From ad0cd81faf06c83b4e723b3d621e051756460bdd Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@anytun.org>
Date: Sun, 24 Feb 2008 00:58:19 +0000
Subject: changed cipher option default value to aes-ctr added option for key
 derivation, default is aes-ctr

---
 cipherFactory.cpp |  2 +-
 keyDerivation.h   | 12 +++++++++++-
 options.cpp       | 17 ++++++++++++++++-
 options.h         |  3 +++
 4 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/cipherFactory.cpp b/cipherFactory.cpp
index 4271600..5d7de85 100644
--- a/cipherFactory.cpp
+++ b/cipherFactory.cpp
@@ -39,7 +39,7 @@ Cipher* CipherFactory::create(std::string const& type)
 {
   if( type == "null" )
     return new NullCipher();
-  else if( type == "aes" )
+  else if( type == "aes-ctr" )
     return new AesIcmCipher();
   else
     throw std::invalid_argument("cipher not available");
diff --git a/keyDerivation.h b/keyDerivation.h
index f660efa..6f52099 100644
--- a/keyDerivation.h
+++ b/keyDerivation.h
@@ -51,7 +51,7 @@ typedef enum {
 class KeyDerivation
 {
 public:
-  KeyDerivation() : ld_kdr_(0), master_salt_(0), cipher_(NULL) {};
+  KeyDerivation() : ld_kdr_(0), master_salt_(0), master_key_(0), cipher_(NULL) {};
   virtual ~KeyDerivation();
 
   void init(Buffer key, Buffer salt);
@@ -83,5 +83,15 @@ protected:
 };
 
 
+class NullKeyDerivation
+{
+
+};
+
+class AesIcmKeyDerivation
+{
+  
+};
+
 #endif
 
diff --git a/options.cpp b/options.cpp
index 4803cd2..461e4f6 100644
--- a/options.cpp
+++ b/options.cpp
@@ -103,7 +103,8 @@ Options::Options()
   ifconfig_param_local_ = "192.168.200.1";
   ifconfig_param_remote_netmask_ = "255.255.255.0";
   seq_window_size_ = 100;
-  cipher_ = "aes";
+  cipher_ = "aes-ctr";
+  kd_prf_ = "aes-ctr";
   auth_algo_ = "sha1";
 }
 
@@ -134,6 +135,7 @@ bool Options::parse(int argc, char* argv[])
     PARSE_SCALAR_PARAM2("-n","--ifconfig", ifconfig_param_local_, ifconfig_param_remote_netmask_)
     PARSE_SCALAR_PARAM("-w","--window-size", seq_window_size_)
     PARSE_SCALAR_PARAM("-c","--cipher", cipher_)
+    PARSE_SCALAR_PARAM("-k","--kd-prf", kd_prf_)
     PARSE_SCALAR_PARAM("-a","--auth-algo", auth_algo_)
 		PARSE_SCALAR_CSLIST("-M","--sync-hosts", host_port_queue)
     else 
@@ -405,6 +407,19 @@ Options& Options::setCipher(std::string c)
   return *this;
 }
 
+std::string Options::getKdPrf()
+{
+  Lock lock(mutex);
+  return kd_prf_;
+}
+
+Options& Options::setKdPrf(std::string k)
+{
+  Lock lock(mutex);
+  kd_prf_ = k;
+  return *this;
+}
+
 std::string Options::getAuthAlgo()
 {
   Lock lock(mutex);
diff --git a/options.h b/options.h
index 1c302c8..e0c1ac3 100644
--- a/options.h
+++ b/options.h
@@ -84,6 +84,8 @@ public:
   Options& setSeqWindowSize(window_size_t s);
   std::string getCipher();
   Options& setCipher(std::string c);
+  std::string getKdPrf();
+  Options& setKdPrf(std::string k);
   std::string getAuthAlgo();
   Options& setAuthAlgo(std::string a);
 	ConnectToList getConnectTo();
@@ -108,6 +110,7 @@ private:
   std::string ifconfig_param_remote_netmask_;
   window_size_t seq_window_size_;
   std::string cipher_;
+  std::string kd_prf_;
   std::string auth_algo_;
 };
 
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