lib/krb5/test_prf.c

   1 /*
   2  * Copyright (c) 2007 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of KTH nor the names of its contributors may be
  18  *    used to endorse or promote products derived from this software without
  19  *    specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include "krb5_locl.h"
  35
  36 #include <hex.h>
  37 #include <err.h>
  38
  39 /*
  40  * key: string2key(aes256, "testkey", "testkey", default_params)
  41  * input: unhex(1122334455667788)
  42  * output: 58b594b8a61df6e9439b7baa991ff5c1
  43  *
  44  * key: string2key(aes128, "testkey", "testkey", default_params)
  45  * input: unhex(1122334455667788)
  46  * output: ffa2f823aa7f83a8ce3c5fb730587129
  47  */
  48
  49 int
  50 main(int argc, char **argv)
  51 {
  52     krb5_context context;
  53     krb5_error_code ret;
  54     krb5_keyblock key;
  55     krb5_crypto crypto;
  56     size_t length;
  57     krb5_data input, output, output2;
  58     krb5_enctype etype = ETYPE_AES256_CTS_HMAC_SHA1_96;
  59
  60     ret = krb5_init_context(&context);
  61     if (ret)
  62         errx(1, "krb5_init_context %d", ret);
  63
  64     ret = krb5_generate_random_keyblock(context, etype, &key);
  65     if (ret)
  66         krb5_err(context, 1, ret, "krb5_generate_random_keyblock");
  67
  68     ret = krb5_crypto_prf_length(context, etype, &length);
  69     if (ret)
  70         krb5_err(context, 1, ret, "krb5_crypto_prf_length");
  71
  72     ret = krb5_crypto_init(context, &key, 0, &crypto);
  73     if (ret)
  74         krb5_err(context, 1, ret, "krb5_crypto_init");
  75
  76     input.data = rk_UNCONST("foo");
  77     input.length = 3;
  78
  79     ret = krb5_crypto_prf(context, crypto, &input, &output);
  80     if (ret)
  81         krb5_err(context, 1, ret, "krb5_crypto_prf");
  82
  83     ret = krb5_crypto_prf(context, crypto, &input, &output2);
  84     if (ret)
  85         krb5_err(context, 1, ret, "krb5_crypto_prf");
  86
  87     if (krb5_data_cmp(&output, &output2) != 0)
  88         krb5_errx(context, 1, "krb5_data_cmp");
  89
  90     krb5_data_free(&output);
  91     krb5_data_free(&output2);
  92
  93     krb5_crypto_destroy(context, crypto);
  94
  95     krb5_free_keyblock_contents(context, &key);
  96
  97     krb5_free_context(context);
  98
  99     return 0;
 100 }