1 files changed, 52 insertions, 0 deletions
diff --git a/src/shared/Auth/SARC4.cpp b/src/shared/Auth/SARC4.cpp
new file mode 100644
index 00000000000..f59bb7f0c53
--- /dev/null
+++ b/src/shared/Auth/SARC4.cpp
@@ -0,0 +1,52 @@
+/*
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "Auth/SARC4.h"
+#include <openssl/sha.h>
+
+SARC4::SARC4()
+{
+    EVP_CIPHER_CTX_init(&m_ctx);
+    EVP_EncryptInit_ex(&m_ctx, EVP_rc4(), NULL, NULL, NULL);
+    EVP_CIPHER_CTX_set_key_length(&m_ctx, SHA_DIGEST_LENGTH);
+}
+
+SARC4::SARC4(uint8 *seed)
+{
+    EVP_CIPHER_CTX_init(&m_ctx);
+    EVP_EncryptInit_ex(&m_ctx, EVP_rc4(), NULL, NULL, NULL);
+    EVP_CIPHER_CTX_set_key_length(&m_ctx, SHA_DIGEST_LENGTH);
+    EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL);
+}
+
+SARC4::~SARC4()
+{
+    EVP_CIPHER_CTX_cleanup(&m_ctx);
+}
+
+void SARC4::Init(uint8 *seed)
+{
+    EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL);
+}
+
+void SARC4::UpdateData(int len, uint8 *data)
+{
+    int outlen = 0;
+    EVP_EncryptUpdate(&m_ctx, data, &outlen, data, len);
+    EVP_EncryptFinal_ex(&m_ctx, data, &outlen);
+}