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/*
This file is part of TALER
Copyright (C) 2014-2024 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file util/taler-exchange-secmod-eddsa.c
* @brief Standalone process to perform private key EDDSA operations
* @author Christian Grothoff
*
* Key design points:
* - EVERY thread of the exchange will have its own pair of connections to the
* crypto helpers. This way, every threat will also have its own /keys state
* and avoid the need to synchronize on those.
* - auditor signatures and master signatures are to be kept in the exchange DB,
* and merged with the public keys of the helper by the exchange HTTPD!
* - the main loop of the helper is SINGLE-THREADED, but there are
* threads for crypto-workers which (only) do the signing in parallel,
* one per client.
* - thread-safety: signing happens in parallel, thus when REMOVING private keys,
* we must ensure that all signers are done before we fully free() the
* private key. This is done by reference counting (as work is always
* assigned and collected by the main thread).
*/
#include "platform.h"
#include "taler_util.h"
/**
* The entry point.
*
* @param argc number of arguments in @a argv
* @param argv command-line arguments
* @return 0 on normal termination
*/
int
main (int argc,
char **argv)
{
struct TALER_SECMOD_Options opts = {
.max_workers = 16,
.section = "taler-exchange"
};
struct GNUNET_GETOPT_CommandLineOption options[] = {
TALER_SECMOD_OPTIONS (&opts),
GNUNET_GETOPT_OPTION_END
};
enum GNUNET_GenericReturnValue ret;
/* Restrict permissions for the key files that we create. */
(void) umask (S_IWGRP | S_IROTH | S_IWOTH | S_IXOTH);
opts.global_now_tmp
= opts.global_now = GNUNET_TIME_timestamp_get ();
ret = GNUNET_PROGRAM_run (TALER_EXCHANGE_project_data (),
argc,
argv,
"taler-exchange-secmod-eddsa",
"Handle private EDDSA key operations for a Taler exchange",
options,
&TALER_SECMOD_eddsa_run,
&opts);
if (GNUNET_NO == ret)
return EXIT_SUCCESS;
if (GNUNET_SYSERR == ret)
return EXIT_INVALIDARGUMENT;
return opts.global_ret;
}
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