IBR-DTNSuite  0.12
gcm_aes.c
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1 /*
2  ---------------------------------------------------------------------------
3  Copyright (c) 1998-2006, Brian Gladman, Worcester, UK. All rights reserved.
4 
5  LICENSE TERMS
6 
7  The free distribution and use of this software in both source and binary
8  form is allowed (with or without changes) provided that:
9 
10  1. distributions of this source code include the above copyright
11  notice, this list of conditions and the following disclaimer;
12 
13  2. distributions in binary form include the above copyright
14  notice, this list of conditions and the following disclaimer
15  in the documentation and/or other associated materials;
16 
17  3. the copyright holder's name is not used to endorse products
18  built using this software without specific written permission.
19 
20  ALTERNATIVELY, provided that this notice is retained in full, this product
21  may be distributed under the terms of the GNU General Public License (GPL),
22  in which case the provisions of the GPL apply INSTEAD OF those given above.
23 
24  DISCLAIMER
25 
26  This software is provided 'as is' with no explicit or implied warranties
27  in respect of its properties, including, but not limited to, correctness
28  and/or fitness for purpose.
29  ---------------------------------------------------------------------------
30  Issue 16/04/2007
31 */
32 
33 /* This file changed 5 June 2007, extracted from "aeskey.c", extracting
34  only those portions needed to use gcm-mode in an OpenSSL environment.
35  Changed by Peter Lovell, SPARTA Inc., for DTN project.
36 */
37 
38 //#ifdef HAVE_CONFIG_H
39 //# include <dtn-config.h>
40 //#endif
41 #define BSP_ENABLED true
42 
43 #ifdef BSP_ENABLED
44 
45 #include "gcm_aes.h"
46 
47 #if defined(__cplusplus)
48 extern "C"
49 {
50 #endif
51 
52 
53 AES_RETURN aes_encrypt_key(const unsigned char *key, int key_len, aes_encrypt_ctx* cx)
54 {
55  if ( key_len < 128 )
56  key_len *= 8; /* convert byte-count to bit-count */
57 
58  AES_set_encrypt_key(key, key_len, cx);
59  return;
60 }
61 
62 
63 #if defined(__cplusplus)
64 }
65 #endif
66 
67 #endif /* BSP_ENABLED */