2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5 * Authors: Doug Rabson <dfr@rabson.org>
6 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
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.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
35 #include <sys/malloc.h>
36 #include <sys/mutex.h>
39 #include <crypto/des/des.h>
40 #include <opencrypto/cryptodev.h>
42 #include <kgssapi/gssapi.h>
43 #include <kgssapi/gssapi_impl.h>
47 #define DES3_FLAGS (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)
51 crypto_session_t ds_session;
55 des3_init(struct krb5_key_state *ks)
57 static struct timeval lastwarn;
58 struct des3_state *ds;
60 ds = malloc(sizeof(struct des3_state), M_GSSAPI, M_WAITOK|M_ZERO);
61 mtx_init(&ds->ds_lock, "gss des3 lock", NULL, MTX_DEF);
63 if (ratecheck(&lastwarn, &krb5_warn_interval))
64 gone_in(13, "DES3 cipher for Kerberos GSS");
68 des3_destroy(struct krb5_key_state *ks)
70 struct des3_state *ds = ks->ks_priv;
73 crypto_freesession(ds->ds_session);
74 mtx_destroy(&ds->ds_lock);
75 free(ks->ks_priv, M_GSSAPI);
79 des3_set_key(struct krb5_key_state *ks, const void *in)
81 void *kp = ks->ks_key;
82 struct des3_state *ds = ks->ks_priv;
83 struct cryptoini cri[2];
86 bcopy(in, kp, ks->ks_class->ec_keylen);
89 crypto_freesession(ds->ds_session);
91 bzero(cri, sizeof(cri));
93 cri[0].cri_alg = CRYPTO_SHA1_HMAC;
94 cri[0].cri_klen = 192;
96 cri[0].cri_key = ks->ks_key;
97 cri[0].cri_next = &cri[1];
99 cri[1].cri_alg = CRYPTO_3DES_CBC;
100 cri[1].cri_klen = 192;
102 cri[1].cri_key = ks->ks_key;
103 cri[1].cri_next = NULL;
105 crypto_newsession(&ds->ds_session, cri,
106 CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE);
110 des3_random_to_key(struct krb5_key_state *ks, const void *in)
113 const uint8_t *inkey;
116 for (subkey = 0, outkey = ks->ks_key, inkey = in; subkey < 3;
117 subkey++, outkey += 8, inkey += 7) {
119 * Expand 56 bits of random data to 64 bits as follows
120 * (in the example, bit number 1 is the MSB of the 56
121 * bits of random data):
125 * 9 10 11 12 13 14 15 p
126 * 17 18 19 20 21 22 23 p
127 * 25 26 27 28 29 30 31 p
128 * 33 34 35 36 37 38 39 p
129 * 41 42 43 44 45 46 47 p
130 * 49 50 51 52 53 54 55 p
131 * 56 48 40 32 24 16 8 p
133 outkey[0] = inkey[0];
134 outkey[1] = inkey[1];
135 outkey[2] = inkey[2];
136 outkey[3] = inkey[3];
137 outkey[4] = inkey[4];
138 outkey[5] = inkey[5];
139 outkey[6] = inkey[6];
140 outkey[7] = (((inkey[0] & 1) << 1)
141 | ((inkey[1] & 1) << 2)
142 | ((inkey[2] & 1) << 3)
143 | ((inkey[3] & 1) << 4)
144 | ((inkey[4] & 1) << 5)
145 | ((inkey[5] & 1) << 6)
146 | ((inkey[6] & 1) << 7));
147 des_set_odd_parity(outkey);
148 if (des_is_weak_key(outkey))
152 des3_set_key(ks, ks->ks_key);
156 des3_crypto_cb(struct cryptop *crp)
159 struct des3_state *ds = (struct des3_state *) crp->crp_opaque;
161 if (crypto_ses2caps(ds->ds_session) & CRYPTOCAP_F_SYNC)
164 error = crp->crp_etype;
166 error = crypto_dispatch(crp);
167 mtx_lock(&ds->ds_lock);
168 if (error || (crp->crp_flags & CRYPTO_F_DONE))
170 mtx_unlock(&ds->ds_lock);
176 des3_encrypt_1(const struct krb5_key_state *ks, struct mbuf *inout,
177 size_t skip, size_t len, void *ivec, int encdec)
179 struct des3_state *ds = ks->ks_priv;
181 struct cryptodesc *crd;
184 crp = crypto_getreq(1);
187 crd->crd_skip = skip;
189 crd->crd_flags = CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT | encdec;
191 bcopy(ivec, crd->crd_iv, 8);
193 bzero(crd->crd_iv, 8);
195 crd->crd_next = NULL;
196 crd->crd_alg = CRYPTO_3DES_CBC;
198 crp->crp_session = ds->ds_session;
199 crp->crp_flags = CRYPTO_F_IMBUF | CRYPTO_F_CBIFSYNC;
200 crp->crp_buf = (void *) inout;
201 crp->crp_opaque = (void *) ds;
202 crp->crp_callback = des3_crypto_cb;
204 error = crypto_dispatch(crp);
206 if ((crypto_ses2caps(ds->ds_session) & CRYPTOCAP_F_SYNC) == 0) {
207 mtx_lock(&ds->ds_lock);
208 if (!error && !(crp->crp_flags & CRYPTO_F_DONE))
209 error = msleep(crp, &ds->ds_lock, 0, "gssdes3", 0);
210 mtx_unlock(&ds->ds_lock);
217 des3_encrypt(const struct krb5_key_state *ks, struct mbuf *inout,
218 size_t skip, size_t len, void *ivec, size_t ivlen)
221 des3_encrypt_1(ks, inout, skip, len, ivec, CRD_F_ENCRYPT);
225 des3_decrypt(const struct krb5_key_state *ks, struct mbuf *inout,
226 size_t skip, size_t len, void *ivec, size_t ivlen)
229 des3_encrypt_1(ks, inout, skip, len, ivec, 0);
233 des3_checksum(const struct krb5_key_state *ks, int usage,
234 struct mbuf *inout, size_t skip, size_t inlen, size_t outlen)
236 struct des3_state *ds = ks->ks_priv;
238 struct cryptodesc *crd;
241 crp = crypto_getreq(1);
244 crd->crd_skip = skip;
245 crd->crd_len = inlen;
246 crd->crd_inject = skip + inlen;
248 crd->crd_next = NULL;
249 crd->crd_alg = CRYPTO_SHA1_HMAC;
251 crp->crp_session = ds->ds_session;
252 crp->crp_ilen = inlen;
255 crp->crp_flags = CRYPTO_F_IMBUF | CRYPTO_F_CBIFSYNC;
256 crp->crp_buf = (void *) inout;
257 crp->crp_opaque = (void *) ds;
258 crp->crp_callback = des3_crypto_cb;
260 error = crypto_dispatch(crp);
262 if ((crypto_ses2caps(ds->ds_session) & CRYPTOCAP_F_SYNC) == 0) {
263 mtx_lock(&ds->ds_lock);
264 if (!error && !(crp->crp_flags & CRYPTO_F_DONE))
265 error = msleep(crp, &ds->ds_lock, 0, "gssdes3", 0);
266 mtx_unlock(&ds->ds_lock);
272 struct krb5_encryption_class krb5_des3_encryption_class = {
273 "des3-cbc-sha1", /* name */
274 ETYPE_DES3_CBC_SHA1, /* etype */
275 EC_DERIVED_KEYS, /* flags */
278 20, /* checksumlen */
291 struct des3_dk_test {
297 struct des3_dk_test tests[] = {
298 {{0xdc, 0xe0, 0x6b, 0x1f, 0x64, 0xc8, 0x57, 0xa1, 0x1c, 0x3d, 0xb5,
299 0x7c, 0x51, 0x89, 0x9b, 0x2c, 0xc1, 0x79, 0x10, 0x08, 0xce, 0x97,
301 {0x00, 0x00, 0x00, 0x01, 0x55}, 5,
302 {0x92, 0x51, 0x79, 0xd0, 0x45, 0x91, 0xa7, 0x9b, 0x5d, 0x31, 0x92,
303 0xc4, 0xa7, 0xe9, 0xc2, 0x89, 0xb0, 0x49, 0xc7, 0x1f, 0x6e, 0xe6,
306 {{0x5e, 0x13, 0xd3, 0x1c, 0x70, 0xef, 0x76, 0x57, 0x46, 0x57, 0x85,
307 0x31, 0xcb, 0x51, 0xc1, 0x5b, 0xf1, 0x1c, 0xa8, 0x2c, 0x97, 0xce,
309 {0x00, 0x00, 0x00, 0x01, 0xaa}, 5,
310 {0x9e, 0x58, 0xe5, 0xa1, 0x46, 0xd9, 0x94, 0x2a, 0x10, 0x1c, 0x46,
311 0x98, 0x45, 0xd6, 0x7a, 0x20, 0xe3, 0xc4, 0x25, 0x9e, 0xd9, 0x13,
314 {{0x98, 0xe6, 0xfd, 0x8a, 0x04, 0xa4, 0xb6, 0x85, 0x9b, 0x75, 0xa1,
315 0x76, 0x54, 0x0b, 0x97, 0x52, 0xba, 0xd3, 0xec, 0xd6, 0x10, 0xa2,
317 {0x00, 0x00, 0x00, 0x01, 0x55}, 5,
318 {0x13, 0xfe, 0xf8, 0x0d, 0x76, 0x3e, 0x94, 0xec, 0x6d, 0x13, 0xfd,
319 0x2c, 0xa1, 0xd0, 0x85, 0x07, 0x02, 0x49, 0xda, 0xd3, 0x98, 0x08,
322 {{0x62, 0x2a, 0xec, 0x25, 0xa2, 0xfe, 0x2c, 0xad, 0x70, 0x94, 0x68,
323 0x0b, 0x7c, 0x64, 0x94, 0x02, 0x80, 0x08, 0x4c, 0x1a, 0x7c, 0xec,
325 {0x00, 0x00, 0x00, 0x01, 0xaa}, 5,
326 {0xf8, 0xdf, 0xbf, 0x04, 0xb0, 0x97, 0xe6, 0xd9, 0xdc, 0x07, 0x02,
327 0x68, 0x6b, 0xcb, 0x34, 0x89, 0xd9, 0x1f, 0xd9, 0xa4, 0x51, 0x6b,
330 {{0xd3, 0xf8, 0x29, 0x8c, 0xcb, 0x16, 0x64, 0x38, 0xdc, 0xb9, 0xb9,
331 0x3e, 0xe5, 0xa7, 0x62, 0x92, 0x86, 0xa4, 0x91, 0xf8, 0x38, 0xf8,
333 {0x6b, 0x65, 0x72, 0x62, 0x65, 0x72, 0x6f, 0x73}, 8,
334 {0x23, 0x70, 0xda, 0x57, 0x5d, 0x2a, 0x3d, 0xa8, 0x64, 0xce, 0xbf,
335 0xdc, 0x52, 0x04, 0xd5, 0x6d, 0xf7, 0x79, 0xa7, 0xdf, 0x43, 0xd9,
338 {{0xc1, 0x08, 0x16, 0x49, 0xad, 0xa7, 0x43, 0x62, 0xe6, 0xa1, 0x45,
339 0x9d, 0x01, 0xdf, 0xd3, 0x0d, 0x67, 0xc2, 0x23, 0x4c, 0x94, 0x07,
341 {0x00, 0x00, 0x00, 0x01, 0x55}, 5,
342 {0x34, 0x80, 0x57, 0xec, 0x98, 0xfd, 0xc4, 0x80, 0x16, 0x16, 0x1c,
343 0x2a, 0x4c, 0x7a, 0x94, 0x3e, 0x92, 0xae, 0x49, 0x2c, 0x98, 0x91,
346 {{0x5d, 0x15, 0x4a, 0xf2, 0x38, 0xf4, 0x67, 0x13, 0x15, 0x57, 0x19,
347 0xd5, 0x5e, 0x2f, 0x1f, 0x79, 0x0d, 0xd6, 0x61, 0xf2, 0x79, 0xa7,
349 {0x00, 0x00, 0x00, 0x01, 0xaa}, 5,
350 {0xa8, 0x80, 0x8a, 0xc2, 0x67, 0xda, 0xda, 0x3d, 0xcb, 0xe9, 0xa7,
351 0xc8, 0x46, 0x26, 0xfb, 0xc7, 0x61, 0xc2, 0x94, 0xb0, 0x13, 0x15,
354 {{0x79, 0x85, 0x62, 0xe0, 0x49, 0x85, 0x2f, 0x57, 0xdc, 0x8c, 0x34,
355 0x3b, 0xa1, 0x7f, 0x2c, 0xa1, 0xd9, 0x73, 0x94, 0xef, 0xc8, 0xad,
357 {0x00, 0x00, 0x00, 0x01, 0x55}, 5,
358 {0xc8, 0x13, 0xf8, 0x8a, 0x3b, 0xe3, 0xb3, 0x34, 0xf7, 0x54, 0x25,
359 0xce, 0x91, 0x75, 0xfb, 0xe3, 0xc8, 0x49, 0x3b, 0x89, 0xc8, 0x70,
362 {{0x26, 0xdc, 0xe3, 0x34, 0xb5, 0x45, 0x29, 0x2f, 0x2f, 0xea, 0xb9,
363 0xa8, 0x70, 0x1a, 0x89, 0xa4, 0xb9, 0x9e, 0xb9, 0x94, 0x2c, 0xec,
365 {0x00, 0x00, 0x00, 0x01, 0xaa}, 5,
366 {0xf4, 0x8f, 0xfd, 0x6e, 0x83, 0xf8, 0x3e, 0x73, 0x54, 0xe6, 0x94,
367 0xfd, 0x25, 0x2c, 0xf8, 0x3b, 0xfe, 0x58, 0xf7, 0xd5, 0xba, 0x37,
370 #define N_TESTS (sizeof(tests) / sizeof(tests[0]))
373 main(int argc, char **argv)
375 struct krb5_key_state *key, *dk;
379 for (j = 0; j < N_TESTS; j++) {
380 struct des3_dk_test *t = &tests[j];
381 key = krb5_create_key(&des3_encryption_class);
382 krb5_set_key(key, t->key);
383 dk = krb5_derive_key(key, t->usage, t->usagelen);
385 if (memcmp(dk->ks_key, t->dk, 24)) {
387 for (i = 0; i < 24; i++)
388 printf("%02x", t->key[i]);
390 for (i = 0; i < t->usagelen; i++)
391 printf("%02x", t->usage[i]);
392 printf(") failed\n");
393 printf("should be: ");
394 for (i = 0; i < 24; i++)
395 printf("%02x", t->dk[i]);
396 printf("\n result was: ");
398 for (i = 0; i < 24; i++)
399 printf("%02x", dkp[i]);