/*  test_hmac.c - TinyCrypt implementation of some HMAC tests */

/*
 *  Copyright (C) 2015 by Intel Corporation, All Rights Reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *    - Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *
 *    - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 *    - Neither the name of Intel Corporation nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 *  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 *  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  test_hmac.c -- Implementation of some HMAC tests
 *                   (including RFC 4231 HMAC-SHA256 test vectors).
 */
#include "hmac.h"
#include "sha256.h"

#include "test_utils.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>

void do_hmac_test (
    HmacState_t h,
    uint32_t testnum,
    const uint8_t *data, size_t datalen,
    const uint8_t *expected, size_t expectedlen) {
  uint8_t digest[32];

  (void) hmac_init (h);
  (void) hmac_update (h, data, datalen);
  (void) hmac_final (digest, SHA256_DIGEST_SIZE, h);

  check_result(testnum, expected, expectedlen, digest, sizeof(digest), 1);
}

void test_1 (void) {
  printf("\tPerforming HMAC test #1...");
  const uint8_t key[20] = {
      0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
      0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b
  };
  const uint8_t data[8] = {
      0x48, 0x69, 0x20, 0x54, 0x68, 0x65, 0x72, 0x65
  };
  const uint8_t expected[32] = {
      0xb0, 0x34, 0x4c, 0x61, 0xd8, 0xdb, 0x38, 0x53, 0x5c, 0xa8, 0xaf, 0xce,
      0xaf, 0x0b, 0xf1, 0x2b, 0x88, 0x1d, 0xc2, 0x00, 0xc9, 0x83, 0x3d, 0xa7,
      0x26, 0xe9, 0x37, 0x6c, 0x2e, 0x32, 0xcf, 0xf7
  };
  struct hmac_state_struct h;

  (void) memset (&h, 0x00, sizeof (h));
  (void) hmac_set_key (&h, key, sizeof (key));

  do_hmac_test (&h, 1, data, sizeof (data), expected, sizeof(expected));
}

void test_2 (void) {
  printf("\tPerforming HMAC test #2...");
  const uint8_t key[4] = {
      0x4a, 0x65, 0x66, 0x65
  };
  const uint8_t data[28] = {
      0x77, 0x68, 0x61, 0x74, 0x20, 0x64, 0x6f, 0x20, 0x79, 0x61, 0x20, 0x77,
      0x61, 0x6e, 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x6e, 0x6f, 0x74, 0x68,
      0x69, 0x6e, 0x67, 0x3f
  };
  const uint8_t expected[32] = {
      0x5b, 0xdc, 0xc1, 0x46, 0xbf, 0x60, 0x75, 0x4e, 0x6a, 0x04, 0x24, 0x26,
      0x08, 0x95, 0x75, 0xc7, 0x5a, 0x00, 0x3f, 0x08, 0x9d, 0x27, 0x39, 0x83,
      0x9d, 0xec, 0x58, 0xb9, 0x64, 0xec, 0x38, 0x43
  };
  struct hmac_state_struct h;

  (void) memset (&h, 0x00, sizeof (h));
  (void) hmac_set_key (&h, key, sizeof (key));

  do_hmac_test (&h, 2, data, sizeof (data), expected, sizeof(expected));
}

void test_3 (void) {
  printf("\tPerforming HMAC test #3...");
  const uint8_t key[20] = {
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa
  };
  const uint8_t data[50] = {
      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
      0xdd, 0xdd
  };
  const uint8_t expected[32] = {
      0x77, 0x3e, 0xa9, 0x1e, 0x36, 0x80, 0x0e, 0x46, 0x85, 0x4d, 0xb8, 0xeb,
      0xd0, 0x91, 0x81, 0xa7, 0x29, 0x59, 0x09, 0x8b, 0x3e, 0xf8, 0xc1, 0x22,
      0xd9, 0x63, 0x55, 0x14, 0xce, 0xd5, 0x65, 0xfe
  };
  struct hmac_state_struct h;

  (void) memset (&h, 0x00, sizeof (h));
  (void) hmac_set_key (&h, key, sizeof (key));

  do_hmac_test (&h, 3, data, sizeof (data), expected, sizeof(expected));
}

void test_4 (void) {
  printf("\tPerforming HMAC test #4...");
  const uint8_t key[25] = {
      0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c,
      0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
      0x19
  };
  const uint8_t data[50] = {
      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
      0xcd, 0xcd
  };
  const uint8_t expected[32] = {
      0x82, 0x55, 0x8a, 0x38, 0x9a, 0x44, 0x3c, 0x0e, 0xa4, 0xcc, 0x81, 0x98,
      0x99, 0xf2, 0x08, 0x3a, 0x85, 0xf0, 0xfa, 0xa3, 0xe5, 0x78, 0xf8, 0x07,
      0x7a, 0x2e, 0x3f, 0xf4, 0x67, 0x29, 0x66, 0x5b
  };
  struct hmac_state_struct h;

  (void) memset (&h, 0x00, sizeof (h));
  (void) hmac_set_key (&h, key, sizeof (key));

  do_hmac_test (&h, 4, data, sizeof (data), expected, sizeof(expected));
}

void test_5 (void) {
  printf("\tPerforming HMAC test #5...");
  const uint8_t key[20] = {
      0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
      0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c
  };
  const uint8_t data[20] = {
      0x54, 0x65, 0x73, 0x74, 0x20, 0x57, 0x69, 0x74, 0x68, 0x20, 0x54, 0x72,
      0x75, 0x6e, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e
  };
  const uint8_t expected[32] = {
      0xa3, 0xb6, 0x16, 0x74, 0x73, 0x10, 0x0e, 0xe0, 0x6e, 0x0c, 0x79, 0x6c,
      0x29, 0x55, 0x55, 0x2b, 0xfa, 0x6f, 0x7c, 0x0a, 0x6a, 0x8a, 0xef, 0x8b,
      0x93, 0xf8, 0x60, 0xaa, 0xb0, 0xcd, 0x20, 0xc5
  };
  struct hmac_state_struct h;

  (void) memset (&h, 0x00, sizeof (h));
  (void) hmac_set_key (&h, key, sizeof (key));

  do_hmac_test (&h, 5, data, sizeof (data), expected, sizeof(expected));
}

void test_6 (void) {
  printf("\tPerforming HMAC test #6...");
  const uint8_t key[131] = {
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa
  };
  const uint8_t data[54] = {
      0x54, 0x65, 0x73, 0x74, 0x20, 0x55, 0x73, 0x69, 0x6e, 0x67, 0x20, 0x4c,
      0x61, 0x72, 0x67, 0x65, 0x72, 0x20, 0x54, 0x68, 0x61, 0x6e, 0x20, 0x42,
      0x6c, 0x6f, 0x63, 0x6b, 0x2d, 0x53, 0x69, 0x7a, 0x65, 0x20, 0x4b, 0x65,
      0x79, 0x20, 0x2d, 0x20, 0x48, 0x61, 0x73, 0x68, 0x20, 0x4b, 0x65, 0x79,
      0x20, 0x46, 0x69, 0x72, 0x73, 0x74
  };
  const uint8_t expected[32] = {
      0x60, 0xe4, 0x31, 0x59, 0x1e, 0xe0, 0xb6, 0x7f, 0x0d, 0x8a, 0x26, 0xaa,
      0xcb, 0xf5, 0xb7, 0x7f, 0x8e, 0x0b, 0xc6, 0x21, 0x37, 0x28, 0xc5, 0x14,
      0x05, 0x46, 0x04, 0x0f, 0x0e, 0xe3, 0x7f, 0x54
  };
  struct hmac_state_struct h;

  (void) memset (&h, 0x00, sizeof (h));
  (void) hmac_set_key (&h, key, sizeof (key));

  do_hmac_test (&h, 6, data, sizeof (data), expected, sizeof(expected));
}

void test_7 (void) {
  printf ("\tPerforming HMAC test #7...");
  const uint8_t key[131] = {
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa
  };
  const uint8_t data[152] = {
      0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x74, 0x65,
      0x73, 0x74, 0x20, 0x75, 0x73, 0x69, 0x6e, 0x67, 0x20, 0x61, 0x20, 0x6c,
      0x61, 0x72, 0x67, 0x65, 0x72, 0x20, 0x74, 0x68, 0x61, 0x6e, 0x20, 0x62,
      0x6c, 0x6f, 0x63, 0x6b, 0x2d, 0x73, 0x69, 0x7a, 0x65, 0x20, 0x6b, 0x65,
      0x79, 0x20, 0x61, 0x6e, 0x64, 0x20, 0x61, 0x20, 0x6c, 0x61, 0x72, 0x67,
      0x65, 0x72, 0x20, 0x74, 0x68, 0x61, 0x6e, 0x20, 0x62, 0x6c, 0x6f, 0x63,
      0x6b, 0x2d, 0x73, 0x69, 0x7a, 0x65, 0x20, 0x64, 0x61, 0x74, 0x61, 0x2e,
      0x20, 0x54, 0x68, 0x65, 0x20, 0x6b, 0x65, 0x79, 0x20, 0x6e, 0x65, 0x65,
      0x64, 0x73, 0x20, 0x74, 0x6f, 0x20, 0x62, 0x65, 0x20, 0x68, 0x61, 0x73,
      0x68, 0x65, 0x64, 0x20, 0x62, 0x65, 0x66, 0x6f, 0x72, 0x65, 0x20, 0x62,
      0x65, 0x69, 0x6e, 0x67, 0x20, 0x75, 0x73, 0x65, 0x64, 0x20, 0x62, 0x79,
      0x20, 0x74, 0x68, 0x65, 0x20, 0x48, 0x4d, 0x41, 0x43, 0x20, 0x61, 0x6c,
      0x67, 0x6f, 0x72, 0x69, 0x74, 0x68, 0x6d, 0x2e
  };
  const uint8_t expected[32] = {
      0x9b, 0x09, 0xff, 0xa7, 0x1b, 0x94, 0x2f, 0xcb, 0x27, 0x63, 0x5f, 0xbc,
      0xd5, 0xb0, 0xe9, 0x44, 0xbf, 0xdc, 0x63, 0x64, 0x4f, 0x07, 0x13, 0x93,
      0x8a, 0x7f, 0x51, 0x53, 0x5c, 0x3a, 0x35, 0xe2
  };
  struct hmac_state_struct h;

  (void) memset (&h, 0x00, sizeof (h));
  (void) hmac_set_key (&h, key, sizeof (key));

  do_hmac_test (&h, 7, data, sizeof (data), expected, sizeof(expected));
}

int32_t main (void) {

  setbuf(stdout, NULL);
  printf ("Performing HMAC tests (RFC4231 test vectors)...\n");
  test_1 ();
  test_2 ();
  test_3 ();
  test_4 ();
  test_5 ();
  test_6 ();
  test_7 ();
  printf ("All HMAC tests succeeded!\n\n");

  return 0;
}