--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/sodium_compat/src/Core/AEGIS128L.php	Fri Sep 05 18:52:52 2025 +0200
@@ -0,0 +1,119 @@
+<?php
+
+if (!defined('SODIUM_COMPAT_AEGIS_C0')) {
+    define('SODIUM_COMPAT_AEGIS_C0', "\x00\x01\x01\x02\x03\x05\x08\x0d\x15\x22\x37\x59\x90\xe9\x79\x62");
+}
+if (!defined('SODIUM_COMPAT_AEGIS_C1')) {
+    define('SODIUM_COMPAT_AEGIS_C1', "\xdb\x3d\x18\x55\x6d\xc2\x2f\xf1\x20\x11\x31\x42\x73\xb5\x28\xdd");
+}
+
+class ParagonIE_Sodium_Core_AEGIS128L extends ParagonIE_Sodium_Core_AES
+{
+    /**
+     * @param string $ct
+     * @param string $tag
+     * @param string $ad
+     * @param string $key
+     * @param string $nonce
+     * @return string
+     * @throws SodiumException
+     */
+    public static function decrypt($ct, $tag, $ad, $key, $nonce)
+    {
+        $state = self::init($key, $nonce);
+        $ad_blocks = (self::strlen($ad) + 31) >> 5;
+        for ($i = 0; $i < $ad_blocks; ++$i) {
+            $ai = self::substr($ad, $i << 5, 32);
+            if (self::strlen($ai) < 32) {
+                $ai = str_pad($ai, 32, "\0", STR_PAD_RIGHT);
+            }
+            $state->absorb($ai);
+        }
+
+        $msg = '';
+        $cn = self::strlen($ct) & 31;
+        $ct_blocks = self::strlen($ct) >> 5;
+        for ($i = 0; $i < $ct_blocks; ++$i) {
+            $msg .= $state->dec(self::substr($ct, $i << 5, 32));
+        }
+        if ($cn) {
+            $start = $ct_blocks << 5;
+            $msg .= $state->decPartial(self::substr($ct, $start, $cn));
+        }
+        $expected_tag = $state->finalize(
+            self::strlen($ad) << 3,
+            self::strlen($msg) << 3
+        );
+        if (!self::hashEquals($expected_tag, $tag)) {
+            try {
+                // The RFC says to erase msg, so we shall try:
+                ParagonIE_Sodium_Compat::memzero($msg);
+            } catch (SodiumException $ex) {
+                // Do nothing if we cannot memzero
+            }
+            throw new SodiumException('verification failed');
+        }
+        return $msg;
+    }
+
+    /**
+     * @param string $msg
+     * @param string $ad
+     * @param string $key
+     * @param string $nonce
+     * @return array
+     *
+     * @throws SodiumException
+     */
+    public static function encrypt($msg, $ad, $key, $nonce)
+    {
+        $state = self::init($key, $nonce);
+        // ad_blocks = Split(ZeroPad(ad, 256), 256)
+        // for ai in ad_blocks:
+        //     Absorb(ai)
+        $ad_len = self::strlen($ad);
+        $msg_len = self::strlen($msg);
+        $ad_blocks = ($ad_len + 31) >> 5;
+        for ($i = 0; $i < $ad_blocks; ++$i) {
+            $ai = self::substr($ad, $i << 5, 32);
+            if (self::strlen($ai) < 32) {
+                $ai = str_pad($ai, 32, "\0", STR_PAD_RIGHT);
+            }
+            $state->absorb($ai);
+        }
+
+        // msg_blocks = Split(ZeroPad(msg, 256), 256)
+        // for xi in msg_blocks:
+        //     ct = ct || Enc(xi)
+        $ct = '';
+        $msg_blocks = ($msg_len + 31) >> 5;
+        for ($i = 0; $i < $msg_blocks; ++$i) {
+            $xi = self::substr($msg, $i << 5, 32);
+            if (self::strlen($xi) < 32) {
+                $xi = str_pad($xi, 32, "\0", STR_PAD_RIGHT);
+            }
+            $ct .= $state->enc($xi);
+        }
+        // tag = Finalize(|ad|, |msg|)
+        // ct = Truncate(ct, |msg|)
+        $tag = $state->finalize(
+            $ad_len << 3,
+            $msg_len << 3
+        );
+        // return ct and tag
+        return array(
+            self::substr($ct, 0, $msg_len),
+            $tag
+        );
+    }
+
+    /**
+     * @param string $key
+     * @param string $nonce
+     * @return ParagonIE_Sodium_Core_AEGIS_State128L
+     */
+    public static function init($key, $nonce)
+    {
+        return ParagonIE_Sodium_Core_AEGIS_State128L::init($key, $nonce);
+    }
+}