Server : Apache System : Linux pod-100823:apache2_74:v0.5.7 5.4.0-1138-gcp #147~18.04.1-Ubuntu SMP Mon Oct 7 21:46:26 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33.7 Disable Function : apache_child_terminate,apache_get_modules,apache_get_version,apache_getenv,apache_note,apache_setenv,disk_free_space,disk_total_space,diskfreespace,dl,exec,fastcgi_finish_request,link,opcache_compile_file,opcache_get_configuration,opcache_invalidate,opcache_is_script_cached,opcache_reset,passthru,pclose,pcntl_exec,popen,posix_getpid,posix_getppid,posix_getpwuid,posix_kill,posix_mkfifo,posix_setegid,posix_seteuid,posix_setgid,posix_setpgid,posix_setsid,posix_setuid,posix_uname,proc_close,proc_get_status,proc_nice,proc_open,proc_terminate,realpath_cache_get,shell_exec,show_source,symlink,system Directory : /nas/content/live/attorneyexperi/wp-includes/sodium_compat/src/Core32/ChaCha20/ |
<?php if (class_exists('ParagonIE_Sodium_Core_ChaCha20_Ctx', false)) { return; } /** * Class ParagonIE_Sodium_Core32_ChaCha20_Ctx */ class ParagonIE_Sodium_Core32_ChaCha20_Ctx extends ParagonIE_Sodium_Core32_Util implements ArrayAccess { /** * @var SplFixedArray internally, <int, ParagonIE_Sodium_Core32_Int32> */ protected $container; /** * ParagonIE_Sodium_Core_ChaCha20_Ctx constructor. * * @internal You should not use this directly from another application * * @param string $key ChaCha20 key. * @param string $iv Initialization Vector (a.k.a. nonce). * @param string $counter The initial counter value. * Defaults to 8 0x00 bytes. * @throws InvalidArgumentException * @throws SodiumException * @throws TypeError */ public function __construct($key = '', $iv = '', $counter = '') { if (self::strlen($key) !== 32) { throw new InvalidArgumentException('ChaCha20 expects a 256-bit key.'); } if (self::strlen($iv) !== 8) { throw new InvalidArgumentException('ChaCha20 expects a 64-bit nonce.'); } $this->container = new SplFixedArray(16); /* "expand 32-byte k" as per ChaCha20 spec */ $this->container[0] = new ParagonIE_Sodium_Core32_Int32(array(0x6170, 0x7865)); $this->container[1] = new ParagonIE_Sodium_Core32_Int32(array(0x3320, 0x646e)); $this->container[2] = new ParagonIE_Sodium_Core32_Int32(array(0x7962, 0x2d32)); $this->container[3] = new ParagonIE_Sodium_Core32_Int32(array(0x6b20, 0x6574)); $this->container[4] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 0, 4)); $this->container[5] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 4, 4)); $this->container[6] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 8, 4)); $this->container[7] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 12, 4)); $this->container[8] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 16, 4)); $this->container[9] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 20, 4)); $this->container[10] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 24, 4)); $this->container[11] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 28, 4)); if (empty($counter)) { $this->container[12] = new ParagonIE_Sodium_Core32_Int32(); $this->container[13] = new ParagonIE_Sodium_Core32_Int32(); } else { $this->container[12] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($counter, 0, 4)); $this->container[13] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($counter, 4, 4)); } $this->container[14] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 0, 4)); $this->container[15] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 4, 4)); } /** * @internal You should not use this directly from another application * * @param int $offset * @param int|ParagonIE_Sodium_Core32_Int32 $value * @return void */ #[ReturnTypeWillChange] public function offsetSet($offset, $value) { if (!is_int($offset)) { throw new InvalidArgumentException('Expected an integer'); } if ($value instanceof ParagonIE_Sodium_Core32_Int32) { /* } elseif (is_int($value)) { $value = ParagonIE_Sodium_Core32_Int32::fromInt($value); */ } else { throw new InvalidArgumentException('Expected an integer'); } $this->container[$offset] = $value; } /** * @internal You should not use this directly from another application * * @param int $offset * @return bool * @psalm-suppress MixedArrayOffset */ #[ReturnTypeWillChange] public function offsetExists($offset) { return isset($this->container[$offset]); } /** * @internal You should not use this directly from another application * * @param int $offset * @return void * @psalm-suppress MixedArrayOffset */ #[ReturnTypeWillChange] public function offsetUnset($offset) { unset($this->container[$offset]); } /** * @internal You should not use this directly from another application * * @param int $offset * @return mixed|null * @psalm-suppress MixedArrayOffset */ #[ReturnTypeWillChange] public function offsetGet($offset) { return isset($this->container[$offset]) ? $this->container[$offset] : null; } }