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- #include <iostream>
- #include <fstream>
- #include <sstream>
- #include <cstring>
- #include <cstdio>
- #include <unistd.h>
- #include "networkServer.hpp"
- void obtain_update_locks(
- std::unique_lock<std::mutex> &lck,
- const std::vector<std::string>& serverIPs,
- const std::vector<int>& serverPorts,
- const std::string& selfIP,
- int selfPort,
- struct synchronization_tool *sync)
- {
- size_t i = 0;
- while (i < serverIPs.size())
- {
- if (serverIPs[i] == selfIP && serverPorts[i] == selfPort)
- {
- lck.lock();
- i++;
- continue;
- }
- struct mg_connection *conn =
- mg_connect_websocket_client(
- serverIPs[i].c_str(),
- serverPorts[i],
- USE_SSL,
- NULL,
- 0,
- UPDATE_LOCK_URI,
- "null",
- synchro_websocket_data_handler,
- synchro_websocket_close_handler,
- (void *) sync);
- if (!conn)
- {
- std::cerr << "Couldn't get server " << i << "'s lock" << std::endl;
- continue;
- }
- std::unique_lock<std::mutex> lck(sync->mtx);
- sync->val = 0;
- sync->val2 = 0;
- mg_websocket_client_write(
- conn,
- MG_WEBSOCKET_OPCODE_DATACOMPLETE,
- "",
- 0);
- while (!sync->val2)
- sync->cv.wait(lck);
- mg_close_connection(conn);
- if (sync->val)
- i++;
- }
- }
- void release_update_locks(
- std::unique_lock<std::mutex> &lck,
- const std::vector<std::string>& serverIPs,
- const std::vector<int>& serverPorts,
- const std::string& selfIP,
- int selfPort,
- struct synchronization_tool *sync)
- {
- ssize_t i = serverIPs.size() - 1;
- while (i >= 0)
- {
- if (serverIPs[i] == selfIP && serverPorts[i] == selfPort)
- {
- lck.unlock();
- i--;
- continue;
- }
- struct mg_connection *conn =
- mg_connect_websocket_client(
- serverIPs[i].c_str(),
- serverPorts[i],
- USE_SSL,
- NULL,
- 0,
- UPDATE_UNLOCK_URI,
- "null",
- synchro_websocket_data_handler,
- synchro_websocket_close_handler,
- (void *) sync);
- if (!conn)
- {
- std::cerr << "Couldn't get server " << i << "'s lock" << std::endl;
- continue;
- }
- std::unique_lock<std::mutex> lck(sync->mtx);
- sync->val = 0;
- sync->val2 = 0;
- mg_websocket_client_write(
- conn,
- MG_WEBSOCKET_OPCODE_DATACOMPLETE,
- "",
- 0);
- while (!sync->val2)
- sync->cv.wait(lck);
- mg_close_connection(conn);
- if (sync->val)
- i--;
- }
- }
- std::string make_epoch_initiator_string(
- const std::vector<Proof>& generatorProof,
- const Twistpoint& nextGenerator)
- {
- std::stringstream buffer;
-
- BinarySizeT sizeOfVector(generatorProof.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << generatorProof[i];
-
- buffer << nextGenerator;
- return buffer.str();
- }
- void read_epoch_initiator_string(
- const char *filename,
- std::vector<Proof>& generatorProof,
- Twistpoint& nextGenerator)
- {
- std::ifstream file(filename);
- BinarySizeT sizeOfVector;
- generatorProof.clear();
- file >> sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- Proof currProof;
- file >> currProof;
- generatorProof.push_back(currProof);
- }
-
- file >> nextGenerator;
- }
- std::string make_epoch_update_string(
- const std::vector<std::vector<Proof>>& pi,
- const std::vector<std::vector<Twistpoint>>& permutationCommits,
- const std::vector<std::vector<Twistpoint>>& freshPseudonymCommits,
- const std::vector<std::vector<Twistpoint>>& freshPseudonymSeedCommits,
- const std::vector<std::vector<CurveBipoint>>& serverTallyCommits,
- const std::vector<std::vector<std::vector<TwistBipoint>>>& partwayVoteMatrixCommits,
- const std::vector<std::vector<std::vector<TwistBipoint>>>& finalVoteMatrixCommits,
- const std::vector<std::vector<Twistpoint>>& userTallyMaskCommits,
- const std::vector<std::vector<Twistpoint>>& userTallyMessageCommits,
- const std::vector<std::vector<Twistpoint>>& userTallySeedCommits,
- const Twistpoint& nextGenerator,
- bool doUserTallies)
- {
- std::stringstream buffer;
-
- BinarySizeT sizeOfVectorI, sizeOfVectorJ;
- sizeOfVectorI.set(pi.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- sizeOfVectorJ.set(pi[i].size());
- buffer << sizeOfVectorJ;
- for (size_t j = 0; j < sizeOfVectorJ.val(); j++)
- buffer << pi[i][j];
- }
- sizeOfVectorI.set(permutationCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- buffer << permutationCommits[i][j];
- sizeOfVectorI.set(freshPseudonymCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- buffer << freshPseudonymCommits[i][j];
- sizeOfVectorI.set(freshPseudonymSeedCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- buffer << freshPseudonymSeedCommits[i][j];
- sizeOfVectorI.set(serverTallyCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- buffer << serverTallyCommits[i][j];
- sizeOfVectorI.set(partwayVoteMatrixCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- for (size_t k = 0; k < sizeOfVectorI.val(); k++)
- buffer << partwayVoteMatrixCommits[i][j][k];
- sizeOfVectorI.set(finalVoteMatrixCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- for (size_t k = 0; k < sizeOfVectorI.val(); k++)
- buffer << finalVoteMatrixCommits[i][j][k];
- sizeOfVectorI.set(userTallyMaskCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- buffer << userTallyMaskCommits[i][j];
- sizeOfVectorI.set(userTallyMessageCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- buffer << userTallyMessageCommits[i][j];
- sizeOfVectorI.set(userTallySeedCommits.size());
- buffer << sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- buffer << userTallySeedCommits[i][j];
- buffer << nextGenerator;
- BinaryBool flag(doUserTallies);
- buffer << flag;
- return buffer.str();
- }
- bool read_epoch_update_string(
- const char *filename,
- std::vector<std::vector<Proof>>& pi,
- std::vector<std::vector<Twistpoint>>& permutationCommits,
- std::vector<std::vector<Twistpoint>>& freshPseudonymCommits,
- std::vector<std::vector<Twistpoint>>& freshPseudonymSeedCommits,
- std::vector<std::vector<CurveBipoint>>& serverTallyCommits,
- std::vector<std::vector<std::vector<TwistBipoint>>>& partwayVoteMatrixCommits,
- std::vector<std::vector<std::vector<TwistBipoint>>>& finalVoteMatrixCommits,
- std::vector<std::vector<Twistpoint>>& userTallyMaskCommits,
- std::vector<std::vector<Twistpoint>>& userTallyMessageCommits,
- std::vector<std::vector<Twistpoint>>& userTallySeedCommits,
- Twistpoint& nextGenerator)
- {
- std::ifstream file(filename);
- BinarySizeT sizeOfVectorI, sizeOfVectorJ;
-
- pi.clear();
- permutationCommits.clear();
- freshPseudonymCommits.clear();
- freshPseudonymSeedCommits.clear();
- serverTallyCommits.clear();
- partwayVoteMatrixCommits.clear();
- finalVoteMatrixCommits.clear();
- userTallyMaskCommits.clear();
- userTallyMessageCommits.clear();
- userTallySeedCommits.clear();
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<Proof> currRow;
- file >> sizeOfVectorJ;
- for (size_t j = 0; j < sizeOfVectorJ.val(); j++)
- {
- Proof currProof;
- file >> currProof;
- currRow.push_back(currProof);
- }
- pi.push_back(currRow);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<Twistpoint> currRow;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- Twistpoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- permutationCommits.push_back(currRow);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<Twistpoint> currRow;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- Twistpoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- freshPseudonymCommits.push_back(currRow);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<Twistpoint> currRow;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- Twistpoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- freshPseudonymSeedCommits.push_back(currRow);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<CurveBipoint> currRow;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- CurveBipoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- serverTallyCommits.push_back(currRow);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<std::vector<TwistBipoint>> currMatrix;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- std::vector<TwistBipoint> currRow;
- for (size_t k = 0; k < sizeOfVectorI.val(); k++)
- {
- TwistBipoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- currMatrix.push_back(currRow);
- }
- partwayVoteMatrixCommits.push_back(currMatrix);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<std::vector<TwistBipoint>> currMatrix;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- std::vector<TwistBipoint> currRow;
- for (size_t k = 0; k < sizeOfVectorI.val(); k++)
- {
- TwistBipoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- currMatrix.push_back(currRow);
- }
- finalVoteMatrixCommits.push_back(currMatrix);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<Twistpoint> currRow;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- Twistpoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- userTallyMaskCommits.push_back(currRow);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<Twistpoint> currRow;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- Twistpoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- userTallyMessageCommits.push_back(currRow);
- }
- file >> sizeOfVectorI;
- for (size_t i = 0; i < sizeOfVectorI.val(); i++)
- {
- std::vector<Twistpoint> currRow;
- for (size_t j = 0; j < sizeOfVectorI.val(); j++)
- {
- Twistpoint currCommit;
- file >> currCommit;
- currRow.push_back(currCommit);
- }
- userTallySeedCommits.push_back(currRow);
- }
- file >> nextGenerator;
-
- BinaryBool doUserTallies;
- file >> doUserTallies;
- return doUserTallies.val();
- }
- struct mg_connection *distribute_epoch_updates(
- const std::string& recipient,
- int recipientPort,
- const std::string& data,
- const struct synchronization_tool* sync)
- {
- struct mg_connection *conn = NULL;
- while (!conn)
- {
- conn = mg_connect_websocket_client(
- recipient.c_str(),
- recipientPort,
- USE_SSL,
- NULL,
- 0,
- ACCEPT_EPOCH_UPDATES_URI,
- "null",
- synchro_websocket_data_handler,
- synchro_websocket_close_handler,
- (void *) sync);
- if (!conn)
- std::cerr << "Trouble giving epoch updates to server at " << recipient << std::endl;
- }
- mg_websocket_client_write(
- conn,
- MG_WEBSOCKET_OPCODE_BINARY,
- data.c_str(),
- data.length());
- mg_websocket_client_write(
- conn,
- MG_WEBSOCKET_OPCODE_DATACOMPLETE,
- "",
- 0);
- return conn;
- }
- /*
- * CONSTRUCTORS
- */
- PrsonaServerWebSocketHandler::PrsonaServerWebSocketHandler(
- PrsonaServer *prsonaServer,
- std::default_random_engine *rng,
- std::mutex *updateMtx,
- std::atomic<size_t> *epochNum,
- const std::vector<std::string>& serverIPs,
- const std::vector<int>& serverPorts,
- const std::string& selfIP,
- int selfPort)
- : prsonaServer(prsonaServer), rng(rng), updateMtx(updateMtx),
- epochNum(epochNum), serverIPs(serverIPs), serverPorts(serverPorts),
- selfIP(selfIP), selfPort(selfPort)
- { /* */ }
- bool PrsonaServerWebSocketHandler::handleConnection(
- CivetServer *server,
- const struct mg_connection *conn)
- {
- const struct mg_request_info *info = mg_get_request_info(conn);
-
- bool flag = info->query_string && info->query_string[0] >= PRSONA_ADD_CLIENT && info->query_string[0] <= PRSONA_RECEIVE_PARTIAL_DECRYPTION;
- flag = flag || (info->query_string && info->query_string[0] == PRSONA_GET_FRESH_GENERATOR);
- flag = flag || (info->query_string && info->query_string[0] == PRSONA_GET_EG_BLIND_GENERATOR);
- return flag;
- }
- void PrsonaServerWebSocketHandler::handleReadyState(
- CivetServer *server,
- struct mg_connection *conn)
- {
- const struct mg_request_info *info = mg_get_request_info(conn);
- switch (info->query_string[0])
- {
- case PRSONA_ADD_CLIENT:
- case PRSONA_RECEIVE_VOTE:
- case PRSONA_GET_VOTES_BY:
- case PRSONA_GET_USER_TALLY:
- case PRSONA_GET_SERVER_TALLY:
- case PRSONA_GET_VOTE_ROW_COMMITMENT:
- case PRSONA_GET_USER_TALLY_COMMITMENT:
- case PRSONA_GET_SERVER_TALLY_COMMITMENT:
- case PRSONA_ADD_CURR_SEED_TO_GENERATOR:
- case PRSONA_SET_FRESH_GENERATOR:
- case PRSONA_ADD_RAND_SEED_TO_GENERATOR:
- case PRSONA_SET_EG_BLIND_GENERATOR:
- case PRSONA_EPOCH_BUILD_UP:
- case PRSONA_EPOCH_BREAK_DOWN:
- case PRSONA_EPOCH_UPDATE:
- case PRSONA_NEW_USER_UPDATE:
- case PRSONA_RECEIVE_PARTIAL_DECRYPTION:
- set_temp_filename(*rng, conn);
- break;
- default:
- mg_set_user_connection_data(conn, NULL);
- break;
- }
- }
- bool PrsonaServerWebSocketHandler::handleData(
- CivetServer *server,
- struct mg_connection *conn,
- int bits,
- char *data,
- size_t data_len)
- {
- char *filename = (char *) mg_get_user_connection_data(conn);
- if ((bits & 0xf) == MG_WEBSOCKET_OPCODE_DATACOMPLETE)
- {
- generate_response(conn, filename);
- return false;
- }
- if ((bits & 0xf) != MG_WEBSOCKET_OPCODE_BINARY && (bits & 0xf) != MG_WEBSOCKET_OPCODE_CONTINUATION)
- {
- std::cerr << "Unknown opcode: failing." << std::endl;
- return false;
- }
- if (filename)
- {
- FILE *currFile = fopen(filename, "ab");
- fwrite(data, sizeof(char), data_len, currFile);
- fclose(currFile);
- }
-
- return true;
- }
- void PrsonaServerWebSocketHandler::generate_response(
- struct mg_connection *conn,
- const char *filename)
- {
- const struct mg_request_info *info = mg_get_request_info(conn);
- switch (info->query_string[0])
- {
- case PRSONA_ADD_CLIENT:
- add_new_client(conn, filename);
- break;
- case PRSONA_RECEIVE_VOTE:
- receive_vote(conn, filename);
- break;
- case PRSONA_GET_BGN_PUBKEY:
- get_bgn_public_key(conn);
- break;
- case PRSONA_GET_NUM_CLIENTS:
- get_num_clients(conn);
- break;
- case PRSONA_GET_NUM_SERVERS:
- get_num_servers(conn);
- break;
- case PRSONA_GET_VOTES_BY:
- get_current_votes_by(conn, filename);
- break;
- case PRSONA_GET_ALL_VOTES:
- get_all_current_votes(conn);
- break;
- case PRSONA_GET_USER_TALLY:
- get_current_user_encrypted_tally(conn, filename);
- break;
- case PRSONA_GET_SERVER_TALLY:
- get_current_server_encrypted_tally(conn, filename);
- break;
- case PRSONA_GET_PSEUDONYMS:
- get_current_pseudonyms(conn);
- break;
- case PRSONA_GET_VOTE_ROW_COMMITMENT:
- get_vote_row_commitment(conn, filename);
- break;
- case PRSONA_GET_VOTE_MATRIX_COMMITMENT:
- get_vote_matrix_commitment(conn);
- break;
- case PRSONA_GET_USER_TALLY_COMMITMENT:
- get_user_tally_commitment(conn, filename);
- break;
- case PRSONA_GET_SERVER_TALLY_COMMITMENT:
- get_server_tally_commitment(conn, filename);
- break;
- case PRSONA_GET_PSEUDONYMS_COMMITMENT:
- get_pseudonyms_commitment(conn);
- break;
- case PRSONA_GET_BGN_DETAILS:
- get_bgn_details(conn);
- break;
- case PRSONA_ADD_CURR_SEED_TO_GENERATOR:
- add_seed_to_generator(conn, filename, true);
- break;
- case PRSONA_SET_FRESH_GENERATOR:
- set_generator(filename, true);
- break;
- case PRSONA_ADD_RAND_SEED_TO_GENERATOR:
- add_seed_to_generator(conn, filename, false);
- break;
- case PRSONA_SET_EG_BLIND_GENERATOR:
- set_generator(filename, false);
- break;
- case PRSONA_EPOCH_BUILD_UP:
- build_up_midway_pseudonyms(conn, filename);
- break;
- case PRSONA_EPOCH_BREAK_DOWN:
- break_down_midway_pseudonyms(conn, filename);
- break;
- case PRSONA_EPOCH_UPDATE:
- accept_epoch_updates(conn, filename);
- break;
- case PRSONA_NEW_USER_UPDATE:
- import_new_user_update(conn, filename);
- break;
- case PRSONA_GET_PARTIAL_DECRYPTION:
- get_partial_decryption(conn);
- break;
- case PRSONA_RECEIVE_PARTIAL_DECRYPTION:
- receive_tallied_scores(conn, filename);
- break;
- case PRSONA_GET_FRESH_GENERATOR:
- get_generator(conn, true);
- break;
- case PRSONA_GET_EG_BLIND_GENERATOR:
- get_generator(conn, false);
- break;
- default:
- break;
- }
- }
- void PrsonaServerWebSocketHandler::handleClose(
- CivetServer *server,
- const struct mg_connection *conn)
- {
- char *filename = (char *) mg_get_user_connection_data(conn);
- if (!filename)
- return;
- remove(filename);
- delete [] filename;
- }
- /*
- * BASIC PUBLIC SYSTEM INFO GETTERS
- */
- void PrsonaServerWebSocketHandler::get_bgn_public_key(
- struct mg_connection *conn) const
- {
- std::stringstream buffer;
- std::string data;
- BGNPublicKey pubKey = prsonaServer->get_bgn_public_key();
- buffer << pubKey;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_num_clients(
- struct mg_connection *conn) const
- {
- std::stringstream buffer;
- std::string data;
- BinarySizeT numClients(prsonaServer->get_num_clients());
- buffer << numClients;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_num_servers(
- struct mg_connection *conn) const
- {
- std::stringstream buffer;
- std::string data;
- BinarySizeT numServers(prsonaServer->get_num_servers());
- buffer << numServers;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- /*
- * ENCRYPTED DATA GETTERS
- */
- void PrsonaServerWebSocketHandler::get_current_votes_by(
- struct mg_connection *conn, const char *filename) const
- {
- std::ifstream file(filename);
- Twistpoint shortTermPublicKey;
- file >> shortTermPublicKey;
- std::stringstream buffer;
- std::string data;
- Proof pi;
- std::vector<TwistBipoint> votes =
- prsonaServer->get_current_votes_by(pi, shortTermPublicKey);
-
- buffer << pi;
-
- BinarySizeT sizeOfVector(votes.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << votes[i];
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_all_current_votes(
- struct mg_connection *conn) const
- {
- std::stringstream buffer;
- std::string data;
- Proof pi;
- std::vector<std::vector<TwistBipoint>> votes =
- prsonaServer->get_all_current_votes(pi);
-
- buffer << pi;
-
- BinarySizeT sizeOfVector(votes.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- for (size_t j = 0; j < sizeOfVector.val(); j++)
- buffer << votes[i][j];
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_current_user_encrypted_tally(
- struct mg_connection *conn, const char *filename) const
- {
- std::ifstream file(filename);
- Twistpoint shortTermPublicKey;
- file >> shortTermPublicKey;
- std::stringstream buffer;
- std::string data;
- Proof pi;
- EGCiphertext tally =
- prsonaServer->get_current_user_encrypted_tally(pi, shortTermPublicKey);
-
- buffer << pi;
- buffer << tally;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_current_server_encrypted_tally(
- struct mg_connection *conn, const char *filename) const
- {
- std::ifstream file(filename);
- Twistpoint shortTermPublicKey;
- file >> shortTermPublicKey;
- std::stringstream buffer;
- std::string data;
- Proof pi;
- CurveBipoint tally =
- prsonaServer->get_current_server_encrypted_tally(pi, shortTermPublicKey);
-
- buffer << pi;
- buffer << tally;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_current_pseudonyms(
- struct mg_connection *conn) const
- {
- std::stringstream buffer;
- std::string data;
- Proof pi;
- std::vector<Twistpoint> pseudonyms =
- prsonaServer->get_current_pseudonyms(pi);
-
- buffer << pi;
- BinarySizeT sizeOfVector(pseudonyms.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << pseudonyms[i];
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- /*
- * PROOF COMMITMENT GETTERS
- */
- void PrsonaServerWebSocketHandler::get_vote_row_commitment(
- struct mg_connection *conn, const char *filename) const
- {
- std::ifstream file(filename);
- Twistpoint shortTermPublicKey;
- file >> shortTermPublicKey;
- std::stringstream buffer;
- std::string data;
- Proof pi =
- prsonaServer->get_vote_row_commitment(shortTermPublicKey);
-
- buffer << pi;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_vote_matrix_commitment(
- struct mg_connection *conn) const
- {
- std::stringstream buffer;
- std::string data;
- Proof pi =
- prsonaServer->get_vote_matrix_commitment();
-
- buffer << pi;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_user_tally_commitment(
- struct mg_connection *conn, const char *filename) const
- {
- std::ifstream file(filename);
- Twistpoint shortTermPublicKey;
- file >> shortTermPublicKey;
- std::stringstream buffer;
- std::string data;
- Proof pi =
- prsonaServer->get_user_tally_commitment(shortTermPublicKey);
-
- buffer << pi;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_server_tally_commitment(
- struct mg_connection *conn, const char *filename) const
- {
- std::ifstream file(filename);
- Twistpoint shortTermPublicKey;
- file >> shortTermPublicKey;
- std::stringstream buffer;
- std::string data;
- Proof pi =
- prsonaServer->get_server_tally_commitment(shortTermPublicKey);
-
- buffer << pi;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::get_pseudonyms_commitment(
- struct mg_connection *conn) const
- {
- std::stringstream buffer;
- std::string data;
- Proof pi =
- prsonaServer->get_pseudonyms_commitment();
-
- buffer << pi;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::distribute_new_user_updates(
- const std::vector<Proof>& proofOfValidAddition,
- const std::vector<CurveBipoint>& previousVoteTallies,
- const std::vector<Twistpoint>& currentPseudonyms,
- const std::vector<EGCiphertext>& currentUserEncryptedTallies,
- const std::vector<std::vector<TwistBipoint>>& voteMatrix) const
- {
- struct synchronization_tool distributeSync;
- std::stringstream buffer;
- std::string data;
- BinarySizeT sizeOfVector;
- sizeOfVector.set(proofOfValidAddition.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << proofOfValidAddition[i];
- sizeOfVector.set(previousVoteTallies.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << previousVoteTallies[i];
- sizeOfVector.set(currentPseudonyms.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << currentPseudonyms[i];
- sizeOfVector.set(currentUserEncryptedTallies.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << currentUserEncryptedTallies[i];
- sizeOfVector.set(voteMatrix.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- for (size_t j = 0; j < sizeOfVector.val(); j++)
- buffer << voteMatrix[i][j];
- data = buffer.str();
- size_t i = 0;
- while (i < serverIPs.size())
- {
- if (serverIPs[i] == selfIP && serverPorts[i] == selfPort)
- {
- i++;
- continue;
- }
- struct mg_connection *conn =
- mg_connect_websocket_client(
- serverIPs[i].c_str(),
- serverPorts[i],
- USE_SSL,
- NULL,
- 0,
- GIVE_NEW_USER_URI,
- "null",
- synchro_websocket_data_handler,
- synchro_websocket_close_handler,
- (void *) &distributeSync);
- if (!conn)
- {
- std::cerr << "Couldn't give server " << i << " new user" << std::endl;
- continue;
- }
- std::unique_lock<std::mutex> syncLock(distributeSync.mtx);
- distributeSync.val = 0;
- distributeSync.val2 = 0;
- mg_websocket_client_write(
- conn,
- MG_WEBSOCKET_OPCODE_BINARY,
- data.c_str(),
- data.length());
- mg_websocket_client_write(
- conn,
- MG_WEBSOCKET_OPCODE_DATACOMPLETE,
- "",
- 0);
- while (!distributeSync.val2)
- distributeSync.cv.wait(syncLock);
- mg_close_connection(conn);
- if (distributeSync.val)
- i++;
- }
- }
- void PrsonaServerWebSocketHandler::distribute_new_vote(
- std::vector<Proof> pi,
- std::vector<TwistBipoint> newVotes,
- Twistpoint shortTermPublicKey) const
- {
- struct synchronization_tool distributeSync;
- std::stringstream buffer;
- std::string data;
- BinarySizeT sizeOfVector;
- sizeOfVector.set(pi.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << pi[i];
- sizeOfVector.set(newVotes.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << newVotes[i];
- buffer << shortTermPublicKey;
- BinaryBool flag(false);
- buffer << flag;
- data = buffer.str();
- size_t i = 0;
- while (i < serverIPs.size())
- {
- if (serverIPs[i] == selfIP && serverPorts[i] == selfPort)
- {
- i++;
- continue;
- }
- struct mg_connection *conn =
- mg_connect_websocket_client(
- serverIPs[i].c_str(),
- serverPorts[i],
- USE_SSL,
- NULL,
- 0,
- GIVE_NEW_VOTE_URI,
- "null",
- synchro_websocket_data_handler,
- synchro_websocket_close_handler,
- (void *) &distributeSync);
- if (!conn)
- {
- std::cerr << "Couldn't give server " << i << " new user" << std::endl;
- continue;
- }
- std::unique_lock<std::mutex> syncLock(distributeSync.mtx);
- distributeSync.val = 0;
- distributeSync.val2 = 0;
- mg_websocket_client_write(
- conn,
- MG_WEBSOCKET_OPCODE_BINARY,
- data.c_str(),
- data.length());
- mg_websocket_client_write(
- conn,
- MG_WEBSOCKET_OPCODE_DATACOMPLETE,
- "",
- 0);
- while (!distributeSync.val2)
- distributeSync.cv.wait(syncLock);
- mg_close_connection(conn);
- if (distributeSync.val)
- i++;
- }
- }
- /*
- * CLIENT INTERACTIONS
- */
- void PrsonaServerWebSocketHandler::add_new_client(
- struct mg_connection *conn, const char *filename)
- {
- struct synchronization_tool updateSync;
- std::ifstream file(filename);
- Proof proofOfValidKey;
- file >> proofOfValidKey;
- Twistpoint shortTermPublicKey, empty;
- file >> shortTermPublicKey;
- std::unique_lock<std::mutex> lck(*updateMtx, std::defer_lock);
- obtain_update_locks(
- lck,
- serverIPs,
- serverPorts,
- selfIP,
- selfPort,
- &updateSync);
- std::vector<Proof> proofOfValidAddition;
- prsonaServer->add_new_client(
- proofOfValidAddition,
- proofOfValidKey,
- shortTermPublicKey);
- std::vector<CurveBipoint> previousVoteTallies;
- std::vector<Twistpoint> currentPseudonyms;
- std::vector<EGCiphertext> currentUserEncryptedTallies;
- std::vector<std::vector<TwistBipoint>> voteMatrix;
- prsonaServer->export_new_user_update(
- previousVoteTallies,
- currentPseudonyms,
- currentUserEncryptedTallies,
- voteMatrix);
- distribute_new_user_updates(
- proofOfValidAddition,
- previousVoteTallies,
- currentPseudonyms,
- currentUserEncryptedTallies,
- voteMatrix);
- release_update_locks(
- lck,
- serverIPs,
- serverPorts,
- selfIP,
- selfPort,
- &updateSync);
- std::stringstream buffer;
- std::string data;
- BinarySizeT sizeOfVector(proofOfValidAddition.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << proofOfValidAddition[i];
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::receive_vote(
- struct mg_connection *conn, const char *filename)
- {
- struct synchronization_tool distributeSync;
- std::ifstream file(filename);
- BinarySizeT sizeOfVector;
- file >> sizeOfVector;
- std::vector<Proof> pi;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- Proof currProof;
- file >> currProof;
- pi.push_back(currProof);
- }
- file >> sizeOfVector;
- std::vector<TwistBipoint> newVotes;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- TwistBipoint currVote;
- file >> currVote;
- newVotes.push_back(currVote);
- }
- Twistpoint shortTermPublicKey;
- file >> shortTermPublicKey;
- std::stringstream helper;
- helper << shortTermPublicKey;
- BinaryBool shouldDeal;
- file >> shouldDeal;
- std::unique_lock<std::mutex> lck(*updateMtx, std::defer_lock);
- if (shouldDeal.val())
- {
- obtain_update_locks(
- lck,
- serverIPs,
- serverPorts,
- selfIP,
- selfPort,
- &distributeSync);
- }
- prsonaServer->receive_vote(
- pi,
- newVotes,
- shortTermPublicKey);
- if (shouldDeal.val())
- {
- distribute_new_vote(pi, newVotes, shortTermPublicKey);
- release_update_locks(
- lck,
- serverIPs,
- serverPorts,
- selfIP,
- selfPort,
- &distributeSync);
- }
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_DATACOMPLETE, "", 0);
- }
- /*
- * CONSTRUCTOR HELPERS
- */
- void PrsonaServerWebSocketHandler::get_bgn_details(
- struct mg_connection *conn) const
- {
- std::stringstream buffer;
- std::string data;
- const BGN& sharedBGN = prsonaServer->get_bgn_details();
- buffer << sharedBGN;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::add_seed_to_generator(
- struct mg_connection *conn, const char *filename, bool fresh) const
- {
- std::ifstream file(filename);
- Twistpoint currGenerator;
- file >> currGenerator;
- std::stringstream buffer;
- std::string data;
- std::vector<Proof> pi;
- if (fresh)
- {
- currGenerator =
- prsonaServer->add_curr_seed_to_generator(pi, currGenerator);
- }
- else
- {
- currGenerator =
- prsonaServer->add_rand_seed_to_generator(pi, currGenerator);
- }
-
- buffer << pi[0];
- buffer << currGenerator;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- }
- void PrsonaServerWebSocketHandler::set_generator(
- const char *filename, bool fresh)
- {
- std::ifstream file(filename);
- BinarySizeT sizeOfVector;
- file >> sizeOfVector;
- std::vector<Proof> pi;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- Proof currProof;
- file >> currProof;
- pi.push_back(currProof);
- }
- Twistpoint newGenerator;
- file >> newGenerator;
- if (fresh)
- prsonaServer->initialize_fresh_generator(pi, newGenerator);
- else
- prsonaServer->set_EG_blind_generator(pi, newGenerator);
- }
- /*
- * EPOCH ROUNDS
- */
- void PrsonaServerWebSocketHandler::build_up_midway_pseudonyms(
- struct mg_connection *conn, const char *filename)
- {
- std::vector<std::vector<Proof>> generatorProofHolder;
- std::vector<Proof> generatorProof;
- Twistpoint nextGenerator;
- read_epoch_initiator_string(
- filename,
- generatorProof,
- nextGenerator);
- generatorProofHolder.push_back(generatorProof);
- std::vector<std::vector<std::vector<Proof>>> pi;
- std::vector<std::vector<std::vector<Twistpoint>>> permutationCommits;
- std::vector<std::vector<std::vector<Twistpoint>>> freshPseudonymCommits;
- std::vector<std::vector<std::vector<Twistpoint>>> freshPseudonymSeedCommits;
- std::vector<std::vector<std::vector<CurveBipoint>>> serverTallyCommits;
- std::vector<std::vector<std::vector<std::vector<TwistBipoint>>>> partwayVoteMatrixCommits;
- std::vector<std::vector<std::vector<std::vector<TwistBipoint>>>> finalVoteMatrixCommits;
- pi.push_back(generatorProofHolder);
- prsonaServer->build_up_midway_pseudonyms(
- pi,
- permutationCommits,
- freshPseudonymCommits,
- freshPseudonymSeedCommits,
- serverTallyCommits,
- partwayVoteMatrixCommits,
- finalVoteMatrixCommits,
- nextGenerator);
- std::vector<std::vector<Twistpoint>> userTallyMaskCommits, userTallyMessageCommits, userTallySeedCommits;
- std::string data =
- make_epoch_update_string(
- pi[1],
- permutationCommits[0],
- freshPseudonymCommits[0],
- freshPseudonymSeedCommits[0],
- serverTallyCommits[0],
- partwayVoteMatrixCommits[0],
- finalVoteMatrixCommits[0],
- userTallyMaskCommits,
- userTallyMessageCommits,
- userTallySeedCommits,
- nextGenerator,
- false);
- struct synchronization_tool epochSync;
- std::vector<struct mg_connection *> conns;
- std::unique_lock<std::mutex> lck(epochSync.mtx);
- epochSync.val = 1;
- for (size_t i = 0; i < serverIPs.size(); i++)
- {
- if (serverIPs[i] == selfIP && serverPorts[i] == selfPort)
- continue;
- struct mg_connection *currConn =
- distribute_epoch_updates(
- serverIPs[i],
- serverPorts[i],
- data,
- &epochSync);
- conns.push_back(currConn);
- }
- while (epochSync.val < serverIPs.size())
- epochSync.cv.wait(lck);
- for (size_t i = 0; i < conns.size(); i++)
- mg_close_connection(conns[i]);
-
- data = make_epoch_initiator_string(
- pi[0][0],
- nextGenerator);
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_DATACOMPLETE, "", 0);
- }
- void PrsonaServerWebSocketHandler::break_down_midway_pseudonyms(
- struct mg_connection *conn, const char *filename)
- {
- std::vector<Proof> generatorProof;
- Twistpoint nextGenerator;
- read_epoch_initiator_string(
- filename,
- generatorProof,
- nextGenerator);
- std::vector<std::vector<std::vector<Proof>>> pi;
- std::vector<std::vector<std::vector<Twistpoint>>> permutationCommits;
- std::vector<std::vector<std::vector<Twistpoint>>> freshPseudonymCommits;
- std::vector<std::vector<std::vector<Twistpoint>>> freshPseudonymSeedCommits;
- std::vector<std::vector<std::vector<CurveBipoint>>> serverTallyCommits;
- std::vector<std::vector<std::vector<std::vector<TwistBipoint>>>> partwayVoteMatrixCommits;
- std::vector<std::vector<std::vector<std::vector<TwistBipoint>>>> finalVoteMatrixCommits;
- std::vector<std::vector<std::vector<Twistpoint>>> userTallyMaskCommits;
- std::vector<std::vector<std::vector<Twistpoint>>> userTallyMessageCommits;
- std::vector<std::vector<std::vector<Twistpoint>>> userTallySeedCommits;
- prsonaServer->break_down_midway_pseudonyms(
- generatorProof,
- pi,
- permutationCommits,
- freshPseudonymCommits,
- freshPseudonymSeedCommits,
- serverTallyCommits,
- partwayVoteMatrixCommits,
- finalVoteMatrixCommits,
- userTallyMaskCommits,
- userTallyMessageCommits,
- userTallySeedCommits,
- nextGenerator);
- std::string data =
- make_epoch_update_string(
- pi[0],
- permutationCommits[0],
- freshPseudonymCommits[0],
- freshPseudonymSeedCommits[0],
- serverTallyCommits[0],
- partwayVoteMatrixCommits[0],
- finalVoteMatrixCommits[0],
- userTallyMaskCommits[0],
- userTallyMessageCommits[0],
- userTallySeedCommits[0],
- nextGenerator,
- true);
- struct synchronization_tool epochSync;
- std::vector<struct mg_connection *> conns;
- epochSync.val = 1;
- for (size_t i = 0; i < serverIPs.size(); i++)
- {
- if (serverIPs[i] == selfIP && serverPorts[i] == selfPort)
- continue;
- struct mg_connection *currConn =
- distribute_epoch_updates(
- serverIPs[i],
- serverPorts[i],
- data,
- &epochSync);
- conns.push_back(currConn);
- }
- std::unique_lock<std::mutex> lck(epochSync.mtx);
- while (epochSync.val < serverIPs.size())
- epochSync.cv.wait(lck);
- for (size_t i = 0; i < conns.size(); i++)
- mg_close_connection(conns[i]);
- epochNum->fetch_add(1);
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_DATACOMPLETE, "", 0);
- }
- void PrsonaServerWebSocketHandler::accept_epoch_updates(
- struct mg_connection *conn, const char *filename)
- {
- std::vector<std::vector<Proof>> pi;
- std::vector<std::vector<Twistpoint>> permutationCommits;
- std::vector<std::vector<Twistpoint>> freshPseudonymCommits;
- std::vector<std::vector<Twistpoint>> freshPseudonymSeedCommits;
- std::vector<std::vector<CurveBipoint>> serverTallyCommits;
- std::vector<std::vector<std::vector<TwistBipoint>>> partwayVoteMatrixCommits;
- std::vector<std::vector<std::vector<TwistBipoint>>> finalVoteMatrixCommits;
- std::vector<std::vector<Twistpoint>> userTallyMaskCommits;
- std::vector<std::vector<Twistpoint>> userTallyMessageCommits;
- std::vector<std::vector<Twistpoint>> userTallySeedCommits;
- Twistpoint nextGenerator;
- bool doUserTallies =
- read_epoch_update_string(
- filename,
- pi,
- permutationCommits,
- freshPseudonymCommits,
- freshPseudonymSeedCommits,
- serverTallyCommits,
- partwayVoteMatrixCommits,
- finalVoteMatrixCommits,
- userTallyMaskCommits,
- userTallyMessageCommits,
- userTallySeedCommits,
- nextGenerator);
- prsonaServer->accept_epoch_updates(
- pi,
- permutationCommits,
- freshPseudonymCommits,
- freshPseudonymSeedCommits,
- serverTallyCommits,
- partwayVoteMatrixCommits,
- finalVoteMatrixCommits,
- userTallyMaskCommits,
- userTallyMessageCommits,
- userTallySeedCommits,
- nextGenerator,
- doUserTallies);
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_DATACOMPLETE, "", 0);
- }
- /*
- * DATA MAINTENANCE
- */
- void PrsonaServerWebSocketHandler::import_new_user_update(
- struct mg_connection *conn, const char *filename)
- {
- std::vector<Proof> proofOfValidAddition;
- std::vector<CurveBipoint> previousVoteTallies;
- std::vector<Twistpoint> currentPseudonyms;
- std::vector<EGCiphertext> currentUserEncryptedTallies;
- std::vector<std::vector<TwistBipoint>> voteMatrix;
- std::ifstream file(filename);
- BinarySizeT sizeOfVector;
-
- file >> sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- Proof currProof;
- file >> currProof;
- proofOfValidAddition.push_back(currProof);
- }
- file >> sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- CurveBipoint currTally;
- file >> currTally;
- previousVoteTallies.push_back(currTally);
- }
- file >> sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- Twistpoint currNym;
- file >> currNym;
- currentPseudonyms.push_back(currNym);
- }
- file >> sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- EGCiphertext currTally;
- file >> currTally;
- currentUserEncryptedTallies.push_back(currTally);
- }
- file >> sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- std::vector<TwistBipoint> currRow;
- for (size_t j = 0; j < sizeOfVector.val(); j++)
- {
- TwistBipoint currVote;
- file >> currVote;
- currRow.push_back(currVote);
- }
- voteMatrix.push_back(currRow);
- }
- prsonaServer->import_new_user_update(
- proofOfValidAddition,
- previousVoteTallies,
- currentPseudonyms,
- currentUserEncryptedTallies,
- voteMatrix);
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_DATACOMPLETE, "", 0);
- }
- void PrsonaServerWebSocketHandler::get_partial_decryption(
- struct mg_connection *conn) const
- {
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_DATACOMPLETE, "", 0);
- }
- void PrsonaServerWebSocketHandler::receive_tallied_scores(
- struct mg_connection *conn, const char *filename)
- {
- std::ifstream file(filename);
- std::vector<EGCiphertext> userScores;
- std::vector<CurveBipoint> serverScores;
- BinarySizeT sizeOfVector;
- file >> sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- EGCiphertext currScore;
- file >> currScore;
- userScores.push_back(currScore);
- }
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- {
- CurveBipoint currScore;
- file >> currScore;
- serverScores.push_back(currScore);
- }
- prsonaServer->receive_tallied_scores(userScores, serverScores);
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_DATACOMPLETE, "", 0);
- }
- void PrsonaServerWebSocketHandler::get_generator(
- struct mg_connection *conn, bool fresh)
- {
- Twistpoint generator;
- std::vector<Proof> pi;
- if (fresh)
- generator = prsonaServer->get_fresh_generator(pi);
- else
- generator = prsonaServer->get_blinding_generator(pi);
- std::stringstream buffer;
- std::string data;
- BinarySizeT sizeOfVector(pi.size());
- buffer << sizeOfVector;
- for (size_t i = 0; i < sizeOfVector.val(); i++)
- buffer << pi[i];
- buffer << generator;
- data = buffer.str();
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_BINARY, data.c_str(), data.length());
- mg_websocket_write(conn, MG_WEBSOCKET_OPCODE_DATACOMPLETE, "", 0);
- }
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