golden hour

/var/www/html/wp-includes/sodium_compat/src/Core32

File/Folder	Size	Actions
BLAKE2b.php	21.8 KB
ChaCha20	-
ChaCha20.php	14.17 KB
Curve25519	-
Curve25519.php	131.6 KB
Ed25519.php	15.25 KB
HChaCha20.php	5.17 KB
HSalsa20.php	6.78 KB
Int32.php	23.97 KB
Int64.php	30.43 KB
Poly1305	-
Poly1305.php	1.55 KB
Salsa20.php	11.24 KB
SecretStream	-
SipHash.php	6.46 KB
Util.php	209 B
X25519.php	10.78 KB
XChaCha20.php	1.73 KB
XSalsa20.php	1.35 KB

Edit: XSalsa20.php

<?php

if (class_exists('ParagonIE_Sodium_Core32_XSalsa20', false)) {
    return;
}

/**
 * Class ParagonIE_Sodium_Core32_XSalsa20
 */
abstract class ParagonIE_Sodium_Core32_XSalsa20 extends ParagonIE_Sodium_Core32_HSalsa20
{
    /**
     * Expand a key and nonce into an xsalsa20 keystream.
     *
     * @internal You should not use this directly from another application
     *
     * @param int $len
     * @param string $nonce
     * @param string $key
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    public static function xsalsa20($len, $nonce, $key)
    {
        $ret = self::salsa20(
            $len,
            self::substr($nonce, 16, 8),
            self::hsalsa20($nonce, $key)
        );
        return $ret;
    }

/**
     * Encrypt a string with XSalsa20. Doesn't provide integrity.
     *
     * @internal You should not use this directly from another application
     *
     * @param string $message
     * @param string $nonce
     * @param string $key
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    public static function xsalsa20_xor($message, $nonce, $key)
    {
        return self::xorStrings(
            $message,
            self::xsalsa20(
                self::strlen($message),
                $nonce,
                $key
            )
        );
    }
}