From 46f22621759d388f7cef4bf0d2ac03667a5d611e Mon Sep 17 00:00:00 2001
From: Dennis Brentjes <d.brentjes@gmail.com>
Date: Mon, 7 Nov 2016 12:53:59 +0100
Subject: prepares the api for sending and mixing messages in the realtime
 phase.

---
 client/cmixclient.cpp | 52 ++++++++++++++++++++++++---------------------------
 client/cmixclient.hpp |  9 ++++-----
 2 files changed, 28 insertions(+), 33 deletions(-)

(limited to 'client')

diff --git a/client/cmixclient.cpp b/client/cmixclient.cpp
index ba1a187..ba2f1da 100644
--- a/client/cmixclient.cpp
+++ b/client/cmixclient.cpp
@@ -17,25 +17,12 @@ using namespace boost::asio;
 
 void CMixClient::key_exchange(size_t node_id) {
 	BOOST_LOG_TRIVIAL(trace) << "Sending KeyExchange for node: " << node_id;
-		
-	unsigned char* buffer;
-	size_t len;
-	
-	api.element_to_array(&buffer, &len, keypair.pub);
 	
 	cmix_proto::KeyExchange ke;
-	ke.set_public_key(buffer, len);
-	api.free_buffer(buffer);
-	
-	data.at(node_id).secret_value = api.get_group_element(true);
-	
-	GroupElement shared_value = api.get_key_exchange_value(data.at(node_id).secret_value);
+	ke.mutable_public_key()->resize(get_group_element_array_size(&cmix_ctx));
+	ke.mutable_value()->resize(get_group_element_array_size(&cmix_ctx));
 	
-	api.element_to_array(&buffer, &len, shared_value);
-	ke.set_value(buffer, len);
-	api.free_buffer(buffer);
-	
-	api.free_group_element(shared_value);
+	key_exchange_init(&cmix_ctx, &(*ke.mutable_public_key())[0], &(*ke.mutable_value())[0], &data.at(node_id).secret_value);
 	
 	network_connections.at(node_id).async_send(ke);
 	network_connections.at(node_id).async_receive([node_id, this](cmix_proto::CMixMessage message) {
@@ -59,14 +46,26 @@ void CMixClient::initialize_connections() {
 			});
 		};
 	
-		network_connections.emplace_back(std::unique_ptr<ssl::stream<tcp::socket>>(new ssl::stream<tcp::socket>(io_service, *ctx)));
+		network_connections.emplace_back(std::unique_ptr<ssl::stream<tcp::socket>>(new ssl::stream<tcp::socket>(io_service, *ssl_ctx)));
 		network_connections.back().async_connect(network_details.node_details[i].host, network_details.node_details[i].port, handler);
 	}
 }
 
 void CMixClient::handle_key_exchange(size_t node_id, cmix_proto::KeyExchange const& ke)
 {
-	data.at(node_id).shared_value.shared = api.derive_shared_key(keypair, reinterpret_cast<uint8_t const*>(ke.public_key().c_str()), ke.public_key().size(), reinterpret_cast<uint8_t const*>(ke.value().c_str()), ke.value().size(), data.at(node_id).secret_value, false);
+	key_exchange_initiator(
+		&cmix_ctx,
+		&data.at(node_id).shared_value,
+		ke.public_key().data(),
+		ke.value().data(),
+		data.at(node_id).secret_value
+	);
+	
+	size_t len = get_group_element_array_size(&cmix_ctx);
+	std::string s = "abcdefghijklmnopqrstuvwxyz";
+	s.resize(len, '0');
+	
+	
 	
 	cmix_proto::Bye bye;
 	network_connections.at(node_id).async_send(bye);
@@ -104,14 +103,16 @@ void CMixClient::handle_message(size_t node_id, cmix_proto::CMixMessage message)
 
 CMixClient::CMixClient(NetworkDetails details)
 : io_service()
-, ctx(std::make_shared<boost::asio::ssl::context>(boost::asio::ssl::context::sslv23))
+, ssl_ctx(std::make_shared<boost::asio::ssl::context>(boost::asio::ssl::context::sslv23))
+, cmix_ctx(initialize_cmix_context(get_implementation()))
 , network_details(details)
 , network_connections()
-, api(get_implementation())
-, keypair(api.create_keypair())
+, data()
 {
+	initialize_keypair(&cmix_ctx);
+	
 	if(!details.certdir.empty()) {
-		ctx->add_verify_path(details.certdir);
+		ssl_ctx->add_verify_path(details.certdir);
 	}
 
 	initialize_connections();
@@ -119,12 +120,7 @@ CMixClient::CMixClient(NetworkDetails details)
 
 CMixClient::~CMixClient()
 {
-	api.free_keypair(&keypair);
-	for(auto&& d : data) {
-		api.free_shared_key(&d.shared_value);
-		api.free_group_element(d.secret_value);
-	}
-	api.deinitialize();
+	deinitialize(&cmix_ctx);
 }
 
 void CMixClient::run() {
diff --git a/client/cmixclient.hpp b/client/cmixclient.hpp
index ee99d38..59aeba6 100644
--- a/client/cmixclient.hpp
+++ b/client/cmixclient.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "senderreceiver.hpp"
+#include "cmix.h"
 #include "api.h"
 #include "groupelement.h"
 #include "keypair.h"
@@ -44,19 +45,17 @@ class CMixClient {
 
 	struct NodeData {
 		GroupElement secret_value;
-		SharedKey shared_value;
+		GroupElement shared_value;
 	};
 
 	boost::asio::io_service io_service;
-	std::shared_ptr<boost::asio::ssl::context> ctx;
+	std::shared_ptr<boost::asio::ssl::context> ssl_ctx;
 
+	CMixContext cmix_ctx;
 	NetworkDetails network_details;
 	std::vector<SSLSenderReceiver> network_connections;
 	std::vector<NodeData> data;
 
-	Api api;
-	KeyPair keypair;
-
 	void key_exchange(size_t node_id);
 
 	void initialize_connections();
-- 
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