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 RCSID("$Id$");
  37
  38 #include <hex.h>
  39 #include <err.h>
  40
  41 /*
  42  * key: string2key(aes256, "testkey", "testkey", default_params)
  43  * input: unhex(1122334455667788)
  44  * output: 58b594b8a61df6e9439b7baa991ff5c1
  45  *
  46  * key: string2key(aes128, "testkey", "testkey", default_params)
  47  * input: unhex(1122334455667788)
  48  * output: ffa2f823aa7f83a8ce3c5fb730587129
  49  */
  50
  51 int
  52 main(int argc, char **argv)
  53 {
  54     krb5_context context;
  55     krb5_error_code ret;
  56     krb5_keyblock key;
  57     krb5_crypto crypto;
  58     size_t length;
  59     krb5_data input, output, output2;
  60     krb5_enctype etype = ETYPE_AES256_CTS_HMAC_SHA1_96;
  61
  62     ret = krb5_init_context(&context);
  63     if (ret)
  64         errx(1, "krb5_init_context %d", ret);
  65
  66     ret = krb5_generate_random_keyblock(context, etype, &key);
  67     if (ret)
  68         krb5_err(context, 1, ret, "krb5_generate_random_keyblock");
  69
  70     ret = krb5_crypto_prf_length(context, etype, &length);
  71     if (ret)
  72         krb5_err(context, 1, ret, "krb5_crypto_prf_length");
  73
  74     ret = krb5_crypto_init(context, &key, 0, &crypto);
  75     if (ret)
  76         krb5_err(context, 1, ret, "krb5_crypto_init");
  77
  78     input.data = rk_UNCONST("foo");
  79     input.length = 3;
  80
  81     ret = krb5_crypto_prf(context, crypto, &input, &output);
  82     if (ret)
  83         krb5_err(context, 1, ret, "krb5_crypto_prf");
  84
  85     ret = krb5_crypto_prf(context, crypto, &input, &output2);
  86     if (ret)
  87         krb5_err(context, 1, ret, "krb5_crypto_prf");
  88
  89     if (krb5_data_cmp(&output, &output2) != 0)
  90         krb5_errx(context, 1, "krb5_data_cmp");
  91
  92     krb5_data_free(&output);
  93     krb5_data_free(&output2);
  94
  95     krb5_crypto_destroy(context, crypto);
  96
  97     krb5_free_keyblock_contents(context, &key);
  98
  99     krb5_free_context(context);
 100
 101     return 0;
 102 }