Removed openssl dependancy for MD5 digests.

lib/auth.h

@@ -2,14 +2,7 @@
 #include <string>
 
 namespace Secure {
-  class Auth {
-    private:
-      void * pubkey; ///< Holds the public key.
-    public:
-      Auth(); ///< Attempts to load the GBv2 public key.
-      bool PubKey_Check(std::string & data, std::string basesign); ///< Attempts to verify RSA signature using the public key.
-  };
-
-  std::string md5(std::string input); ///< Wrapper function for openssl MD5 implementation
-
+  std::string md5(std::string input);
+  std::string md5(const char * input, const unsigned int in_len);
 }
+