104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
/* This file is part of libbrandt.
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* Copyright (C) 2016 GNUnet e.V.
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*
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* libbrandt is free software: you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libbrandt is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* libbrandt. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file test_crypto.c
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* @brief testing crypto and smc functions.
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*/
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#include "brandt.h"
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#include "crypto.h"
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#include "smc.h"
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#include "test.h"
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extern gcry_mpi_point_t ec_gen;
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extern gcry_ctx_t ec_ctx;
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int
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test_brandt_ec_keypair_create ()
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{
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gcry_mpi_t skey;
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gcry_mpi_point_t pkey1;
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gcry_mpi_point_t pkey2 = gcry_mpi_point_new (0);
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brandt_ec_keypair_create (&pkey1, &skey);
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check (skey, "no sec key created");
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check (pkey1, "no pub key created");
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check (pkey2, "could not init pkey2");
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gcry_mpi_ec_mul (pkey2, skey, ec_gen, ec_ctx);
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check (!brandt_ec_point_cmp (pkey1, pkey2), "pkeys do not match");
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gcry_mpi_release (skey);
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gcry_mpi_point_release (pkey1);
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gcry_mpi_point_release (pkey2);
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}
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int
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test_smc_zkp_dl ()
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{
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static int first = 1;
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gcry_mpi_t c;
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gcry_mpi_t r;
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gcry_mpi_t s;
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gcry_mpi_t x;
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gcry_mpi_point_t a;
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gcry_mpi_point_t g;
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gcry_mpi_point_t v = gcry_mpi_point_new (0);
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check (v, "no pub key initialized");
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brandt_ec_keypair_create (&g, &s);
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check (g, "no gen created");
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if (first)
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{
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gcry_mpi_ec_mul (g, GCRYMPI_CONST_ONE, ec_gen, ec_ctx);
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first = 0;
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}
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brandt_ec_skey_create (&x);
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check (x, "no sec key created");
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gcry_mpi_ec_mul (v, x, g, ec_ctx);
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check (v, "no pub key created");
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smc_zkp_dl (v, g, x, &a, &c, &r);
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check (!smc_zkp_dl_check (v, g, a, c, r), "zkp was false, should be true");
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gcry_mpi_release (c);
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gcry_mpi_release (r);
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gcry_mpi_release (s);
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gcry_mpi_release (x);
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gcry_mpi_point_release (a);
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gcry_mpi_point_release (g);
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gcry_mpi_point_release (v);
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}
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int
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main (int argc, char *argv[])
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{
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int repeat = 50;
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int i;
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BRANDT_init ();
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for (i = 0; i < repeat; i++)
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{
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run (test_brandt_ec_keypair_create);
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run (test_smc_zkp_dl);
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}
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return ret;
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}
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