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Diffstat (limited to 'srcs/phpmyadmin/vendor/paragonie/constant_time_encoding/src/Base32.php')
-rw-r--r--srcs/phpmyadmin/vendor/paragonie/constant_time_encoding/src/Base32.php471
1 files changed, 0 insertions, 471 deletions
diff --git a/srcs/phpmyadmin/vendor/paragonie/constant_time_encoding/src/Base32.php b/srcs/phpmyadmin/vendor/paragonie/constant_time_encoding/src/Base32.php
deleted file mode 100644
index 18c0ac9..0000000
--- a/srcs/phpmyadmin/vendor/paragonie/constant_time_encoding/src/Base32.php
+++ /dev/null
@@ -1,471 +0,0 @@
-<?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 Base32
- * [A-Z][2-7]
- *
- * @package ParagonIE\ConstantTime
- */
-abstract class Base32 implements EncoderInterface
-{
- /**
- * Decode a Base32-encoded string into raw binary
- *
- * @param string $src
- * @return string
- * @throws \TypeError
- */
- public static function decode(string $src, bool $strictPadding = false): string
- {
- return static::doDecode($src, false, $strictPadding);
- }
-
- /**
- * Decode an uppercase Base32-encoded string into raw binary
- *
- * @param string $src
- * @return string
- * @throws \TypeError
- */
- public static function decodeUpper(string $src, bool $strictPadding = false): string
- {
- return static::doDecode($src, true, $strictPadding);
- }
-
- /**
- * Encode into Base32 (RFC 4648)
- *
- * @param string $src
- * @return string
- * @throws \TypeError
- */
- public static function encode(string $src): string
- {
- return static::doEncode($src, false, true);
- }
- /**
- * Encode into Base32 (RFC 4648)
- *
- * @param string $src
- * @return string
- * @throws \TypeError
- */
- public static function encodeUnpadded(string $src): string
- {
- return static::doEncode($src, false, false);
- }
-
- /**
- * Encode into uppercase Base32 (RFC 4648)
- *
- * @param string $src
- * @return string
- * @throws \TypeError
- */
- public static function encodeUpper(string $src): string
- {
- return static::doEncode($src, true, true);
- }
-
- /**
- * Encode into uppercase Base32 (RFC 4648)
- *
- * @param string $src
- * @return string
- * @throws \TypeError
- */
- public static function encodeUpperUnpadded(string $src): string
- {
- return static::doEncode($src, true, false);
- }
-
- /**
- * Uses bitwise operators instead of table-lookups to turn 5-bit integers
- * into 8-bit integers.
- *
- * @param int $src
- * @return int
- */
- protected static function decode5Bits(int $src): int
- {
- $ret = -1;
-
- // if ($src > 96 && $src < 123) $ret += $src - 97 + 1; // -64
- $ret += (((0x60 - $src) & ($src - 0x7b)) >> 8) & ($src - 96);
-
- // if ($src > 0x31 && $src < 0x38) $ret += $src - 24 + 1; // -23
- $ret += (((0x31 - $src) & ($src - 0x38)) >> 8) & ($src - 23);
-
- return $ret;
- }
-
- /**
- * Uses bitwise operators instead of table-lookups to turn 5-bit integers
- * into 8-bit integers.
- *
- * Uppercase variant.
- *
- * @param int $src
- * @return int
- */
- protected static function decode5BitsUpper(int $src): int
- {
- $ret = -1;
-
- // if ($src > 64 && $src < 91) $ret += $src - 65 + 1; // -64
- $ret += (((0x40 - $src) & ($src - 0x5b)) >> 8) & ($src - 64);
-
- // if ($src > 0x31 && $src < 0x38) $ret += $src - 24 + 1; // -23
- $ret += (((0x31 - $src) & ($src - 0x38)) >> 8) & ($src - 23);
-
- return $ret;
- }
-
- /**
- * Uses bitwise operators instead of table-lookups to turn 8-bit integers
- * into 5-bit integers.
- *
- * @param int $src
- * @return string
- */
- protected static function encode5Bits(int $src): string
- {
- $diff = 0x61;
-
- // if ($src > 25) $ret -= 72;
- $diff -= ((25 - $src) >> 8) & 73;
-
- return \pack('C', $src + $diff);
- }
-
- /**
- * Uses bitwise operators instead of table-lookups to turn 8-bit integers
- * into 5-bit integers.
- *
- * Uppercase variant.
- *
- * @param int $src
- * @return string
- */
- protected static function encode5BitsUpper(int $src): string
- {
- $diff = 0x41;
-
- // if ($src > 25) $ret -= 40;
- $diff -= ((25 - $src) >> 8) & 41;
-
- return \pack('C', $src + $diff);
- }
-
-
- /**
- * Base32 decoding
- *
- * @param string $src
- * @param bool $upper
- * @param bool $strictPadding
- * @return string
- * @throws \TypeError
- * @psalm-suppress RedundantCondition
- */
- protected static function doDecode(string $src, bool $upper = false, bool $strictPadding = false): string
- {
- // We do this to reduce code duplication:
- $method = $upper
- ? 'decode5BitsUpper'
- : 'decode5Bits';
-
- // Remove padding
- $srcLen = Binary::safeStrlen($src);
- if ($srcLen === 0) {
- return '';
- }
- if ($strictPadding) {
- if (($srcLen & 7) === 0) {
- for ($j = 0; $j < 7; ++$j) {
- if ($src[$srcLen - 1] === '=') {
- $srcLen--;
- } else {
- break;
- }
- }
- }
- if (($srcLen & 7) === 1) {
- throw new \RangeException(
- 'Incorrect padding'
- );
- }
- } else {
- $src = \rtrim($src, '=');
- $srcLen = Binary::safeStrlen($src);
- }
-
- $err = 0;
- $dest = '';
- // Main loop (no padding):
- for ($i = 0; $i + 8 <= $srcLen; $i += 8) {
- /** @var array<int, int> $chunk */
- $chunk = \unpack('C*', Binary::safeSubstr($src, $i, 8));
- /** @var int $c0 */
- $c0 = static::$method($chunk[1]);
- /** @var int $c1 */
- $c1 = static::$method($chunk[2]);
- /** @var int $c2 */
- $c2 = static::$method($chunk[3]);
- /** @var int $c3 */
- $c3 = static::$method($chunk[4]);
- /** @var int $c4 */
- $c4 = static::$method($chunk[5]);
- /** @var int $c5 */
- $c5 = static::$method($chunk[6]);
- /** @var int $c6 */
- $c6 = static::$method($chunk[7]);
- /** @var int $c7 */
- $c7 = static::$method($chunk[8]);
-
- $dest .= \pack(
- 'CCCCC',
- (($c0 << 3) | ($c1 >> 2) ) & 0xff,
- (($c1 << 6) | ($c2 << 1) | ($c3 >> 4)) & 0xff,
- (($c3 << 4) | ($c4 >> 1) ) & 0xff,
- (($c4 << 7) | ($c5 << 2) | ($c6 >> 3)) & 0xff,
- (($c6 << 5) | ($c7 ) ) & 0xff
- );
- $err |= ($c0 | $c1 | $c2 | $c3 | $c4 | $c5 | $c6 | $c7) >> 8;
- }
- // The last chunk, which may have padding:
- if ($i < $srcLen) {
- /** @var array<int, int> $chunk */
- $chunk = \unpack('C*', Binary::safeSubstr($src, $i, $srcLen - $i));
- /** @var int $c0 */
- $c0 = static::$method($chunk[1]);
-
- if ($i + 6 < $srcLen) {
- /** @var int $c1 */
- $c1 = static::$method($chunk[2]);
- /** @var int $c2 */
- $c2 = static::$method($chunk[3]);
- /** @var int $c3 */
- $c3 = static::$method($chunk[4]);
- /** @var int $c4 */
- $c4 = static::$method($chunk[5]);
- /** @var int $c5 */
- $c5 = static::$method($chunk[6]);
- /** @var int $c6 */
- $c6 = static::$method($chunk[7]);
-
- $dest .= \pack(
- 'CCCC',
- (($c0 << 3) | ($c1 >> 2) ) & 0xff,
- (($c1 << 6) | ($c2 << 1) | ($c3 >> 4)) & 0xff,
- (($c3 << 4) | ($c4 >> 1) ) & 0xff,
- (($c4 << 7) | ($c5 << 2) | ($c6 >> 3)) & 0xff
- );
- $err |= ($c0 | $c1 | $c2 | $c3 | $c4 | $c5 | $c6) >> 8;
- } elseif ($i + 5 < $srcLen) {
- /** @var int $c1 */
- $c1 = static::$method($chunk[2]);
- /** @var int $c2 */
- $c2 = static::$method($chunk[3]);
- /** @var int $c3 */
- $c3 = static::$method($chunk[4]);
- /** @var int $c4 */
- $c4 = static::$method($chunk[5]);
- /** @var int $c5 */
- $c5 = static::$method($chunk[6]);
-
- $dest .= \pack(
- 'CCCC',
- (($c0 << 3) | ($c1 >> 2) ) & 0xff,
- (($c1 << 6) | ($c2 << 1) | ($c3 >> 4)) & 0xff,
- (($c3 << 4) | ($c4 >> 1) ) & 0xff,
- (($c4 << 7) | ($c5 << 2) ) & 0xff
- );
- $err |= ($c0 | $c1 | $c2 | $c3 | $c4 | $c5) >> 8;
- } elseif ($i + 4 < $srcLen) {
- /** @var int $c1 */
- $c1 = static::$method($chunk[2]);
- /** @var int $c2 */
- $c2 = static::$method($chunk[3]);
- /** @var int $c3 */
- $c3 = static::$method($chunk[4]);
- /** @var int $c4 */
- $c4 = static::$method($chunk[5]);
-
- $dest .= \pack(
- 'CCC',
- (($c0 << 3) | ($c1 >> 2) ) & 0xff,
- (($c1 << 6) | ($c2 << 1) | ($c3 >> 4)) & 0xff,
- (($c3 << 4) | ($c4 >> 1) ) & 0xff
- );
- $err |= ($c0 | $c1 | $c2 | $c3 | $c4) >> 8;
- } elseif ($i + 3 < $srcLen) {
- /** @var int $c1 */
- $c1 = static::$method($chunk[2]);
- /** @var int $c2 */
- $c2 = static::$method($chunk[3]);
- /** @var int $c3 */
- $c3 = static::$method($chunk[4]);
-
- $dest .= \pack(
- 'CC',
- (($c0 << 3) | ($c1 >> 2) ) & 0xff,
- (($c1 << 6) | ($c2 << 1) | ($c3 >> 4)) & 0xff
- );
- $err |= ($c0 | $c1 | $c2 | $c3) >> 8;
- } elseif ($i + 2 < $srcLen) {
- /** @var int $c1 */
- $c1 = static::$method($chunk[2]);
- /** @var int $c2 */
- $c2 = static::$method($chunk[3]);
-
- $dest .= \pack(
- 'CC',
- (($c0 << 3) | ($c1 >> 2) ) & 0xff,
- (($c1 << 6) | ($c2 << 1) ) & 0xff
- );
- $err |= ($c0 | $c1 | $c2) >> 8;
- } elseif ($i + 1 < $srcLen) {
- /** @var int $c1 */
- $c1 = static::$method($chunk[2]);
-
- $dest .= \pack(
- 'C',
- (($c0 << 3) | ($c1 >> 2) ) & 0xff
- );
- $err |= ($c0 | $c1) >> 8;
- } else {
- $dest .= \pack(
- 'C',
- (($c0 << 3) ) & 0xff
- );
- $err |= ($c0) >> 8;
- }
- }
- /** @var bool $check */
- $check = ($err === 0);
- if (!$check) {
- throw new \RangeException(
- 'Base32::doDecode() only expects characters in the correct base32 alphabet'
- );
- }
- return $dest;
- }
-
- /**
- * Base32 Encoding
- *
- * @param string $src
- * @param bool $upper
- * @param bool $pad
- * @return string
- * @throws \TypeError
- */
- protected static function doEncode(string $src, bool $upper = false, $pad = true): string
- {
- // We do this to reduce code duplication:
- $method = $upper
- ? 'encode5BitsUpper'
- : 'encode5Bits';
-
- $dest = '';
- $srcLen = Binary::safeStrlen($src);
-
- // Main loop (no padding):
- for ($i = 0; $i + 5 <= $srcLen; $i += 5) {
- /** @var array<int, int> $chunk */
- $chunk = \unpack('C*', Binary::safeSubstr($src, $i, 5));
- $b0 = $chunk[1];
- $b1 = $chunk[2];
- $b2 = $chunk[3];
- $b3 = $chunk[4];
- $b4 = $chunk[5];
- $dest .=
- static::$method( ($b0 >> 3) & 31) .
- static::$method((($b0 << 2) | ($b1 >> 6)) & 31) .
- static::$method((($b1 >> 1) ) & 31) .
- static::$method((($b1 << 4) | ($b2 >> 4)) & 31) .
- static::$method((($b2 << 1) | ($b3 >> 7)) & 31) .
- static::$method((($b3 >> 2) ) & 31) .
- static::$method((($b3 << 3) | ($b4 >> 5)) & 31) .
- static::$method( $b4 & 31);
- }
- // The last chunk, which may have padding:
- if ($i < $srcLen) {
- /** @var array<int, int> $chunk */
- $chunk = \unpack('C*', Binary::safeSubstr($src, $i, $srcLen - $i));
- $b0 = $chunk[1];
- if ($i + 3 < $srcLen) {
- $b1 = $chunk[2];
- $b2 = $chunk[3];
- $b3 = $chunk[4];
- $dest .=
- static::$method( ($b0 >> 3) & 31) .
- static::$method((($b0 << 2) | ($b1 >> 6)) & 31) .
- static::$method((($b1 >> 1) ) & 31) .
- static::$method((($b1 << 4) | ($b2 >> 4)) & 31) .
- static::$method((($b2 << 1) | ($b3 >> 7)) & 31) .
- static::$method((($b3 >> 2) ) & 31) .
- static::$method((($b3 << 3) ) & 31);
- if ($pad) {
- $dest .= '=';
- }
- } elseif ($i + 2 < $srcLen) {
- $b1 = $chunk[2];
- $b2 = $chunk[3];
- $dest .=
- static::$method( ($b0 >> 3) & 31) .
- static::$method((($b0 << 2) | ($b1 >> 6)) & 31) .
- static::$method((($b1 >> 1) ) & 31) .
- static::$method((($b1 << 4) | ($b2 >> 4)) & 31) .
- static::$method((($b2 << 1) ) & 31);
- if ($pad) {
- $dest .= '===';
- }
- } elseif ($i + 1 < $srcLen) {
- $b1 = $chunk[2];
- $dest .=
- static::$method( ($b0 >> 3) & 31) .
- static::$method((($b0 << 2) | ($b1 >> 6)) & 31) .
- static::$method((($b1 >> 1) ) & 31) .
- static::$method((($b1 << 4) ) & 31);
- if ($pad) {
- $dest .= '====';
- }
- } else {
- $dest .=
- static::$method( ($b0 >> 3) & 31) .
- static::$method( ($b0 << 2) & 31);
- if ($pad) {
- $dest .= '======';
- }
- }
- }
- return $dest;
- }
-}
generated by cgit (git 2.34.1) at 2026-05-16 07:35:25 +0000