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Make the NTRU parameter set configurable

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This commit is contained in:
Andreas Steffen
2013-11-27 20:21:41 +01:00
parent 2c620cb089
commit 1f73969eb5
3 changed files with 118 additions and 43 deletions
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src/libstrongswan/tests/suites/test_ntru.c
+66 -29
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@@ -28,12 +28,19 @@ static struct {
{ NTRU_256_BIT, "NTRU_256" }
};
START_TEST(test_ke)
/**
* NTRU parameter set selection
*/
char *param_set_selection[] = {
"x9_98_speed", "x9_98_bandwidth", "x9_98_balance", "optimum"
};
START_TEST(test_ntru_ke)
{
chunk_t pub_key, cipher_text, i_shared_secret, r_shared_secret;
diffie_hellman_t *i_ntru, *r_ntru;
char buf[10];
int len;
int n, len;
status_t status;
len = snprintf(buf, sizeof(buf), "%N", diffie_hellman_group_names,
@@ -41,37 +48,63 @@ START_TEST(test_ke)
ck_assert(len == 8);
ck_assert(streq(buf, params[_i].group_name));
i_ntru = lib->crypto->create_dh(lib->crypto, params[_i].group);
ck_assert(i_ntru != NULL);
ck_assert(i_ntru->get_dh_group(i_ntru) == params[_i].group);
for (n = 0; n < countof(param_set_selection); n++)
{
lib->settings->set_str(lib->settings,
"libcharon.plugins.ntru.param_set_selection",
param_set_selection[n]);
i_ntru->get_my_public_value(i_ntru, &pub_key);
ck_assert(pub_key.len > 0);
i_ntru = lib->crypto->create_dh(lib->crypto, params[_i].group);
ck_assert(i_ntru != NULL);
ck_assert(i_ntru->get_dh_group(i_ntru) == params[_i].group);
r_ntru = lib->crypto->create_dh(lib->crypto, params[_i].group);
ck_assert(r_ntru != NULL);
i_ntru->get_my_public_value(i_ntru, &pub_key);
ck_assert(pub_key.len > 0);
r_ntru->set_other_public_value(r_ntru, pub_key);
r_ntru = lib->crypto->create_dh(lib->crypto, params[_i].group);
ck_assert(r_ntru != NULL);
r_ntru->set_other_public_value(r_ntru, pub_key);
r_ntru->get_my_public_value(r_ntru, &cipher_text);
ck_assert(cipher_text.len > 0);
status = r_ntru->get_shared_secret(r_ntru, &r_shared_secret);
ck_assert(status == SUCCESS);
ck_assert(r_shared_secret.len > 0);
i_ntru->set_other_public_value(i_ntru, cipher_text);
status = i_ntru->get_shared_secret(i_ntru, &i_shared_secret);
if (status == SUCCESS)
{
ck_assert(chunk_equals(i_shared_secret, r_shared_secret));
}
else
{
ck_assert(i_shared_secret.len == 0);
}
chunk_clear(&i_shared_secret);
chunk_clear(&r_shared_secret);
chunk_free(&pub_key);
chunk_free(&cipher_text);
i_ntru->destroy(i_ntru);
r_ntru->destroy(r_ntru);
}
}
END_TEST
START_TEST(test_ntru_pubkey)
{
diffie_hellman_t *r_ntru;
chunk_t cipher_text;
r_ntru = lib->crypto->create_dh(lib->crypto, NTRU_128_BIT);
r_ntru->set_other_public_value(r_ntru, chunk_empty);
r_ntru->get_my_public_value(r_ntru, &cipher_text);
ck_assert(cipher_text.len > 0);
i_ntru->set_other_public_value(i_ntru, cipher_text);
status = i_ntru->get_shared_secret(i_ntru, &i_shared_secret);
ck_assert(status == SUCCESS);
ck_assert(i_shared_secret.len > 0);
status = r_ntru->get_shared_secret(r_ntru, &r_shared_secret);
ck_assert(status == SUCCESS);
ck_assert(r_shared_secret.len > 0);
ck_assert(chunk_equals(i_shared_secret, r_shared_secret));
chunk_clear(&i_shared_secret);
chunk_clear(&r_shared_secret);
chunk_free(&pub_key);
chunk_free(&cipher_text);
i_ntru->destroy(i_ntru);
ck_assert(cipher_text.len == 0);
r_ntru->destroy(r_ntru);
}
END_TEST
@@ -83,7 +116,11 @@ Suite *ntru_suite_create()
s = suite_create("ntru");
tc = tcase_create("ke");
tcase_add_loop_test(tc, test_ke, 0, countof(params));
tcase_add_loop_test(tc, test_ntru_ke, 0, countof(params));
suite_add_tcase(s, tc);
tc = tcase_create("pubkey");
tcase_add_test(tc, test_ntru_pubkey);
suite_add_tcase(s, tc);
return s;