FM / src

/home/techb158/immovalet.com/vendor/paragonie/constant_time_encoding/src/

/home/techb158/immovalet.com/vendor/paragonie/constant_time_encoding/src

Name	Size	Mode	Actions
Base32.php	16096	0644	edit dl rm
Base32Hex.php	3417	0644	edit dl rm
Base64.php	8951	0644	edit dl rm
Base64DotSlash.php	3039	0644	edit dl rm
Base64DotSlashOrdered.php	2784	0644	edit dl rm
Base64UrlSafe.php	3228	0644	edit dl rm
Binary.php	2600	0644	edit dl rm
EncoderInterface.php	1984	0644	edit dl rm
Encoding.php	6526	0644	edit dl rm
Hex.php	5246	0644	edit dl rm
RFC4648.php	4238	0644	edit dl rm

Edit: /home/techb158/immovalet.com/vendor/paragonie/constant_time_encoding/src/Hex.php (5246B)

<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;

/**
 *  Copyright (c) 2016 - 2018 Paragon Initiative Enterprises.
 *  Copyright (c) 2014 Steve "Sc00bz" Thomas (steve at tobtu dot com)
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in all
 *  copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 *  SOFTWARE.
 */

/**
 * Class Hex
 * @package ParagonIE\ConstantTime
 */
abstract class Hex implements EncoderInterface
{
    /**
     * Convert a binary string into a hexadecimal string without cache-timing
     * leaks
     *
     * @param string $binString (raw binary)
     * @return string
     * @throws \TypeError
     */
    public static function encode(string $binString): string
    {
        /** @var string $hex */
        $hex = '';
        $len = Binary::safeStrlen($binString);
        for ($i = 0; $i < $len; ++$i) {
            /** @var array<int, int> $chunk */
            $chunk = \unpack('C', Binary::safeSubstr($binString, $i, 1));
            /** @var int $c */
            $c = $chunk[1] & 0xf;
            /** @var int $b */
            $b = $chunk[1] >> 4;

$hex .= pack(
                'CC',
                (87 + $b + ((($b - 10) >> 8) & ~38)),
                (87 + $c + ((($c - 10) >> 8) & ~38))
            );
        }
        return $hex;
    }

/**
     * Convert a binary string into a hexadecimal string without cache-timing
     * leaks, returning uppercase letters (as per RFC 4648)
     *
     * @param string $binString (raw binary)
     * @return string
     * @throws \TypeError
     */
    public static function encodeUpper(string $binString): string
    {
        /** @var string $hex */
        $hex = '';
        /** @var int $len */
        $len = Binary::safeStrlen($binString);

for ($i = 0; $i < $len; ++$i) {
            /** @var array<int, int> $chunk */
            $chunk = \unpack('C', Binary::safeSubstr($binString, $i, 2));
            /** @var int $c */
            $c = $chunk[1] & 0xf;
            /** @var int $b */
            $b = $chunk[1] >> 4;

$hex .= pack(
                'CC',
                (55 + $b + ((($b - 10) >> 8) & ~6)),
                (55 + $c + ((($c - 10) >> 8) & ~6))
            );
        }
        return $hex;
    }

/**
     * Convert a hexadecimal string into a binary string without cache-timing
     * leaks
     *
     * @param string $encodedString
     * @param bool $strictPadding
     * @return string (raw binary)
     * @throws \RangeException
     */
    public static function decode(string $encodedString, bool $strictPadding = false): string
    {
        /** @var int $hex_pos */
        $hex_pos = 0;
        /** @var string $bin */
        $bin = '';
        /** @var int $c_acc */
        $c_acc = 0;
        /** @var int $hex_len */
        $hex_len = Binary::safeStrlen($encodedString);
        /** @var int $state */
        $state = 0;
        if (($hex_len & 1) !== 0) {
            if ($strictPadding) {
                throw new \RangeException(
                    'Expected an even number of hexadecimal characters'
                );
            } else {
                $encodedString = '0' . $encodedString;
                ++$hex_len;
            }
        }

/** @var array<int, int> $chunk */
        $chunk = \unpack('C*', $encodedString);
        while ($hex_pos < $hex_len) {
            ++$hex_pos;
            /** @var int $c */
            $c = $chunk[$hex_pos];
            /** @var int $c_num */
            $c_num = $c ^ 48;
            /** @var int $c_num0 */
            $c_num0 = ($c_num - 10) >> 8;
            /** @var int $c_alpha */
            $c_alpha = ($c & ~32) - 55;
            /** @var int $c_alpha0 */
            $c_alpha0 = (($c_alpha - 10) ^ ($c_alpha - 16)) >> 8;

if (($c_num0 | $c_alpha0) === 0) {
                throw new \RangeException(
                    'Expected hexadecimal character'
                );
            }
            /** @var int $c_val */
            $c_val = ($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;
        }
        return $bin;
    }
}

$chunk */ $chunk = \unpack('C', Binary::safeSubstr($binString, $i, 1)); /** @var int $c */ $c = $chunk[1] & 0xf; /** @var int $b */ $b = $chunk[1] >> 4; $hex .= pack( 'CC', (87 + $b + ((($b - 10) >> 8) & ~38)), (87 + $c + ((($c - 10) >> 8) & ~38)) ); } return $hex; } /** * Convert a binary string into a hexadecimal string without cache-timing * leaks, returning uppercase letters (as per RFC 4648) * * @param string $binString (raw binary) * @return string * @throws \TypeError */ public static function encodeUpper(string $binString): string { /** @var string $hex */ $hex = ''; /** @var int $len */ $len = Binary::safeStrlen($binString); for ($i = 0; $i < $len; ++$i) { /** @var array $chunk */ $chunk = \unpack('C', Binary::safeSubstr($binString, $i, 2)); /** @var int $c */ $c = $chunk[1] & 0xf; /** @var int $b */ $b = $chunk[1] >> 4; $hex .= pack( 'CC', (55 + $b + ((($b - 10) >> 8) & ~6)), (55 + $c + ((($c - 10) >> 8) & ~6)) ); } return $hex; } /** * Convert a hexadecimal string into a binary string without cache-timing * leaks * * @param string $encodedString * @param bool $strictPadding * @return string (raw binary) * @throws \RangeException */ public static function decode(string $encodedString, bool $strictPadding = false): string { /** @var int $hex_pos */ $hex_pos = 0; /** @var string $bin */ $bin = ''; /** @var int $c_acc */ $c_acc = 0; /** @var int $hex_len */ $hex_len = Binary::safeStrlen($encodedString); /** @var int $state */ $state = 0; if (($hex_len & 1) !== 0) { if ($strictPadding) { throw new \RangeException( 'Expected an even number of hexadecimal characters' ); } else { $encodedString = '0' . $encodedString; ++$hex_len; } } /** @var array $chunk */ $chunk = \unpack('C*', $encodedString); while ($hex_pos < $hex_len) { ++$hex_pos; /** @var int $c */ $c = $chunk[$hex_pos]; /** @var int $c_num */ $c_num = $c ^ 48; /** @var int $c_num0 */ $c_num0 = ($c_num - 10) >> 8; /** @var int $c_alpha */ $c_alpha = ($c & ~32) - 55; /** @var int $c_alpha0 */ $c_alpha0 = (($c_alpha - 10) ^ ($c_alpha - 16)) >> 8; if (($c_num0 | $c_alpha0) === 0) { throw new \RangeException( 'Expected hexadecimal character' ); } /** @var int $c_val */ $c_val = ($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; } return $bin; } }