1 files changed, 48 insertions, 0 deletions
diff --git a/src/server/shared/Cryptography/HmacHash.h b/src/server/shared/Cryptography/HmacHash.h
new file mode 100644
index 00000000000..cf59e16f08e
--- /dev/null
+++ b/src/server/shared/Cryptography/HmacHash.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>
+ * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _AUTH_HMAC_H
+#define _AUTH_HMAC_H
+
+#include "Define.h"
+#include <string>
+#include <openssl/hmac.h>
+#include <openssl/sha.h>
+
+class BigNumber;
+
+#define SEED_KEY_SIZE 16
+
+class HmacHash
+{
+    public:
+        HmacHash(uint32 len, uint8 *seed, EVP_MD const* hasher, uint32 digestLength);
+        ~HmacHash();
+        void UpdateData(const std::string &str);
+        void UpdateData(const uint8* data, size_t len);
+        void Finalize();
+        uint8* ComputeHash(BigNumber* bn);
+        uint8* GetDigest() { return _digest; }
+        int GetLength() const { return SHA_DIGEST_LENGTH; }
+    private:
+        HMAC_CTX _ctx;
+        uint8* _digest;
+        uint32 _digestLength;
+};
+
+#endif