feat: add dbdcrypt

2026-04-12 20:56:25 -03:00
parent b2dfd9e1e5
commit 3b461cd845
2 changed files with 418 additions and 0 deletions
@@ -0,0 +1,49 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+// 9.5.2_live
+#define ACCESS_KEY "BGz7nwlRX8QP__fzvqrgpNRVqrlEyuY54vuGVAqDO_g="
+#define KEY_ID "9.5.2_live"
+
+/*
+    hardcoded variables (they have been the same since like 2017)
+*/
+#define CDN_KEY_BASE64 "lEQWeCt51ET+MIuxdTs7Ig/gzVZP2vdkVZA1BDfz+L0="
+#define CDN_UUID "6EF35759-454D-4EBC-8041-9A94CB99FD5D"
+
+class DBDCrypt
+{
+    public:
+        enum PayloadType
+        {
+            NONE = 0,
+            TYPE_1, // compressed
+            TYPE_2, // CDN
+            TYPE_3  // dyn / accesskey
+        };
+
+        static std::string decrypt(const std::string& data, const std::string& accessKey,
+                                   PayloadType* outType = nullptr);
+
+        static std::string encrypt(const std::string& data, const std::string& accessKey, PayloadType type,
+                                   std::string keyId);
+
+    private:
+        static std::string decType1(const std::string& data, const std::string& key, PayloadType* outType);
+        static std::string decType2(const std::string& data, const std::string& key, PayloadType* outType);
+        static std::string decType3(const std::string& data, const std::string& key, PayloadType* outType);
+
+        static std::string aesECBDecrypt(const std::vector<uint8_t>& cipherText, const std::vector<uint8_t>& key);
+        static std::string aesECBEncrypt(const std::vector<uint8_t>& plainText, const std::vector<uint8_t>& key);
+
+        static std::vector<uint8_t> b64Dec(const std::string& input);
+        static std::string b64Enc(const std::vector<uint8_t>& input);
+
+        static std::string zlibDecompress(const std::vector<uint8_t>& compressed);
+        static std::vector<uint8_t> zLibCompress(const std::string& data);
+
+        static std::vector<uint8_t> transformCDNKey(const std::string& b64CDNKey);
+        static std::string shiftKeyID(const std::string& id, int shift);
+};