From 21474893efe0ab38461c3d08727c7c778caa9323 Mon Sep 17 00:00:00 2001
From: Dennis Brentjes <d.brentjes@gmail.com>
Date: Sun, 4 Feb 2018 12:47:09 +0100
Subject: Both algorithms are now batchable.

---
 client/cmixclient.cpp | 29 ++++++++++++++++++++++++-----
 client/cmixclient.hpp |  3 ++-
 client/main.cpp       |  5 ++++-
 3 files changed, 30 insertions(+), 7 deletions(-)

(limited to 'client')

diff --git a/client/cmixclient.cpp b/client/cmixclient.cpp
index fca653b..17f6e76 100644
--- a/client/cmixclient.cpp
+++ b/client/cmixclient.cpp
@@ -76,22 +76,41 @@ void CMixClient::handle_key_exchange(size_t node_id, cmix_proto::KeyExchange con
 	);
 	
 	if(std::all_of(shared_values.begin(), shared_values.end(), [](GroupElement const& value){return value != nullptr;})) {
-		size_t len = get_message_size(&cmix_ctx);
-		
+		size_t len = cmix_ctx.nr_mixes * get_message_size(&cmix_ctx);
 		std::vector<char> vec(len, '\0');
 		
 		char* id;
 		size_t id_len;
 		
 		get_pub_key_hash(&cmix_ctx, &id, &id_len);
-		std::string s = "abcdefghijklmnopqrstuvwxyz";
+		std::string s = "abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz"
+						"abcdefghijklmnopqrstuvwxyz";
 		
 		create_message(&cmix_ctx, vec.data(), id, id_len, s.data(), s.size());
 		
 		free(id);
 		
 		cmix_proto::UserMessage message;
-		message.mutable_m()->resize(get_group_element_array_size(&cmix_ctx));
+		message.mutable_m()->resize(get_group_element_array_size(&cmix_ctx) * cmix_ctx.nr_mixes);
 	
 		blind_message(&cmix_ctx, &(*message.mutable_m())[0], vec.data(), shared_values.data(), shared_values.size());
 		
@@ -145,7 +164,7 @@ void CMixClient::handle_message(size_t node_id, cmix_proto::CMixMessage message)
 CMixClient::CMixClient(NetworkDetails details)
 : io_service()
 , ssl_ctx(std::make_shared<boost::asio::ssl::context>(boost::asio::ssl::context::sslv23))
-, cmix_ctx(initialize_cmix_context(get_implementation()))
+, cmix_ctx(initialize_cmix_context(get_implementation(), details.nr_mixes))
 , network_details(details)
 , network_connections()
 , secret_values()
diff --git a/client/cmixclient.hpp b/client/cmixclient.hpp
index 6291bd1..d684c88 100644
--- a/client/cmixclient.hpp
+++ b/client/cmixclient.hpp
@@ -36,6 +36,7 @@ struct NodeDetails {
 struct NetworkDetails {
 	std::vector<NodeDetails> node_details; ///< Vector with all the node hosts and ports in network order.
 	std::string certdir; ///< The directory with trusted certificates.
+	unsigned int nr_mixes; ///< The number of simultaneous mixes the nodes are set to do.
 };
 
 /*!
@@ -78,4 +79,4 @@ public:
 	 * \brief run Runs the underlying io_service.
 	 */
 	void run();
-};
\ No newline at end of file
+};
diff --git a/client/main.cpp b/client/main.cpp
index 63d1ebf..efea166 100644
--- a/client/main.cpp
+++ b/client/main.cpp
@@ -33,6 +33,7 @@ int main(int argc, char* argv[]) {
 		("help,h", "produce help message.")
 		("network,n", po::value<std::vector<std::string>>()->multitoken(), "The addresses of the network nodes in order")
 		("certdir", po::value<std::string>(), "Directory containing trusted certificates.")
+		("nr_mixes,x", po::value<unsigned int>()->default_value(1), "The number of simultanous mixes the network will perform.")
 	;
 
 	po::variables_map vm;
@@ -69,8 +70,10 @@ int main(int argc, char* argv[]) {
 			return -1;
 		}
 	}
+
+	unsigned int nr_mixes = vm["nr_mixes"].as<unsigned int>();
 	
-	NetworkDetails details{node_details, certdir};
+	NetworkDetails details{node_details, certdir, nr_mixes};
 	
 	CMixClient cmix_client(details);
 	cmix_client.run();
-- 
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