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/*
* Copyright (C) 2012 Reto Buerki
* Copyright (C) 2012 Adrian-Ken Rueegsegger
* Hochschule fuer Technik Rapperswil
*
* This program 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 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program 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.
*/
#include <tests/test_suite.h>
#include <daemon.h>
#include <hydra.h>
#include <config/proposal.h>
#include <encoding/payloads/ike_header.h>
#include <tkm/client.h>
#include "tkm.h"
#include "tkm_nonceg.h"
#include "tkm_diffie_hellman.h"
#include "tkm_keymat.h"
#include "tkm_types.h"
START_TEST(test_derive_ike_keys)
{
proposal_t *proposal = proposal_create_from_string(PROTO_IKE,
"aes256-sha512-modp4096");
fail_if(!proposal, "Unable to create proposal");
ike_sa_id_t *ike_sa_id = ike_sa_id_create(IKEV2_MAJOR_VERSION,
123912312312, 32312313122, TRUE);
fail_if(!ike_sa_id, "Unable to create IKE SA ID");
tkm_keymat_t *keymat = tkm_keymat_create(TRUE);
fail_if(!keymat, "Unable to create keymat");
fail_if(!keymat->get_isa_id(keymat), "Invalid ISA context id (0)");
chunk_t nonce;
tkm_nonceg_t *ng = tkm_nonceg_create();
fail_if(!ng, "Unable to create nonce generator");
fail_unless(ng->nonce_gen.allocate_nonce(&ng->nonce_gen, 32, &nonce),
"Unable to allocate nonce");
ng->nonce_gen.destroy(&ng->nonce_gen);
tkm_diffie_hellman_t *dh = tkm_diffie_hellman_create(MODP_4096_BIT);
fail_if(!dh, "Unable to create DH");
/* Use the same pubvalue for both sides */
chunk_t pubvalue;
ck_assert(dh->dh.get_my_public_value(&dh->dh, &pubvalue));
ck_assert(dh->dh.set_other_public_value(&dh->dh, pubvalue));
fail_unless(keymat->keymat_v2.derive_ike_keys(&keymat->keymat_v2, proposal,
&dh->dh, nonce, nonce, ike_sa_id, PRF_UNDEFINED, chunk_empty),
"Key derivation failed");
chunk_free(&nonce);
aead_t * const aead = keymat->keymat_v2.keymat.get_aead(&keymat->keymat_v2.keymat, TRUE);
fail_if(!aead, "AEAD is NULL");
fail_if(aead->get_key_size(aead) != 96, "Key size mismatch %d",
aead->get_key_size(aead));
fail_if(aead->get_block_size(aead) != 16, "Block size mismatch %d",
aead->get_block_size(aead));
proposal->destroy(proposal);
dh->dh.destroy(&dh->dh);
ike_sa_id->destroy(ike_sa_id);
keymat->keymat_v2.keymat.destroy(&keymat->keymat_v2.keymat);
chunk_free(&pubvalue);
}
END_TEST
START_TEST(test_derive_child_keys)
{
tkm_diffie_hellman_t *dh = tkm_diffie_hellman_create(MODP_4096_BIT);
fail_if(!dh, "Unable to create DH object");
proposal_t *proposal = proposal_create_from_string(PROTO_ESP,
"aes256-sha512-modp4096");
fail_if(!proposal, "Unable to create proposal");
proposal->set_spi(proposal, 42);
tkm_keymat_t *keymat = tkm_keymat_create(TRUE);
fail_if(!keymat, "Unable to create keymat");
chunk_t encr_i, encr_r, integ_i, integ_r;
chunk_t nonce = chunk_from_chars("test chunk");
fail_unless(keymat->keymat_v2.derive_child_keys(&keymat->keymat_v2, proposal,
(diffie_hellman_t *)dh,
nonce, nonce, &encr_i,
&integ_i, &encr_r, &integ_r),
"Child key derivation failed");
esa_info_t *info = (esa_info_t *)encr_i.ptr;
fail_if(!info, "encr_i does not contain esa information");
fail_if(info->isa_id != keymat->get_isa_id(keymat),
"Isa context id mismatch (encr_i)");
fail_if(info->spi_r != 42,
"SPI mismatch (encr_i)");
fail_unless(chunk_equals(info->nonce_i, nonce),
"nonce_i mismatch (encr_i)");
fail_unless(chunk_equals(info->nonce_r, nonce),
"nonce_r mismatch (encr_i)");
fail_if(info->is_encr_r,
"Flag is_encr_r set for encr_i");
fail_if(info->dh_id != dh->get_id(dh),
"DH context id mismatch (encr_i)");
chunk_free(&info->nonce_i);
chunk_free(&info->nonce_r);
info = (esa_info_t *)encr_r.ptr;
fail_if(!info, "encr_r does not contain esa information");
fail_if(info->isa_id != keymat->get_isa_id(keymat),
"Isa context id mismatch (encr_r)");
fail_if(info->spi_r != 42,
"SPI mismatch (encr_r)");
fail_unless(chunk_equals(info->nonce_i, nonce),
"nonce_i mismatch (encr_r)");
fail_unless(chunk_equals(info->nonce_r, nonce),
"nonce_r mismatch (encr_r)");
fail_unless(info->is_encr_r,
"Flag is_encr_r set for encr_r");
fail_if(info->dh_id != dh->get_id(dh),
"DH context id mismatch (encr_i)");
chunk_free(&info->nonce_i);
chunk_free(&info->nonce_r);
proposal->destroy(proposal);
dh->dh.destroy(&dh->dh);
keymat->keymat_v2.keymat.destroy(&keymat->keymat_v2.keymat);
chunk_free(&encr_i);
chunk_free(&encr_r);
}
END_TEST
Suite *make_keymat_tests()
{
Suite *s;
TCase *tc;
s = suite_create("keymat");
tc = tcase_create("derive IKE keys");
tcase_add_test(tc, test_derive_ike_keys);
suite_add_tcase(s, tc);
tc = tcase_create("derive CHILD keys");
tcase_add_test(tc, test_derive_child_keys);
suite_add_tcase(s, tc);
return s;
}
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