1 files changed, 46 insertions, 0 deletions
diff --git a/src/shared/Auth/Hmac.h b/src/shared/Auth/Hmac.h
new file mode 100644
index 00000000000..083c84fe871
--- /dev/null
+++ b/src/shared/Auth/Hmac.h
@@ -0,0 +1,46 @@
+/* 
+ * Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _AUTH_HMAC_H
+#define _AUTH_HMAC_H
+
+#include "Common.h"
+#include <openssl/hmac.h>
+#include <openssl/sha.h>
+
+class BigNumber;
+
+#define SEED_KEY_SIZE 16
+
+class HmacHash
+{
+    public:
+        HmacHash();
+        ~HmacHash();
+        void UpdateBigNumber(BigNumber *bn);
+        void UpdateData(const uint8 *data, int length);
+        void Initialize();
+        void Finalize();
+        uint8 *GetDigest() { return m_digest; };
+        int GetLength() { return SHA_DIGEST_LENGTH; };
+    private:
+        HMAC_CTX m_ctx;
+        uint8 m_key[SEED_KEY_SIZE];
+        uint8 m_digest[SHA_DIGEST_LENGTH];
+};
+#endif