feat(Core/Authserver): TOTP rewrite (#5620)

src/common/Cryptography/AES.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016+  AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
+ * Copyright (C) 2021+  WarheadCore <https://github.com/WarheadCore>
+ */
+
+#ifndef Warhead_AES_h__
+#define Warhead_AES_h__
+
+#include "Define.h"
+#include <array>
+#include <openssl/evp.h>
+
+namespace acore::Crypto
+{
+    class AC_COMMON_API AES
+    {
+    public:
+        static constexpr size_t IV_SIZE_BYTES = 12;
+        static constexpr size_t KEY_SIZE_BYTES = 16;
+        static constexpr size_t TAG_SIZE_BYTES = 12;
+
+        using IV = std::array<uint8, IV_SIZE_BYTES>;
+        using Key = std::array<uint8, KEY_SIZE_BYTES>;
+        using Tag = uint8[TAG_SIZE_BYTES];
+
+        AES(bool encrypting);
+        ~AES();
+
+        void Init(Key const& key);
+
+        bool Process(IV const& iv, uint8* data, size_t length, Tag& tag);
+
+    private:
+        EVP_CIPHER_CTX* _ctx;
+        bool _encrypting;
+    };
+}
+
+#endif // Warhead_AES_h__