Init enter game

Common/Util/Crpyto/DispatchEncryption.cs

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+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Json;
+
+namespace KianaBH.Util.Crypto;
+
+public static class DispatchEncryption
+{
+    private static readonly JsonSerializerOptions JsonSerializerOptions = new()
+    {
+        PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower
+    };
+
+    public static string? EncryptDispatchContent(string version, object? data)
+    {
+        if (!ConfigManager.Hotfix.AesKeys.TryGetValue(version, out var aesKey))
+            return null;
+
+        var serializedData = JsonSerializer.Serialize(data, JsonSerializerOptions);
+        var keyBytes = aesKey.Split(' ')
+            .Select(b => Convert.ToByte(b, 16))
+            .ToArray();
+
+        using var aes = Aes.Create();
+        aes.Mode = CipherMode.ECB;
+        aes.Padding = PaddingMode.PKCS7;
+        aes.Key = keyBytes;
+
+        var encryptor = aes.CreateEncryptor();
+        var dataBytes = Encoding.UTF8.GetBytes(serializedData);
+        var encryptedBytes = encryptor.TransformFinalBlock(dataBytes, 0, dataBytes.Length);
+
+        return Convert.ToBase64String(encryptedBytes);
+    }
+}