Initial Commit

2024-11-30 18:24:12 -07:00
commit e8f7955c1c
5432 changed files with 1397750 additions and 0 deletions
--- a/dependencies/paragonie/constant_time_encoding/src/Base32Hex.php
+++ b/dependencies/paragonie/constant_time_encoding/src/Base32Hex.php
@@ -0,0 +1,98 @@
+<?php
+
+declare (strict_types=1);
+namespace WP_Ultimo\Dependencies\ParagonIE\ConstantTime;
+
+/**
+ *  Copyright (c) 2016 - 2022 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 Base32Hex
+ * [0-9][A-V]
+ *
+ * @package ParagonIE\ConstantTime
+ */
+abstract class Base32Hex extends Base32
+{
+    /**
+     * 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 > 0x30 && $src < 0x3a) ret += $src - 0x2e + 1; // -47
+        $ret += (0x2f - $src & $src - 0x3a) >> 8 & $src - 47;
+        // if ($src > 0x60 && $src < 0x77) ret += $src - 0x61 + 10 + 1; // -86
+        $ret += (0x60 - $src & $src - 0x77) >> 8 & $src - 86;
+        return $ret;
+    }
+    /**
+     * Uses bitwise operators instead of table-lookups to turn 5-bit integers
+     * into 8-bit integers.
+     *
+     * @param int $src
+     * @return int
+     */
+    protected static function decode5BitsUpper(int $src) : int
+    {
+        $ret = -1;
+        // if ($src > 0x30 && $src < 0x3a) ret += $src - 0x2e + 1; // -47
+        $ret += (0x2f - $src & $src - 0x3a) >> 8 & $src - 47;
+        // if ($src > 0x40 && $src < 0x57) ret += $src - 0x41 + 10 + 1; // -54
+        $ret += (0x40 - $src & $src - 0x57) >> 8 & $src - 54;
+        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
+    {
+        $src += 0x30;
+        // if ($src > 0x39) $src += 0x61 - 0x3a; // 39
+        $src += 0x39 - $src >> 8 & 39;
+        return \pack('C', $src);
+    }
+    /**
+     * 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
+    {
+        $src += 0x30;
+        // if ($src > 0x39) $src += 0x41 - 0x3a; // 7
+        $src += 0x39 - $src >> 8 & 7;
+        return \pack('C', $src);
+    }
+}