Add the new keys (3.2 Support) (Grasscutters#1923)

* Add the new keys

* Some improvements to the key loading system & Bump the game version

src/main/java/emu/grasscutter/GameConstants.java

@@ -6,7 +6,7 @@
 import emu.grasscutter.utils.Utils;
 
 public final class GameConstants {
-    public static String VERSION = "3.1.0";
+    public static String VERSION = "3.2.0";
 
     public static final int DEFAULT_TEAMS = 4;
     public static final int MAX_TEAMS = 10;

src/main/java/emu/grasscutter/utils/Crypto.java

@@ -1,5 +1,7 @@
 package emu.grasscutter.utils;
 
+import java.io.File;
+import java.nio.file.Path;
 import java.security.KeyFactory;
 import java.security.PrivateKey;
 import java.security.PublicKey;
@@ -8,6 +10,7 @@
 import java.security.spec.X509EncodedKeySpec;
 import java.util.Map;
 import java.util.HashMap;
+import java.util.regex.Pattern;
 
 import emu.grasscutter.Grasscutter;
 
@@ -36,14 +39,21 @@ public static void loadKeys() {
             CUR_SIGNING_KEY = KeyFactory.getInstance("RSA")
                 .generatePrivate(new PKCS8EncodedKeySpec(FileUtils.readResource("/keys/SigningKey.der")));
 
-            var CNRelSign = KeyFactory.getInstance("RSA")
-                .generatePublic(new X509EncodedKeySpec(FileUtils.readResource("/keys/CNRel_Pub.der")));
+            Pattern pattern = Pattern.compile("([0-9]*)_Pub\\.der");
+            for (Path path : FileUtils.getPathsFromResource("/keys/game_keys")) {
+                if (path.toString().endsWith("_Pub.der")) {
 
-            var OSRelSign = KeyFactory.getInstance("RSA")
-                .generatePublic(new X509EncodedKeySpec(FileUtils.readResource("/keys/OSRel_Pub.der")));
+                    var m = pattern.matcher(path.getFileName().toString());
 
-            EncryptionKeys.put(2, CNRelSign);
-            EncryptionKeys.put(3, OSRelSign);
+                    if (m.matches())
+                    {
+                        var key = KeyFactory.getInstance("RSA")
+                            .generatePublic(new X509EncodedKeySpec(FileUtils.read(path)));
+
+                        EncryptionKeys.put(Integer.valueOf(m.group(1)), key);
+                    }
+                }
+            }
         }
         catch (Exception e) {
             Grasscutter.getLogger().error("An error occurred while loading keys.", e);

src/main/resources/keys/game_keys/4.pem

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEAyaxqjPJP5+Innfv5IdfQqY/ftS++lnDRe3EczNkIjESWXhHS
+OljEw9b9C+/BtF+fO9QZL7Z742y06eIdvsMPQKdGflB26+9OZ8AF4SpXDn3aVWGr
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+Ymo0aZKARLHW82GbomQ0zxdRoo9vaqfGNpXkxyyt3k3GGDunmrskYw==
+-----END RSA PRIVATE KEY-----

src/main/resources/keys/game_keys/5.pem

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEAsJbFp3WcsiojjdQtVnTuvtawL2m4XxK93F6lCnFwcZqUP39t
+xFGGlrogHMqreyawIUN7E5shtwGzigzjW8Ly5CryBJpXP3ehNTqJS7emb+9LlC19
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+bVOcX13gT26SYngAHHeh7xjWJr/KgIIwvcvgvoVs6lu7a8aLUvrOag==
+-----END RSA PRIVATE KEY-----