/**
* Add a topic name and request its corresponding topic keys from the security server
* @param string topic_name
* @param string port_number port number of the node
*/
void Client::addTopic(bytestring topic_name, std::string port_number)
{
this->topics.push_back(topic_name);
this->topic_ports[topic_name] = port_number;
// create topic join request
Message request(this->id, topic_name, "topic_join");
// sign with private key
request.sign(this->key_pair.getPrivate());
this->log("sent topic join request for " + topic_name.str());
Message response = send(request, port_number);
// verify response with security server public key
if (!response.verify(this->sec_server_key)) {
this->log("could not verify:", response);
return;
}
// decrypt with private key
if (!response.decrypt(this->key_pair.getPrivate())) {
this->log("could not decrypt:", response);
return;
}
if (response.getData().size() == 0) {
this->log("received an empty topic join response for " + topic_name.str());
return;
}
this->log("received topic keys for " + topic_name.str());
// store the topic keypair
TopicKeyPair topic_key_pair(response.getData());
this->topic_keys[topic_name] = topic_key_pair;
}
/**
* Add a topic name and request its corresponding topic keys from the security server
* @param string topic_name
* @param string port_number port number of the node
*/
void CardClient::addTopic(bytestring topic_name, std::string port_number)
{
this->topics.push_back(topic_name);
this->topic_ports[topic_name] = port_number;
// create topic join request
Message request(this->id, topic_name, "topic_join");
request.sign(this->card);
this->log("sent topic join request for (signed on card) " + topic_name.str());
Message response = send(request, port_number);
if (!response.handleTopicKeyResponse(card)) {
this->log("could not store topic keys for " + topic_name.str());
return;
}
this->log("received topic keys for " + topic_name.str());
}
