1 /*-
2  * Copyright (c) 2008 Damien Bergamini <damien.bergamini@free.fr>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <string.h>
18 #include <stdio.h>
19 #include <crypto/rijndael.h>
20 #include <crypto/key_wrap.h>
21 
22 void
23 ovbcopy(const void *src, void *dst, size_t len);
24 
25 static void
26 print_hex(const char *str, unsigned char *buf, int len)
27 {
28 	int i;
29 
30 	printf("%s", str);
31 	for (i = 0; i < len; i++) {
32 		if ((i % 8) == 0)
33 			printf(" ");
34 		printf("%02X", buf[i]);
35 	}
36 	printf("\n");
37 }
38 
39 void
40 ovbcopy(const void *src, void *dst, size_t len)
41 {
42 	/* userspace does not have ovbcopy: fake it */
43 	memmove(dst, src, len);
44 }
45 
46 static void
47 do_test(u_int kek_len, u_int data_len)
48 {
49 	aes_key_wrap_ctx ctx;
50 	u_int8_t kek[32], data[32];
51 	u_int8_t output[64];
52 	u_int i;
53 
54 	for (i = 0; i < kek_len; i++)
55 		kek[i] = i;
56 	printf("Input:\n");
57 	print_hex("KEK:\n  ", kek, kek_len);
58 	for (i = 0; i < 16; i++)
59 		data[i] = i * 16 + i;
60 	for (; i < data_len; i++)
61 		data[i] = i - 16;
62 	print_hex("Key Data:\n  ", data, data_len);
63 	aes_key_wrap_set_key(&ctx, kek, kek_len);
64 	aes_key_wrap(&ctx, data, data_len / 8, output);
65 	print_hex("Ciphertext:\n  ", output, data_len + 8);
66 	aes_key_unwrap(&ctx, output, output, data_len / 8);
67 	printf("Output:\n");
68 	print_hex("Key Data:\n  ", output, data_len);
69 	printf("====\n");
70 }
71 
72 int
73 main(void)
74 {
75 	do_test(16, 16);
76 	do_test(24, 16);
77 	do_test(32, 16);
78 	do_test(24, 24);
79 	do_test(32, 24);
80 	do_test(32, 32);
81 
82 	return 0;
83 }
84 
85 void
86 explicit_bzero(void *b, size_t len)
87 {
88 	bzero(b, len);
89 }
90