Add parameter types to CryptoUtil

diff --git a/wcfsetup/install/files/lib/util/CryptoUtil.class.php b/wcfsetup/install/files/lib/util/CryptoUtil.class.php
index 2c82d1f375ea2958c17cdcae6cfe28b455d79326..fd07dca61867b786f3ba82257a785ea5d206108e 100644 (file)
--- a/wcfsetup/install/files/lib/util/CryptoUtil.class.php
+++ b/wcfsetup/install/files/lib/util/CryptoUtil.class.php
@@ -21,10 +21,9 @@ final class CryptoUtil
     /**
      * Signs the given value with the signature secret.
      *
-     * @param string $value
      * @throws  CryptoException
      */
-    public static function getSignature($value): string
+    public static function getSignature(string $value): string
     {
         if (\mb_strlen(SIGNATURE_SECRET, '8bit') < 15) {
             throw new CryptoException('SIGNATURE_SECRET is too short, aborting.');
@@ -35,10 +34,8 @@ final class CryptoUtil
 
     /**
      * Creates a signed (signature + encoded value) string.
-     *
-     * @param string $value
      */
-    public static function createSignedString($value): string
+    public static function createSignedString(string $value): string
     {
         return self::getSignature($value) . '-' . Base64::encode($value);
     }
@@ -46,10 +43,8 @@ final class CryptoUtil
     /**
      * Returns whether the given string is a proper signed string.
      * (i.e. consists of a valid signature + encoded value)
-     *
-     * @param string $string
      */
-    public static function validateSignedString($string): bool
+    public static function validateSignedString(string $string): bool
     {
         $parts = \explode('-', $string, 2);
         if (\count($parts) !== 2) {
@@ -72,10 +67,9 @@ final class CryptoUtil
      *
      * - Returns null if the string is not properly signed.
      *
-     * @param string $string
      * @see     \wcf\util\CryptoUtil::validateSignedString()
      */
-    public static function getValueFromSignedString($string): ?string
+    public static function getValueFromSignedString(string $string): ?string
     {
         if (!self::validateSignedString($string)) {
             return null;