From 19985dbb8c0aa66dc4bf7905abc1148de909097d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Anton=20Luka=20=C5=A0ijanec?= <anton@sijanec.eu>
Date: Tue, 11 Jan 2022 12:35:47 +0100
Subject: prvi-commit

---
 .../sodium_compat/src/Core32/Curve25519/Fe.php     | 185 +++++++++++++++++++++
 1 file changed, 185 insertions(+)
 create mode 100644 vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php

(limited to 'vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php')

diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php
new file mode 100644
index 0000000..5fe10f7
--- /dev/null
+++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php
@@ -0,0 +1,185 @@
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core32_Curve25519_Fe', false)) {
+    return;
+}
+
+/**
+ * Class ParagonIE_Sodium_Core32_Curve25519_Fe
+ *
+ * This represents a Field Element
+ */
+class ParagonIE_Sodium_Core32_Curve25519_Fe implements ArrayAccess
+{
+    /**
+     * @var array<int, ParagonIE_Sodium_Core32_Int32>
+     */
+    protected $container = array();
+
+    /**
+     * @var int
+     */
+    protected $size = 10;
+
+    /**
+     * @internal You should not use this directly from another application
+     *
+     * @param array<int, ParagonIE_Sodium_Core32_Int32> $array
+     * @param bool $save_indexes
+     * @return self
+     * @throws SodiumException
+     * @throws TypeError
+     */
+    public static function fromArray($array, $save_indexes = null)
+    {
+        $count = count($array);
+        if ($save_indexes) {
+            $keys = array_keys($array);
+        } else {
+            $keys = range(0, $count - 1);
+        }
+        $array = array_values($array);
+
+        $obj = new ParagonIE_Sodium_Core32_Curve25519_Fe();
+        if ($save_indexes) {
+            for ($i = 0; $i < $count; ++$i) {
+                $array[$i]->overflow = 0;
+                $obj->offsetSet($keys[$i], $array[$i]);
+            }
+        } else {
+            for ($i = 0; $i < $count; ++$i) {
+                $array[$i]->overflow = 0;
+                $obj->offsetSet($i, $array[$i]);
+            }
+        }
+        return $obj;
+    }
+
+    /**
+     * @internal You should not use this directly from another application
+     *
+     * @param array<int, int> $array
+     * @param bool $save_indexes
+     * @return self
+     * @throws SodiumException
+     * @throws TypeError
+     */
+    public static function fromIntArray($array, $save_indexes = null)
+    {
+        $count = count($array);
+        if ($save_indexes) {
+            $keys = array_keys($array);
+        } else {
+            $keys = range(0, $count - 1);
+        }
+        $array = array_values($array);
+        $set = array();
+        /** @var int $i */
+        /** @var int $v */
+        foreach ($array as $i => $v) {
+            $set[$i] = ParagonIE_Sodium_Core32_Int32::fromInt($v);
+        }
+
+        $obj = new ParagonIE_Sodium_Core32_Curve25519_Fe();
+        if ($save_indexes) {
+            for ($i = 0; $i < $count; ++$i) {
+                $set[$i]->overflow = 0;
+                $obj->offsetSet($keys[$i], $set[$i]);
+            }
+        } else {
+            for ($i = 0; $i < $count; ++$i) {
+                $set[$i]->overflow = 0;
+                $obj->offsetSet($i, $set[$i]);
+            }
+        }
+        return $obj;
+    }
+
+    /**
+     * @internal You should not use this directly from another application
+     *
+     * @param mixed $offset
+     * @param mixed $value
+     * @return void
+     * @throws SodiumException
+     * @throws TypeError
+     */
+    public function offsetSet($offset, $value)
+    {
+        if (!($value instanceof ParagonIE_Sodium_Core32_Int32)) {
+            throw new InvalidArgumentException('Expected an instance of ParagonIE_Sodium_Core32_Int32');
+        }
+        if (is_null($offset)) {
+            $this->container[] = $value;
+        } else {
+            ParagonIE_Sodium_Core32_Util::declareScalarType($offset, 'int', 1);
+            $this->container[(int) $offset] = $value;
+        }
+    }
+
+    /**
+     * @internal You should not use this directly from another application
+     *
+     * @param mixed $offset
+     * @return bool
+     * @psalm-suppress MixedArrayOffset
+     */
+    public function offsetExists($offset)
+    {
+        return isset($this->container[$offset]);
+    }
+
+    /**
+     * @internal You should not use this directly from another application
+     *
+     * @param mixed $offset
+     * @return void
+     * @psalm-suppress MixedArrayOffset
+     */
+    public function offsetUnset($offset)
+    {
+        unset($this->container[$offset]);
+    }
+
+    /**
+     * @internal You should not use this directly from another application
+     *
+     * @param mixed $offset
+     * @return ParagonIE_Sodium_Core32_Int32
+     * @psalm-suppress MixedArrayOffset
+     */
+    public function offsetGet($offset)
+    {
+        if (!isset($this->container[$offset])) {
+            $this->container[(int) $offset] = new ParagonIE_Sodium_Core32_Int32();
+        }
+        /** @var ParagonIE_Sodium_Core32_Int32 $get */
+        $get = $this->container[$offset];
+        return $get;
+    }
+
+    /**
+     * @internal You should not use this directly from another application
+     *
+     * @return array
+     */
+    public function __debugInfo()
+    {
+        if (empty($this->container)) {
+            return array();
+        }
+        $c = array(
+            (int) ($this->container[0]->toInt()),
+            (int) ($this->container[1]->toInt()),
+            (int) ($this->container[2]->toInt()),
+            (int) ($this->container[3]->toInt()),
+            (int) ($this->container[4]->toInt()),
+            (int) ($this->container[5]->toInt()),
+            (int) ($this->container[6]->toInt()),
+            (int) ($this->container[7]->toInt()),
+            (int) ($this->container[8]->toInt()),
+            (int) ($this->container[9]->toInt())
+        );
+        return array(implode(', ', $c));
+    }
+}
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