src/libstrongswan/tests/suites/test_iv_gen.c

   1 /*
   2  * Copyright (C) 2015 Tobias Brunner
   3  *
   4  * Copyright (C) secunet Security Networks AG
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2 of the License, or (at your
   9  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * for more details.
  15  */
  16
  17 #include "test_suite.h"
  18
  19 #include <crypto/iv/iv_gen_seq.h>
  20 #include <utils/test.h>
  21
  22 START_TEST(test_iv_gen_seq)
  23 {
  24         iv_gen_t *iv_gen;
  25         uint64_t iv0, iv1_1, iv1_2;
  26
  27         iv_gen = iv_gen_seq_create();
  28         ck_assert(iv_gen->get_iv(iv_gen, 0, 8, (uint8_t*)&iv0));
  29         ck_assert(iv_gen->get_iv(iv_gen, 1, 8, (uint8_t*)&iv1_1));
  30         ck_assert(iv0 != iv1_1);
  31         /* every sequence number may be used twice, but results in a different IV */
  32         ck_assert(iv_gen->get_iv(iv_gen, 1, 8, (uint8_t*)&iv1_2));
  33         ck_assert(iv0 != iv1_2);
  34         ck_assert(iv1_1 != iv1_2);
  35         ck_assert(!iv_gen->get_iv(iv_gen, 1, 8, (uint8_t*)&iv1_2));
  36         iv_gen->destroy(iv_gen);
  37 }
  38 END_TEST
  39
  40 START_TEST(test_iv_gen_seq_len)
  41 {
  42         iv_gen_t *iv_gen;
  43         uint64_t iv;
  44         uint8_t buf[9];
  45
  46         iv_gen = iv_gen_seq_create();
  47         ck_assert(!iv_gen->get_iv(iv_gen, 0, 0, (uint8_t*)&iv));
  48         ck_assert(!iv_gen->get_iv(iv_gen, 0, 1, (uint8_t*)&iv));
  49         ck_assert(!iv_gen->get_iv(iv_gen, 0, 2, (uint8_t*)&iv));
  50         ck_assert(!iv_gen->get_iv(iv_gen, 0, 3, (uint8_t*)&iv));
  51         ck_assert(!iv_gen->get_iv(iv_gen, 0, 4, (uint8_t*)&iv));
  52         ck_assert(!iv_gen->get_iv(iv_gen, 0, 5, (uint8_t*)&iv));
  53         ck_assert(!iv_gen->get_iv(iv_gen, 0, 6, (uint8_t*)&iv));
  54         ck_assert(!iv_gen->get_iv(iv_gen, 0, 7, (uint8_t*)&iv));
  55         ck_assert(iv_gen->get_iv(iv_gen, 0, 8, (uint8_t*)&iv));
  56         ck_assert(iv_gen->get_iv(iv_gen, 0, 9, buf));
  57         iv_gen->destroy(iv_gen);
  58 }
  59 END_TEST
  60
  61 Suite *iv_gen_suite_create()
  62 {
  63         Suite *s;
  64         TCase *tc;
  65
  66         s = suite_create("iv-gen");
  67
  68         tc = tcase_create("iv-gen-seq");
  69         tcase_add_test(tc, test_iv_gen_seq);
  70         tcase_add_test(tc, test_iv_gen_seq_len);
  71         suite_add_tcase(s, tc);
  72
  73         return s;
  74 }