test/casttest.c

   1 /*
   2  * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 /*
  11  * CAST low level APIs are deprecated for public use, but still ok for
  12  * internal use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include <stdio.h>
  17 #include <string.h>
  18 #include <stdlib.h>
  19
  20 #include <openssl/opensslconf.h> /* To see if OPENSSL_NO_CAST is defined */
  21 #include "internal/nelem.h"
  22 #include "testutil.h"
  23
  24 #ifndef OPENSSL_NO_CAST
  25 # include <openssl/cast.h>
  26
  27 static unsigned char k[16] = {
  28     0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78,
  29     0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A
  30 };
  31
  32 static unsigned char in[8] =
  33     { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF };
  34
  35 static int k_len[3] = { 16, 10, 5 };
  36
  37 static unsigned char c[3][8] = {
  38     {0x23, 0x8B, 0x4F, 0xE5, 0x84, 0x7E, 0x44, 0xB2},
  39     {0xEB, 0x6A, 0x71, 0x1A, 0x2C, 0x02, 0x27, 0x1B},
  40     {0x7A, 0xC8, 0x16, 0xD1, 0x6E, 0x9B, 0x30, 0x2E},
  41 };
  42
  43 static unsigned char in_a[16] = {
  44     0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78,
  45     0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A
  46 };
  47
  48 static unsigned char in_b[16] = {
  49     0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78,
  50     0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A
  51 };
  52
  53 static unsigned char c_a[16] = {
  54     0xEE, 0xA9, 0xD0, 0xA2, 0x49, 0xFD, 0x3B, 0xA6,
  55     0xB3, 0x43, 0x6F, 0xB8, 0x9D, 0x6D, 0xCA, 0x92
  56 };
  57
  58 static unsigned char c_b[16] = {
  59     0xB2, 0xC9, 0x5E, 0xB0, 0x0C, 0x31, 0xAD, 0x71,
  60     0x80, 0xAC, 0x05, 0xB8, 0xE8, 0x3D, 0x69, 0x6E
  61 };
  62
  63 static int cast_test_vector(int z)
  64 {
  65     int testresult = 1;
  66     CAST_KEY key;
  67     unsigned char out[80];
  68
  69     CAST_set_key(&key, k_len[z], k);
  70     CAST_ecb_encrypt(in, out, &key, CAST_ENCRYPT);
  71     if (!TEST_mem_eq(out, sizeof(c[z]), c[z], sizeof(c[z]))) {
  72         TEST_info("CAST_ENCRYPT iteration %d failed (len=%d)", z, k_len[z]);
  73         testresult = 0;
  74     }
  75
  76     CAST_ecb_encrypt(out, out, &key, CAST_DECRYPT);
  77     if (!TEST_mem_eq(out, sizeof(in), in, sizeof(in))) {
  78         TEST_info("CAST_DECRYPT iteration %d failed (len=%d)", z, k_len[z]);
  79         testresult = 0;
  80     }
  81     return testresult;
  82 }
  83
  84 static int cast_test_iterations(void)
  85 {
  86     long l;
  87     int testresult = 1;
  88     CAST_KEY key, key_b;
  89     unsigned char out_a[16], out_b[16];
  90
  91     memcpy(out_a, in_a, sizeof(in_a));
  92     memcpy(out_b, in_b, sizeof(in_b));
  93
  94     for (l = 0; l < 1000000L; l++) {
  95         CAST_set_key(&key_b, 16, out_b);
  96         CAST_ecb_encrypt(&(out_a[0]), &(out_a[0]), &key_b, CAST_ENCRYPT);
  97         CAST_ecb_encrypt(&(out_a[8]), &(out_a[8]), &key_b, CAST_ENCRYPT);
  98         CAST_set_key(&key, 16, out_a);
  99         CAST_ecb_encrypt(&(out_b[0]), &(out_b[0]), &key, CAST_ENCRYPT);
 100         CAST_ecb_encrypt(&(out_b[8]), &(out_b[8]), &key, CAST_ENCRYPT);
 101     }
 102
 103     if (!TEST_mem_eq(out_a, sizeof(c_a), c_a, sizeof(c_a))
 104             || !TEST_mem_eq(out_b, sizeof(c_b), c_b, sizeof(c_b)))
 105         testresult = 0;
 106
 107     return testresult;
 108 }
 109 #endif
 110
 111 int setup_tests(void)
 112 {
 113 #ifndef OPENSSL_NO_CAST
 114     ADD_ALL_TESTS(cast_test_vector, OSSL_NELEM(k_len));
 115     ADD_TEST(cast_test_iterations);
 116 #endif
 117     return 1;
 118 }