1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2014 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#include "k5-int.h"
#include "common.h"
#include "mglueP.h"
#include "gssapiP_krb5.h"
static const char inputstr[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz123456789";
/* For each test, out1 corresponds to key1 with an empty input, and out2
* corresponds to key2 with the above 61-byte input string. */
static struct {
krb5_enctype enctype;
const char *key1;
const char *out1;
const char *key2;
const char *out2;
} tests[] = {
{ ENCTYPE_DES_CBC_CRC,
"E607FE9DABB57AE0",
"803C4121379FC4B87CE413B67707C4632EBED2C6D6B7"
"2A55E878836E35E21600D915D590DED5B6D77BB30A1F",
"54758316B6257A75",
"279E4105F7ADC9BD6EF28ABE31D89B442FE0058388BA"
"33264ACB5729562DC637950F6BD144B654BE7700B2D6" },
{ ENCTYPE_DES3_CBC_SHA1,
"70378A19CD64134580C27C0115D6B34A1CF2FEECEF9886A2",
"9F8D127C520BB826BFF3E0FE5EF352389C17E0C073D9"
"AC4A333D644D21BA3EF24F4A886D143F85AC9F6377FB",
"3452A167DF1094BA1089E0A20E9E51ABEF1525922558B69E",
"6BF24FABC858F8DD9752E4FCD331BB831F238B5BE190"
"4EEA42E38F7A60C588F075C5C96A67E7F8B7BD0AECF4" },
{ ENCTYPE_ARCFOUR_HMAC,
"3BB3AE288C12B3B9D06B208A4151B3B6",
"9AEA11A3BCF3C53F1F91F5A0BA2132E2501ADF5F3C28"
"3C8A983AB88757CE865A22132D6100EAD63E9E291AFA",
"6DB7B33A01BD2B72F7655CB7B3D5FA0B",
"CDA9A544869FC84873B692663A82AFDA101C8611498B"
"A46138B01E927C9B95EEC953B562807434037837DDDF" },
{ ENCTYPE_AES128_CTS_HMAC_SHA1_96,
"6C742096EB896230312B73972FA28B5D",
"94208D982FC1BB7778128BDD77904420B45C9DA699F3"
"117BCE66E39602128EF0296611A6D191A5828530F20F",
"FA61138C109D834A477D24C7311BE6DA",
"0FAEDF0F842CC834FEE750487E1B622739286B975FE5"
"B7F45AB053143C75CA0DF5D3D4BBB80F6A616C7C9027" },
{ ENCTYPE_AES256_CTS_HMAC_SHA1_96,
"08FCDAFD5832611B73BA7B497FEBFF8C954B4B58031CAD9B977C3B8C25192FD6",
"E627EFC14EF5B6D629F830C7109DEA0D3D7D36E8CD57"
"A1F301C5452494A1928F05AFFBEE3360232209D3BE0D",
"F5B68B7823D8944F33F41541B4E4D38C9B2934F8D16334A796645B066152B4BE",
"112F2B2D878590653CCC7DE278E9F0AA46FA5A380B62"
"59F774CB7C134FCD37F61A50FD0D9F89BF8FE1A6B593" },
{ ENCTYPE_CAMELLIA128_CTS_CMAC,
"866E0466A178279A32AC0BDA92B72AEB",
"97FBB354BF341C3A160DCC86A7A910FDA824601DF677"
"68797BACEEBF5D250AE929DEC9760772084267F50A54",
"D4893FD37DA1A211E12DD1E03E0F03B7",
"1DEE2FF126CA563A2A2326B9DD3F0095013257414C83"
"FAD4398901013D55F367C82681186B7B2FE62F746BA4" },
{ ENCTYPE_CAMELLIA256_CTS_CMAC,
"203071B1AE77BD3D6FCE70174AF95C225B1CED46B35CF52B6479EFEB47E6B063",
"9B30020634C10FDA28420CEE7B96B70A90A771CED43A"
"D8346554163E5949CBAE2FB8EF36AFB6B32CE75116A0",
"A171AD582C1AFBBAD52ABD622EE6B6A14D19BF95C6914B2BA40FFD99A88EC660",
"A47CBB6E104DCC77E4DB48A7A474B977F2FB6A7A1AB6"
"52317D50508AE72B7BE2E4E4BA24164E029CBACF786B" }
};
/* Decode hexstr into out. No length checking. */
static size_t
fromhex(const char *hexstr, unsigned char *out)
{
const char *p;
size_t count;
for (p = hexstr, count = 0; *p != '\0'; p += 2, count++)
sscanf(p, "%2hhx", &out[count]);
return count;
}
int
main(int argc, char *argv[])
{
OM_uint32 minor, major;
gss_ctx_id_t context;
gss_union_ctx_id_desc uctx;
krb5_gss_ctx_id_rec kgctx;
krb5_key k1, k2;
krb5_keyblock kb1, kb2;
gss_buffer_desc in, out;
unsigned char k1buf[32], k2buf[32], outbuf[44];
size_t i;
/*
* Fake up just enough of a krb5 GSS context to make gss_pseudo_random
* work, with chosen subkeys and acceptor subkeys. If we implement
* gss_import_lucid_sec_context, we can rewrite this to use public
* interfaces and stop using private headers and internal knowledge of the
* implementation.
*/
context = (gss_ctx_id_t)&uctx;
memset(&uctx, 0, sizeof(uctx));
uctx.mech_type = &mech_krb5;
uctx.internal_ctx_id = (gss_ctx_id_t)&kgctx;
memset(&kgctx, 0, sizeof(kgctx));
kgctx.k5_context = NULL;
kgctx.established = 1;
kgctx.have_acceptor_subkey = 1;
kb1.contents = k1buf;
kb2.contents = k2buf;
for (i = 0; i < sizeof(tests) / sizeof(*tests); i++) {
/* Set up the keys for this test. */
kb1.enctype = tests[i].enctype;
kb1.length = fromhex(tests[i].key1, k1buf);
check_k5err(NULL, "create_key", krb5_k_create_key(NULL, &kb1, &k1));
kgctx.subkey = k1;
kb2.enctype = tests[i].enctype;
kb2.length = fromhex(tests[i].key2, k2buf);
check_k5err(NULL, "create_key", krb5_k_create_key(NULL, &kb2, &k2));
kgctx.acceptor_subkey = k2;
/* Generate a PRF value with the subkey and an empty input, and compare
* it to the first expected output. */
in.length = 0;
in.value = NULL;
major = gss_pseudo_random(&minor, context, GSS_C_PRF_KEY_PARTIAL, &in,
44, &out);
check_gsserr("gss_pseudo_random", major, minor);
(void)fromhex(tests[i].out1, outbuf);
assert(out.length == 44 && memcmp(out.value, outbuf, 44) == 0);
(void)gss_release_buffer(&minor, &out);
/* Generate a PRF value with the acceptor subkey and the 61-byte input
* string, and compare it to the second expected output. */
in.length = strlen(inputstr);
in.value = (char *)inputstr;
major = gss_pseudo_random(&minor, context, GSS_C_PRF_KEY_FULL, &in, 44,
&out);
check_gsserr("gss_pseudo_random", major, minor);
(void)fromhex(tests[i].out2, outbuf);
assert(out.length == 44 && memcmp(out.value, outbuf, 44) == 0);
(void)gss_release_buffer(&minor, &out);
/* Also check that generating zero bytes of output works. */
major = gss_pseudo_random(&minor, context, GSS_C_PRF_KEY_FULL, &in, 0,
&out);
check_gsserr("gss_pseudo_random", major, minor);
assert(out.length == 0);
(void)gss_release_buffer(&minor, &out);
krb5_k_free_key(NULL, k1);
krb5_k_free_key(NULL, k2);
}
return 0;
}
|