false) {
throw new Ex\EnvironmentIsBrokenException();
}
return $length;
} else {
return \strlen($str);
}
}
public static function ourSubstr($str, $start, $length = null)
{
static $exists = null;
if ($exists === null) {
$exists = \function_exists('mb_substr');
}
if ($exists) {
if (! isset($length)) {
if ($start >= 0) {
$length = Core::ourStrlen($str) - $start;
} else {
$length = -$start;
}
}
if ($start === Core::ourStrlen($str) && $length === 0) {
return '';
}
if ($start > Core::ourStrlen($str)) {
return false;
}
$substr = \mb_substr($str, $start, $length, '8bit');
if (Core::ourStrlen($substr) !== $length) {
throw new Ex\EnvironmentIsBrokenException(
'Your version of PHP has bug #66797. Its implementation of
mb_substr() is incorrect. See the details here:
https://bugs.php.net/bug.php?id=66797'
);
}
return $substr;
}
if (isset($length)) {
return \substr($str, $start, $length);
} else {
return \substr($str, $start);
}
}
public static function pbkdf2($algorithm, $password, $salt, $count, $key_length, $raw_output = false)
{
if (! \is_string($algorithm)) {
throw new \InvalidArgumentException(
'pbkdf2(): algorithm must be a string'
);
}
if (! \is_string($password)) {
throw new \InvalidArgumentException(
'pbkdf2(): password must be a string'
);
}
if (! \is_string($salt)) {
throw new \InvalidArgumentException(
'pbkdf2(): salt must be a string'
);
}
$count += 0;
$key_length += 0;
$algorithm = \strtolower($algorithm);
if (! \in_array($algorithm, \hash_algos(), true)) {
throw new Ex\EnvironmentIsBrokenException(
'Invalid or unsupported hash algorithm.'
);
}
$ok_algorithms = [
'sha1', 'sha224', 'sha256', 'sha384', 'sha512',
'ripemd160', 'ripemd256', 'ripemd320', 'whirlpool',
];
if (! \in_array($algorithm, $ok_algorithms, true)) {
throw new Ex\EnvironmentIsBrokenException(
'Algorithm is not a secure cryptographic hash function.'
);
}
if ($count <= 0 || $key_length <= 0) {
throw new Ex\EnvironmentIsBrokenException(
'Invalid PBKDF2 parameters.'
);
}
if (\function_exists('hash_pbkdf2')) {
if (! $raw_output) {
$key_length = $key_length * 2;
}
return \hash_pbkdf2($algorithm, $password, $salt, $count, $key_length, $raw_output);
}
$hash_length = Core::ourStrlen(\hash($algorithm, '', true));
$block_count = \ceil($key_length / $hash_length);
$output = '';
for ($i = 1; $i <= $block_count; $i++) {
$last = $salt . \pack('N', $i);
$last = $xorsum = \hash_hmac($algorithm, $last, $password, true);
for ($j = 1; $j < $count; $j++) {
$xorsum ^= ($last = \hash_hmac($algorithm, $last, $password, true));
}
$output .= $xorsum;
}
if ($raw_output) {
return (string) Core::ourSubstr($output, 0, $key_length);
} else {
return Encoding::binToHex((string) Core::ourSubstr($output, 0, $key_length));
}
}
}
<?php
namespace Composer\Autoload;
class ClassLoader
{
private $prefixLengthsPsr4 = array();
private $prefixDirsPsr4 = array();
private $fallbackDirsPsr4 = array();
private $prefixesPsr0 = array();
private $fallbackDirsPsr0 = array();
private $useIncludePath = false;
private $classMap = array();
private $classMapAuthoritative = false;
private $missingClasses = array();
private $apcuPrefix;
public function getPrefixes()
{
if (!empty($this->prefixesPsr0)) {
return call_user_func_array('array_merge', $this->prefixesPsr0);
}
return array();
}
public function getPrefixesPsr4()
{
return $this->prefixDirsPsr4;
}
public function getFallbackDirs()
{
return $this->fallbackDirsPsr0;
}
public function getFallbackDirsPsr4()
{
return $this->fallbackDirsPsr4;
}
public function getClassMap()
{
return $this->classMap;
}
public function addClassMap(array $classMap)
{
if ($this->classMap) {
$this->classMap = array_merge($this->classMap, $classMap);
} else {
$this->classMap = $classMap;
}
}
public function add($prefix, $paths, $prepend = false)
{
if (!$prefix) {
if ($prepend) {
$this->fallbackDirsPsr0 = array_merge(
(array) $paths,
$this->fallbackDirsPsr0
);
} else {
$this->fallbackDirsPsr0 = array_merge(
$this->fallbackDirsPsr0,
(array) $paths
);
}
return;
}
$first = $prefix[0];
if (!isset($this->prefixesPsr0[$first][$prefix])) {
$this->prefixesPsr0[$first][$prefix] = (array) $paths;
return;
}
if ($prepend) {
$this->prefixesPsr0[$first][$prefix] = array_merge(
(array) $paths,
$this->prefixesPsr0[$first][$prefix]
);
} else {
$this->prefixesPsr0[$first][$prefix] = array_merge(
$this->prefixesPsr0[$first][$prefix],
(array) $paths
);
}
}
public function addPsr4($prefix, $paths, $prepend = false)
{
if (!$prefix) {
if ($prepend) {
$this->fallbackDirsPsr4 = array_merge(
(array) $paths,
$this->fallbackDirsPsr4
);
} else {
$this->fallbackDirsPsr4 = array_merge(
$this->fallbackDirsPsr4,
(array) $paths
);
}
} elseif (!isset($this->prefixDirsPsr4[$prefix])) {
$length = strlen($prefix);
if ('\\' !== $prefix[$length - 1]) {
throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
}
$this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
$this->prefixDirsPsr4[$prefix] = (array) $paths;
} elseif ($prepend) {
$this->prefixDirsPsr4[$prefix] = array_merge(
(array) $paths,
$this->prefixDirsPsr4[$prefix]
);
} else {
$this->prefixDirsPsr4[$prefix] = array_merge(
$this->prefixDirsPsr4[$prefix],
(array) $paths
);
}
}
public function set($prefix, $paths)
{
if (!$prefix) {
$this->fallbackDirsPsr0 = (array) $paths;
} else {
$this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
}
}
public function setPsr4($prefix, $paths)
{
if (!$prefix) {
$this->fallbackDirsPsr4 = (array) $paths;
} else {
$length = strlen($prefix);
if ('\\' !== $prefix[$length - 1]) {
throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
}
$this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
$this->prefixDirsPsr4[$prefix] = (array) $paths;
}
}
public function setUseIncludePath($useIncludePath)
{
$this->useIncludePath = $useIncludePath;
}
public function getUseIncludePath()
{
return $this->useIncludePath;
}
public function setClassMapAuthoritative($classMapAuthoritative)
{
$this->classMapAuthoritative = $classMapAuthoritative;
}
public function isClassMapAuthoritative()
{
return $this->classMapAuthoritative;
}
public function setApcuPrefix($apcuPrefix)
{
$this->apcuPrefix = function_exists('apcu_fetch') && ini_get('apc.enabled') ? $apcuPrefix : null;
}
public function getApcuPrefix()
{
return $this->apcuPrefix;
}
public function register($prepend = false)
{
spl_autoload_register(array($this, 'loadClass'), true, $prepend);
}
public function unregister()
{
spl_autoload_unregister(array($this, 'loadClass'));
}
public function loadClass($class)
{
if ($file = $this->findFile($class)) {
includeFile($file);
return true;
}
}
public function findFile($class)
{
if (isset($this->classMap[$class])) {
return $this->classMap[$class];
}
if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
return false;
}
if (null !== $this->apcuPrefix) {
$file = apcu_fetch($this->apcuPrefix.$class, $hit);
if ($hit) {
return $file;
}
}
$file = $this->findFileWithExtension($class, '.php');
if (false === $file && defined('HHVM_VERSION')) {
$file = $this->findFileWithExtension($class, '.hh');
}
if (null !== $this->apcuPrefix) {
apcu_add($this->apcuPrefix.$class, $file);
}
if (false === $file) {
$this->missingClasses[$class] = true;
}
return $file;
}
private function findFileWithExtension($class, $ext)
{
$logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
$first = $class[0];
if (isset($this->prefixLengthsPsr4[$first])) {
$subPath = $class;
while (false !== $lastPos = strrpos($subPath, '\\')) {
$subPath = substr($subPath, 0, $lastPos);
$search = $subPath.'\\';
if (isset($this->prefixDirsPsr4[$search])) {
foreach ($this->prefixDirsPsr4[$search] as $dir) {
$length = $this->prefixLengthsPsr4[$first][$search];
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
return $file;
}
}
}
}
}
foreach ($this->fallbackDirsPsr4 as $dir) {
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
return $file;
}
}
if (false !== $pos = strrpos($class, '\\')) {
$logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
. strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
} else {
$logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
}
if (isset($this->prefixesPsr0[$first])) {
foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
if (0 === strpos($class, $prefix)) {
foreach ($dirs as $dir) {
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
return $file;
}
}
}
}
}
foreach ($this->fallbackDirsPsr0 as $dir) {
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
return $file;
}
}
if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
return $file;
}
return false;
}
}
function includeFile($file)
{
include $file;
}
<?php
class ComposerAutoloaderInit26f9b7dd3fa9444dfae81bd4ebce4b9a
{
private static $loader;
public static function loadClassLoader($class)
{
if ('Composer\Autoload\ClassLoader' === $class) {
require __DIR__ . '/ClassLoader.php';
}
}
public static function getLoader()
{
if (null !== self::$loader) {
return self::$loader;
}
spl_autoload_register(array('ComposerAutoloaderInit26f9b7dd3fa9444dfae81bd4ebce4b9a', 'loadClassLoader'), true, true);
self::$loader = $loader = new \Composer\Autoload\ClassLoader();
spl_autoload_unregister(array('ComposerAutoloaderInit26f9b7dd3fa9444dfae81bd4ebce4b9a', 'loadClassLoader'));
$useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION') && (!function_exists('zend_loader_file_encoded') || !zend_loader_file_encoded());
if ($useStaticLoader) {
require_once __DIR__ . '/autoload_static.php';
call_user_func(\Composer\Autoload\ComposerStaticInit26f9b7dd3fa9444dfae81bd4ebce4b9a::getInitializer($loader));
} else {
$map = require __DIR__ . '/autoload_namespaces.php';
foreach ($map as $namespace => $path) {
$loader->set($namespace, $path);
}
$map = require __DIR__ . '/autoload_psr4.php';
foreach ($map as $namespace => $path) {
$loader->setPsr4($namespace, $path);
}
$classMap = require __DIR__ . '/autoload_classmap.php';
if ($classMap) {
$loader->addClassMap($classMap);
}
}
$loader->register(true);
if ($useStaticLoader) {
$includeFiles = Composer\Autoload\ComposerStaticInit26f9b7dd3fa9444dfae81bd4ebce4b9a::$files;
} else {
$includeFiles = require __DIR__ . '/autoload_files.php';
}
foreach ($includeFiles as $fileIdentifier => $file) {
composerRequire26f9b7dd3fa9444dfae81bd4ebce4b9a($fileIdentifier, $file);
}
return $loader;
}
}
function composerRequire26f9b7dd3fa9444dfae81bd4ebce4b9a($fileIdentifier, $file)
{
if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
require $file;
$GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
}
}
<?php
namespace Composer\Autoload;
class ComposerStaticInit26f9b7dd3fa9444dfae81bd4ebce4b9a
{
public static $files = array (
'5255c38a0faeba867671b61dfda6d864' => __DIR__ . '/..' . '/paragonie/random_compat/lib/random.php',
);
public static $prefixLengthsPsr4 = array (
'D' =>
array (
'Defuse\\Crypto\\' => 14,
),
);
public static $prefixDirsPsr4 = array (
'Defuse\\Crypto\\' =>
array (
0 => __DIR__ . '/../..' . '/src',
),
);
public static function getInitializer(ClassLoader $loader)
{
return \Closure::bind(function () use ($loader) {
$loader->prefixLengthsPsr4 = ComposerStaticInit26f9b7dd3fa9444dfae81bd4ebce4b9a::$prefixLengthsPsr4;
$loader->prefixDirsPsr4 = ComposerStaticInit26f9b7dd3fa9444dfae81bd4ebce4b9a::$prefixDirsPsr4;
}, null, ClassLoader::class);
}
}
<?php
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
'5255c38a0faeba867671b61dfda6d864' => $vendorDir . '/paragonie/random_compat/lib/random.php',
);
<?php
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
);
<?php
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
'Defuse\\Crypto\\' => array($baseDir . '/src'),
);
<?php
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
);
<?php
if (!is_callable('random_int')) {
function random_int($min, $max)
{
try {
$min = RandomCompat_intval($min);
} catch (TypeError $ex) {
throw new TypeError(
'random_int(): $min must be an integer'
);
}
try {
$max = RandomCompat_intval($max);
} catch (TypeError $ex) {
throw new TypeError(
'random_int(): $max must be an integer'
);
}
if ($min > $max) {
throw new Error(
'Minimum value must be less than or equal to the maximum value'
);
}
if ($max === $min) {
return $min;
}
$attempts = $bits = $bytes = $mask = $valueShift = 0;
$range = $max - $min;
if (!is_int($range)) {
$bytes = PHP_INT_SIZE;
$mask = ~0;
} else {
while ($range > 0) {
if ($bits % 8 === 0) {
++$bytes;
}
++$bits;
$range >>= 1;
$mask = $mask << 1 | 1;
}
$valueShift = $min;
}
$val = 0;
do {
if ($attempts > 128) {
throw new Exception(
'random_int: RNG is broken - too many rejections'
);
}
$randomByteString = random_bytes($bytes);
$val &= 0;
for ($i = 0; $i < $bytes; ++$i) {
$val |= ord($randomByteString[$i]) << ($i * 8);
}
$val &= $mask;
$val += $valueShift;
++$attempts;
} while (!is_int($val) || $val > $max || $val < $min);
return (int)$val;
}
}
<?php
if (!is_callable('random_bytes')) {
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
throw new TypeError(
'random_bytes(): $bytes must be an integer'
);
}
if ($bytes < 1) {
throw new Error(
'Length must be greater than 0'
);
}
$buf = @mcrypt_create_iv($bytes, MCRYPT_DEV_URANDOM);
if (
$buf !== false
&&
RandomCompat_strlen($buf) === $bytes
) {
return $buf;
}
throw new Exception(
'Could not gather sufficient random data'
);
}
}
<?php
if (!is_callable('random_bytes')) {
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
throw new TypeError(
'random_bytes(): $bytes must be an integer'
);
}
if ($bytes < 1) {
throw new Error(
'Length must be greater than 0'
);
}
$buf = '';
if ($bytes > 2147483647) {
for ($i = 0; $i < $bytes; $i += 1073741824) {
$n = ($bytes - $i) > 1073741824
? 1073741824
: $bytes - $i;
$buf .= Sodium::randombytes_buf($n);
}
} else {
$buf .= Sodium::randombytes_buf($bytes);
}
if (is_string($buf)) {
if (RandomCompat_strlen($buf) === $bytes) {
return $buf;
}
}
throw new Exception(
'Could not gather sufficient random data'
);
}
}
<?php
if (!is_callable('random_bytes')) {
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
throw new TypeError(
'random_bytes(): $bytes must be an integer'
);
}
if ($bytes < 1) {
throw new Error(
'Length must be greater than 0'
);
}
if ($bytes > 2147483647) {
$buf = '';
for ($i = 0; $i < $bytes; $i += 1073741824) {
$n = ($bytes - $i) > 1073741824
? 1073741824
: $bytes - $i;
$buf .= \Sodium\randombytes_buf($n);
}
} else {
$buf = \Sodium\randombytes_buf($bytes);
}
if ($buf !== false) {
if (RandomCompat_strlen($buf) === $bytes) {
return $buf;
}
}
throw new Exception(
'Could not gather sufficient random data'
);
}
}
<?php
if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
define('RANDOM_COMPAT_READ_BUFFER', 8);
}
if (!is_callable('random_bytes')) {
function random_bytes($bytes)
{
static $fp = null;
if (empty($fp)) {
$fp = fopen('/dev/urandom', 'rb');
if (!empty($fp)) {
$st = fstat($fp);
if (($st['mode'] & 0170000) !== 020000) {
fclose($fp);
$fp = false;
}
}
if (!empty($fp)) {
if (is_callable('stream_set_read_buffer')) {
stream_set_read_buffer($fp, RANDOM_COMPAT_READ_BUFFER);
}
if (is_callable('stream_set_chunk_size')) {
stream_set_chunk_size($fp, RANDOM_COMPAT_READ_BUFFER);
}
}
}
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
throw new TypeError(
'random_bytes(): $bytes must be an integer'
);
}
if ($bytes < 1) {
throw new Error(
'Length must be greater than 0'
);
}
if (!empty($fp)) {
$remaining = $bytes;
$buf = '';
do {
$read = fread($fp, $remaining);
if (!is_string($read)) {
if ($read === false) {
$buf = false;
break;
}
}
$remaining -= RandomCompat_strlen($read);
$buf = $buf . $read;
} while ($remaining > 0);
if (is_string($buf)) {
if (RandomCompat_strlen($buf) === $bytes) {
return $buf;
}
}
}
throw new Exception(
'Error reading from source device'
);
}
}
<?php
if (!is_callable('random_bytes')) {
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
throw new TypeError(
'random_bytes(): $bytes must be an integer'
);
}
if ($bytes < 1) {
throw new Error(
'Length must be greater than 0'
);
}
$buf = '';
if (!class_exists('COM')) {
throw new Error(
'COM does not exist'
);
}
$util = new COM('CAPICOM.Utilities.1');
$execCount = 0;
do {
$buf .= base64_decode($util->GetRandom($bytes, 0));
if (RandomCompat_strlen($buf) >= $bytes) {
return RandomCompat_substr($buf, 0, $bytes);
}
++$execCount;
} while ($execCount < $bytes);
throw new Exception(
'Could not gather sufficient random data'
);
}
}<?php
if (!defined('PHP_VERSION_ID')) {
$RandomCompatversion = array_map('intval', explode('.', PHP_VERSION));
define(
'PHP_VERSION_ID',
$RandomCompatversion[0] * 10000
+ $RandomCompatversion[1] * 100
+ $RandomCompatversion[2]
);
$RandomCompatversion = null;
}
if (PHP_VERSION_ID >= 70000) {
return;
}
if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
define('RANDOM_COMPAT_READ_BUFFER', 8);
}
$RandomCompatDIR = dirname(__FILE__);
require_once $RandomCompatDIR . '/byte_safe_strings.php';
require_once $RandomCompatDIR . '/cast_to_int.php';
require_once $RandomCompatDIR . '/error_polyfill.php';
if (!is_callable('random_bytes')) {
if (extension_loaded('libsodium')) {
if (PHP_VERSION_ID >= 50300 && is_callable('\\Sodium\\randombytes_buf')) {
require_once $RandomCompatDIR . '/random_bytes_libsodium.php';
} elseif (method_exists('Sodium', 'randombytes_buf')) {
require_once $RandomCompatDIR . '/random_bytes_libsodium_legacy.php';
}
}
if (DIRECTORY_SEPARATOR === '/') {
$RandomCompatUrandom = true;
$RandomCompat_basedir = ini_get('open_basedir');
if (!empty($RandomCompat_basedir)) {
$RandomCompat_open_basedir = explode(
PATH_SEPARATOR,
strtolower($RandomCompat_basedir)
);
$RandomCompatUrandom = (array() !== array_intersect(
array('/dev', '/dev/', '/dev/urandom'),
$RandomCompat_open_basedir
));
$RandomCompat_open_basedir = null;
}
if (
!is_callable('random_bytes')
&&
$RandomCompatUrandom
&&
@is_readable('/dev/urandom')
) {
require_once $RandomCompatDIR . '/random_bytes_dev_urandom.php';
}
$RandomCompat_basedir = null;
} else {
$RandomCompatUrandom = false;
}
if (
!is_callable('random_bytes')
&&
(DIRECTORY_SEPARATOR === '/' || PHP_VERSION_ID >= 50307)
&&
(
DIRECTORY_SEPARATOR !== '/' ||
(PHP_VERSION_ID <= 50609 || PHP_VERSION_ID >= 50613)
)
&&
extension_loaded('mcrypt')
) {
require_once $RandomCompatDIR . '/random_bytes_mcrypt.php';
}
$RandomCompatUrandom = null;
if (
!is_callable('random_bytes')
&&
extension_loaded('com_dotnet')
&&
class_exists('COM')
) {
$RandomCompat_disabled_classes = preg_split(
'#\s*,\s*#',
strtolower(ini_get('disable_classes'))
);
if (!in_array('com', $RandomCompat_disabled_classes)) {
try {
$RandomCompatCOMtest = new COM('CAPICOM.Utilities.1');
if (method_exists($RandomCompatCOMtest, 'GetRandom')) {
require_once $RandomCompatDIR . '/random_bytes_com_dotnet.php';
}
} catch (com_exception $e) {
}
}
$RandomCompat_disabled_classes = null;
$RandomCompatCOMtest = null;
}
if (!is_callable('random_bytes')) {
function random_bytes($length)
{
unset($length);
throw new Exception(
'There is no suitable CSPRNG installed on your system'
);
}
}
}
if (!is_callable('random_int')) {
require_once $RandomCompatDIR . '/random_int.php';
}
$RandomCompatDIR = null;
<?php
if (!class_exists('Error', false)) {
class Error extends Exception
{
}
}
if (!class_exists('TypeError', false)) {
if (is_subclass_of('Error', 'Exception')) {
class TypeError extends Error
{
}
} else {
class TypeError extends Exception
{
}
}
}
<?php
if (!is_callable('RandomCompat_intval')) {
function RandomCompat_intval($number, $fail_open = false)
{
if (is_int($number) || is_float($number)) {
$number += 0;
} elseif (is_numeric($number)) {
$number += 0;
}
if (
is_float($number)
&&
$number > ~PHP_INT_MAX
&&
$number < PHP_INT_MAX
) {
$number = (int) $number;
}
if (is_int($number)) {
return (int) $number;
} elseif (!$fail_open) {
throw new TypeError(
'Expected an integer.'
);
}
return $number;
}
}
<?php
if (!is_callable('RandomCompat_strlen')) {
if (
defined('MB_OVERLOAD_STRING') &&
ini_get('mbstring.func_overload') & MB_OVERLOAD_STRING
) {
function RandomCompat_strlen($binary_string)
{
if (!is_string($binary_string)) {
throw new TypeError(
'RandomCompat_strlen() expects a string'
);
}
return (int) mb_strlen($binary_string, '8bit');
}
} else {
function RandomCompat_strlen($binary_string)
{
if (!is_string($binary_string)) {
throw new TypeError(
'RandomCompat_strlen() expects a string'
);
}
return (int) strlen($binary_string);
}
}
}
if (!is_callable('RandomCompat_substr')) {
if (
defined('MB_OVERLOAD_STRING')
&&
ini_get('mbstring.func_overload') & MB_OVERLOAD_STRING
) {
function RandomCompat_substr($binary_string, $start, $length = null)
{
if (!is_string($binary_string)) {
throw new TypeError(
'RandomCompat_substr(): First argument should be a string'
);
}
if (!is_int($start)) {
throw new TypeError(
'RandomCompat_substr(): Second argument should be an integer'
);
}
if ($length === null) {
$length = RandomCompat_strlen($binary_string) - $start;
} elseif (!is_int($length)) {
throw new TypeError(
'RandomCompat_substr(): Third argument should be an integer, or omitted'
);
}
if ($start === RandomCompat_strlen($binary_string) && $length === 0) {
return '';
}
if ($start > RandomCompat_strlen($binary_string)) {
return '';
}
return (string) mb_substr($binary_string, $start, $length, '8bit');
}
} else {
function RandomCompat_substr($binary_string, $start, $length = null)
{
if (!is_string($binary_string)) {
throw new TypeError(
'RandomCompat_substr(): First argument should be a string'
);
}
if (!is_int($start)) {
throw new TypeError(
'RandomCompat_substr(): Second argument should be an integer'
);
}
if ($length !== null) {
if (!is_int($length)) {
throw new TypeError(
'RandomCompat_substr(): Third argument should be an integer, or omitted'
);
}
return (string) substr($binary_string, $start, $length);
}
return (string) substr($binary_string, $start);
}
}
}
<?php
require_once 'lib/byte_safe_strings.php';
require_once 'lib/cast_to_int.php';
require_once 'lib/error_polyfill.php';
require_once 'other/ide_stubs/libsodium.php';
require_once 'lib/random.php';
$int = random_int(0, 65536);
<?php
require_once __DIR__ . '/composer/autoload_real.php';
return ComposerAutoloaderInit26f9b7dd3fa9444dfae81bd4ebce4b9a::getLoader();
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