Remove support for Kernel GSS algorithms deprecated in r348875.
This removes support for using DES, Triple DES, and RC4. Reviewed by: cem, kp Tested by: kp Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D24344
This commit is contained in:
John Baldwin
parent
3133bbf7a4
commit
dee3aa83d1
@ -3945,9 +3945,6 @@ kgssapi/gssd_prot.c optional kgssapi
|
||||
kgssapi/krb5/krb5_mech.c optional kgssapi
|
||||
kgssapi/krb5/kcrypto.c optional kgssapi
|
||||
kgssapi/krb5/kcrypto_aes.c optional kgssapi
|
||||
kgssapi/krb5/kcrypto_arcfour.c optional kgssapi
|
||||
kgssapi/krb5/kcrypto_des.c optional kgssapi
|
||||
kgssapi/krb5/kcrypto_des3.c optional kgssapi
|
||||
kgssapi/kgss_if.m optional kgssapi
|
||||
kgssapi/gsstest.c optional kgssapi_debug
|
||||
# These files in libkern/ are those needed by all architectures. Some
|
||||
|
||||
@ -42,20 +42,11 @@ __FBSDID("$FreeBSD$");
|
||||
#include "kcrypto.h"
|
||||
|
||||
static struct krb5_encryption_class *krb5_encryption_classes[] = {
|
||||
&krb5_des_encryption_class,
|
||||
&krb5_des3_encryption_class,
|
||||
&krb5_aes128_encryption_class,
|
||||
&krb5_aes256_encryption_class,
|
||||
&krb5_arcfour_encryption_class,
|
||||
&krb5_arcfour_56_encryption_class,
|
||||
NULL
|
||||
};
|
||||
|
||||
struct timeval krb5_warn_interval = { .tv_sec = 3600, .tv_usec = 0 };
|
||||
SYSCTL_TIMEVAL_SEC(_kern, OID_AUTO, kgssapi_warn_interval, CTLFLAG_RW,
|
||||
&krb5_warn_interval,
|
||||
"Delay in seconds between warnings of deprecated KGSSAPI crypto.");
|
||||
|
||||
struct krb5_encryption_class *
|
||||
krb5_find_encryption_class(int etype)
|
||||
{
|
||||
|
||||
@ -95,13 +95,8 @@ struct krb5_key_state {
|
||||
void *ks_priv;
|
||||
};
|
||||
|
||||
extern struct krb5_encryption_class krb5_des_encryption_class;
|
||||
extern struct krb5_encryption_class krb5_des3_encryption_class;
|
||||
extern struct krb5_encryption_class krb5_aes128_encryption_class;
|
||||
extern struct krb5_encryption_class krb5_aes256_encryption_class;
|
||||
extern struct krb5_encryption_class krb5_arcfour_encryption_class;
|
||||
extern struct krb5_encryption_class krb5_arcfour_56_encryption_class;
|
||||
extern struct timeval krb5_warn_interval;
|
||||
|
||||
static __inline void
|
||||
krb5_set_key(struct krb5_key_state *ks, const void *keydata)
|
||||
|
||||
@ -1,225 +0,0 @@
|
||||
/*-
|
||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||
*
|
||||
* Copyright (c) 2008 Isilon Inc http://www.isilon.com/
|
||||
* Authors: Doug Rabson <dfr@rabson.org>
|
||||
* Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/lock.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/md5.h>
|
||||
#include <sys/kobj.h>
|
||||
#include <sys/mbuf.h>
|
||||
#include <crypto/rc4/rc4.h>
|
||||
|
||||
#include <kgssapi/gssapi.h>
|
||||
#include <kgssapi/gssapi_impl.h>
|
||||
|
||||
#include "kcrypto.h"
|
||||
|
||||
static void
|
||||
arcfour_init(struct krb5_key_state *ks)
|
||||
{
|
||||
static struct timeval lastwarn;
|
||||
|
||||
ks->ks_priv = NULL;
|
||||
if (ratecheck(&lastwarn, &krb5_warn_interval))
|
||||
gone_in(13, "RC4 cipher for Kerberos GSS");
|
||||
}
|
||||
|
||||
static void
|
||||
arcfour_destroy(struct krb5_key_state *ks)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
arcfour_set_key(struct krb5_key_state *ks, const void *in)
|
||||
{
|
||||
void *kp = ks->ks_key;
|
||||
|
||||
if (kp != in)
|
||||
bcopy(in, kp, 16);
|
||||
}
|
||||
|
||||
static void
|
||||
arcfour_random_to_key(struct krb5_key_state *ks, const void *in)
|
||||
{
|
||||
|
||||
arcfour_set_key(ks, in);
|
||||
}
|
||||
|
||||
static void
|
||||
arcfour_hmac(uint8_t *key, uint8_t *data, size_t datalen,
|
||||
uint8_t *result)
|
||||
{
|
||||
uint8_t buf[64];
|
||||
MD5_CTX md5;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
buf[i] = key[i] ^ 0x36;
|
||||
for (; i < 64; i++)
|
||||
buf[i] = 0x36;
|
||||
|
||||
MD5Init(&md5);
|
||||
MD5Update(&md5, buf, 64);
|
||||
MD5Update(&md5, data, datalen);
|
||||
MD5Final(result, &md5);
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
buf[i] = key[i] ^ 0x5c;
|
||||
for (; i < 64; i++)
|
||||
buf[i] = 0x5c;
|
||||
|
||||
MD5Init(&md5);
|
||||
MD5Update(&md5, buf, 64);
|
||||
MD5Update(&md5, result, 16);
|
||||
MD5Final(result, &md5);
|
||||
}
|
||||
|
||||
static void
|
||||
arcfour_derive_key(const struct krb5_key_state *ks, uint32_t usage,
|
||||
uint8_t *newkey)
|
||||
{
|
||||
uint8_t t[4];
|
||||
|
||||
t[0] = (usage >> 24);
|
||||
t[1] = (usage >> 16);
|
||||
t[2] = (usage >> 8);
|
||||
t[3] = (usage >> 0);
|
||||
if (ks->ks_class->ec_type == ETYPE_ARCFOUR_HMAC_MD5_56) {
|
||||
uint8_t L40[14] = "fortybits";
|
||||
bcopy(t, L40 + 10, 4);
|
||||
arcfour_hmac(ks->ks_key, L40, 14, newkey);
|
||||
memset(newkey + 7, 0xab, 9);
|
||||
} else {
|
||||
arcfour_hmac(ks->ks_key, t, 4, newkey);
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
rc4_crypt_int(void *rs, void *buf, u_int len)
|
||||
{
|
||||
|
||||
rc4_crypt(rs, buf, buf, len);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
arcfour_encrypt(const struct krb5_key_state *ks, struct mbuf *inout,
|
||||
size_t skip, size_t len, void *ivec, size_t ivlen)
|
||||
{
|
||||
struct rc4_state rs;
|
||||
uint8_t newkey[16];
|
||||
|
||||
arcfour_derive_key(ks, 0, newkey);
|
||||
|
||||
/*
|
||||
* If we have an IV, then generate a new key from it using HMAC.
|
||||
*/
|
||||
if (ivec) {
|
||||
uint8_t kk[16];
|
||||
arcfour_hmac(newkey, ivec, ivlen, kk);
|
||||
rc4_init(&rs, kk, 16);
|
||||
} else {
|
||||
rc4_init(&rs, newkey, 16);
|
||||
}
|
||||
|
||||
m_apply(inout, skip, len, rc4_crypt_int, &rs);
|
||||
}
|
||||
|
||||
static int
|
||||
MD5Update_int(void *ctx, void *buf, u_int len)
|
||||
{
|
||||
|
||||
MD5Update(ctx, buf, len);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
arcfour_checksum(const struct krb5_key_state *ks, int usage,
|
||||
struct mbuf *inout, size_t skip, size_t inlen, size_t outlen)
|
||||
{
|
||||
MD5_CTX md5;
|
||||
uint8_t Ksign[16];
|
||||
uint8_t t[4];
|
||||
uint8_t sgn_cksum[16];
|
||||
|
||||
arcfour_hmac(ks->ks_key, "signaturekey", 13, Ksign);
|
||||
|
||||
t[0] = usage >> 0;
|
||||
t[1] = usage >> 8;
|
||||
t[2] = usage >> 16;
|
||||
t[3] = usage >> 24;
|
||||
|
||||
MD5Init(&md5);
|
||||
MD5Update(&md5, t, 4);
|
||||
m_apply(inout, skip, inlen, MD5Update_int, &md5);
|
||||
MD5Final(sgn_cksum, &md5);
|
||||
|
||||
arcfour_hmac(Ksign, sgn_cksum, 16, sgn_cksum);
|
||||
m_copyback(inout, skip + inlen, outlen, sgn_cksum);
|
||||
}
|
||||
|
||||
struct krb5_encryption_class krb5_arcfour_encryption_class = {
|
||||
"arcfour-hmac-md5", /* name */
|
||||
ETYPE_ARCFOUR_HMAC_MD5, /* etype */
|
||||
0, /* flags */
|
||||
1, /* blocklen */
|
||||
1, /* msgblocklen */
|
||||
8, /* checksumlen */
|
||||
128, /* keybits */
|
||||
16, /* keylen */
|
||||
arcfour_init,
|
||||
arcfour_destroy,
|
||||
arcfour_set_key,
|
||||
arcfour_random_to_key,
|
||||
arcfour_encrypt,
|
||||
arcfour_encrypt,
|
||||
arcfour_checksum
|
||||
};
|
||||
|
||||
struct krb5_encryption_class krb5_arcfour_56_encryption_class = {
|
||||
"arcfour-hmac-md5-56", /* name */
|
||||
ETYPE_ARCFOUR_HMAC_MD5_56, /* etype */
|
||||
0, /* flags */
|
||||
1, /* blocklen */
|
||||
1, /* msgblocklen */
|
||||
8, /* checksumlen */
|
||||
128, /* keybits */
|
||||
16, /* keylen */
|
||||
arcfour_init,
|
||||
arcfour_destroy,
|
||||
arcfour_set_key,
|
||||
arcfour_random_to_key,
|
||||
arcfour_encrypt,
|
||||
arcfour_encrypt,
|
||||
arcfour_checksum
|
||||
};
|
||||
@ -1,260 +0,0 @@
|
||||
/*-
|
||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||
*
|
||||
* Copyright (c) 2008 Isilon Inc http://www.isilon.com/
|
||||
* Authors: Doug Rabson <dfr@rabson.org>
|
||||
* Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/lock.h>
|
||||
#include <sys/kobj.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/md5.h>
|
||||
#include <sys/mutex.h>
|
||||
#include <sys/mbuf.h>
|
||||
#include <crypto/des/des.h>
|
||||
#include <opencrypto/cryptodev.h>
|
||||
|
||||
#include <kgssapi/gssapi.h>
|
||||
#include <kgssapi/gssapi_impl.h>
|
||||
|
||||
#include "kcrypto.h"
|
||||
|
||||
struct des1_state {
|
||||
struct mtx ds_lock;
|
||||
crypto_session_t ds_session;
|
||||
};
|
||||
|
||||
static void
|
||||
des1_init(struct krb5_key_state *ks)
|
||||
{
|
||||
static struct timeval lastwarn;
|
||||
struct des1_state *ds;
|
||||
|
||||
ds = malloc(sizeof(struct des1_state), M_GSSAPI, M_WAITOK|M_ZERO);
|
||||
mtx_init(&ds->ds_lock, "gss des lock", NULL, MTX_DEF);
|
||||
ks->ks_priv = ds;
|
||||
if (ratecheck(&lastwarn, &krb5_warn_interval))
|
||||
gone_in(13, "DES cipher for Kerberos GSS");
|
||||
}
|
||||
|
||||
static void
|
||||
des1_destroy(struct krb5_key_state *ks)
|
||||
{
|
||||
struct des1_state *ds = ks->ks_priv;
|
||||
|
||||
if (ds->ds_session)
|
||||
crypto_freesession(ds->ds_session);
|
||||
mtx_destroy(&ds->ds_lock);
|
||||
free(ks->ks_priv, M_GSSAPI);
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
des1_set_key(struct krb5_key_state *ks, const void *in)
|
||||
{
|
||||
struct crypto_session_params csp;
|
||||
void *kp = ks->ks_key;
|
||||
struct des1_state *ds = ks->ks_priv;
|
||||
|
||||
if (ds->ds_session)
|
||||
crypto_freesession(ds->ds_session);
|
||||
|
||||
if (kp != in)
|
||||
bcopy(in, kp, ks->ks_class->ec_keylen);
|
||||
|
||||
memset(&csp, 0, sizeof(csp));
|
||||
csp.csp_mode = CSP_MODE_CIPHER;
|
||||
csp.csp_ivlen = 8;
|
||||
csp.csp_cipher_alg = CRYPTO_DES_CBC;
|
||||
csp.csp_cipher_klen = 8;
|
||||
csp.csp_cipher_key = ks->ks_key;
|
||||
|
||||
crypto_newsession(&ds->ds_session, &csp,
|
||||
CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE);
|
||||
}
|
||||
|
||||
static void
|
||||
des1_random_to_key(struct krb5_key_state *ks, const void *in)
|
||||
{
|
||||
uint8_t *outkey = ks->ks_key;
|
||||
const uint8_t *inkey = in;
|
||||
|
||||
/*
|
||||
* Expand 56 bits of random data to 64 bits as follows
|
||||
* (in the example, bit number 1 is the MSB of the 56
|
||||
* bits of random data):
|
||||
*
|
||||
* expanded =
|
||||
* 1 2 3 4 5 6 7 p
|
||||
* 9 10 11 12 13 14 15 p
|
||||
* 17 18 19 20 21 22 23 p
|
||||
* 25 26 27 28 29 30 31 p
|
||||
* 33 34 35 36 37 38 39 p
|
||||
* 41 42 43 44 45 46 47 p
|
||||
* 49 50 51 52 53 54 55 p
|
||||
* 56 48 40 32 24 16 8 p
|
||||
*/
|
||||
outkey[0] = inkey[0];
|
||||
outkey[1] = inkey[1];
|
||||
outkey[2] = inkey[2];
|
||||
outkey[3] = inkey[3];
|
||||
outkey[4] = inkey[4];
|
||||
outkey[5] = inkey[5];
|
||||
outkey[6] = inkey[6];
|
||||
outkey[7] = (((inkey[0] & 1) << 1)
|
||||
| ((inkey[1] & 1) << 2)
|
||||
| ((inkey[2] & 1) << 3)
|
||||
| ((inkey[3] & 1) << 4)
|
||||
| ((inkey[4] & 1) << 5)
|
||||
| ((inkey[5] & 1) << 6)
|
||||
| ((inkey[6] & 1) << 7));
|
||||
des_set_odd_parity(outkey);
|
||||
if (des_is_weak_key(outkey))
|
||||
outkey[7] ^= 0xf0;
|
||||
|
||||
des1_set_key(ks, ks->ks_key);
|
||||
}
|
||||
|
||||
static int
|
||||
des1_crypto_cb(struct cryptop *crp)
|
||||
{
|
||||
int error;
|
||||
struct des1_state *ds = (struct des1_state *) crp->crp_opaque;
|
||||
|
||||
if (crypto_ses2caps(ds->ds_session) & CRYPTOCAP_F_SYNC)
|
||||
return (0);
|
||||
|
||||
error = crp->crp_etype;
|
||||
if (error == EAGAIN)
|
||||
error = crypto_dispatch(crp);
|
||||
mtx_lock(&ds->ds_lock);
|
||||
if (error || (crp->crp_flags & CRYPTO_F_DONE))
|
||||
wakeup(crp);
|
||||
mtx_unlock(&ds->ds_lock);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
des1_encrypt_1(const struct krb5_key_state *ks, int buf_type, void *buf,
|
||||
size_t skip, size_t len, void *ivec, bool encrypt)
|
||||
{
|
||||
struct des1_state *ds = ks->ks_priv;
|
||||
struct cryptop *crp;
|
||||
int error;
|
||||
|
||||
crp = crypto_getreq(ds->ds_session, M_WAITOK);
|
||||
|
||||
crp->crp_payload_start = skip;
|
||||
crp->crp_payload_length = len;
|
||||
crp->crp_op = encrypt ? CRYPTO_OP_ENCRYPT : CRYPTO_OP_DECRYPT;
|
||||
crp->crp_flags = CRYPTO_F_CBIFSYNC | CRYPTO_F_IV_SEPARATE;
|
||||
if (ivec) {
|
||||
memcpy(crp->crp_iv, ivec, 8);
|
||||
} else {
|
||||
memset(crp->crp_iv, 0, 8);
|
||||
}
|
||||
crp->crp_buf_type = buf_type;
|
||||
crp->crp_buf = buf;
|
||||
crp->crp_opaque = ds;
|
||||
crp->crp_callback = des1_crypto_cb;
|
||||
|
||||
error = crypto_dispatch(crp);
|
||||
|
||||
if ((crypto_ses2caps(ds->ds_session) & CRYPTOCAP_F_SYNC) == 0) {
|
||||
mtx_lock(&ds->ds_lock);
|
||||
if (!error && !(crp->crp_flags & CRYPTO_F_DONE))
|
||||
error = msleep(crp, &ds->ds_lock, 0, "gssdes", 0);
|
||||
mtx_unlock(&ds->ds_lock);
|
||||
}
|
||||
|
||||
crypto_freereq(crp);
|
||||
}
|
||||
|
||||
static void
|
||||
des1_encrypt(const struct krb5_key_state *ks, struct mbuf *inout,
|
||||
size_t skip, size_t len, void *ivec, size_t ivlen)
|
||||
{
|
||||
|
||||
des1_encrypt_1(ks, CRYPTO_BUF_MBUF, inout, skip, len, ivec, true);
|
||||
}
|
||||
|
||||
static void
|
||||
des1_decrypt(const struct krb5_key_state *ks, struct mbuf *inout,
|
||||
size_t skip, size_t len, void *ivec, size_t ivlen)
|
||||
{
|
||||
|
||||
des1_encrypt_1(ks, CRYPTO_BUF_MBUF, inout, skip, len, ivec, false);
|
||||
}
|
||||
|
||||
static int
|
||||
MD5Update_int(void *ctx, void *buf, u_int len)
|
||||
{
|
||||
|
||||
MD5Update(ctx, buf, len);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
des1_checksum(const struct krb5_key_state *ks, int usage,
|
||||
struct mbuf *inout, size_t skip, size_t inlen, size_t outlen)
|
||||
{
|
||||
char hash[16];
|
||||
MD5_CTX md5;
|
||||
|
||||
/*
|
||||
* This checksum is specifically for GSS-API. First take the
|
||||
* MD5 checksum of the message, then calculate the CBC mode
|
||||
* checksum of that MD5 checksum using a zero IV.
|
||||
*/
|
||||
MD5Init(&md5);
|
||||
m_apply(inout, skip, inlen, MD5Update_int, &md5);
|
||||
MD5Final(hash, &md5);
|
||||
|
||||
des1_encrypt_1(ks, CRYPTO_BUF_CONTIG, hash, 0, 16, NULL, true);
|
||||
m_copyback(inout, skip + inlen, outlen, hash + 8);
|
||||
}
|
||||
|
||||
struct krb5_encryption_class krb5_des_encryption_class = {
|
||||
"des-cbc-md5", /* name */
|
||||
ETYPE_DES_CBC_CRC, /* etype */
|
||||
0, /* flags */
|
||||
8, /* blocklen */
|
||||
8, /* msgblocklen */
|
||||
8, /* checksumlen */
|
||||
56, /* keybits */
|
||||
8, /* keylen */
|
||||
des1_init,
|
||||
des1_destroy,
|
||||
des1_set_key,
|
||||
des1_random_to_key,
|
||||
des1_encrypt,
|
||||
des1_decrypt,
|
||||
des1_checksum
|
||||
};
|
||||
@ -1,401 +0,0 @@
|
||||
/*-
|
||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||
*
|
||||
* Copyright (c) 2008 Isilon Inc http://www.isilon.com/
|
||||
* Authors: Doug Rabson <dfr@rabson.org>
|
||||
* Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/lock.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/mutex.h>
|
||||
#include <sys/kobj.h>
|
||||
#include <sys/mbuf.h>
|
||||
#include <crypto/des/des.h>
|
||||
#include <opencrypto/cryptodev.h>
|
||||
|
||||
#include <kgssapi/gssapi.h>
|
||||
#include <kgssapi/gssapi_impl.h>
|
||||
|
||||
#include "kcrypto.h"
|
||||
|
||||
#define DES3_FLAGS (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)
|
||||
|
||||
struct des3_state {
|
||||
struct mtx ds_lock;
|
||||
crypto_session_t ds_cipher_session;
|
||||
crypto_session_t ds_hmac_session;
|
||||
};
|
||||
|
||||
static void
|
||||
des3_init(struct krb5_key_state *ks)
|
||||
{
|
||||
static struct timeval lastwarn;
|
||||
struct des3_state *ds;
|
||||
|
||||
ds = malloc(sizeof(struct des3_state), M_GSSAPI, M_WAITOK|M_ZERO);
|
||||
mtx_init(&ds->ds_lock, "gss des3 lock", NULL, MTX_DEF);
|
||||
ks->ks_priv = ds;
|
||||
if (ratecheck(&lastwarn, &krb5_warn_interval))
|
||||
gone_in(13, "DES3 cipher for Kerberos GSS");
|
||||
}
|
||||
|
||||
static void
|
||||
des3_destroy(struct krb5_key_state *ks)
|
||||
{
|
||||
struct des3_state *ds = ks->ks_priv;
|
||||
|
||||
if (ds->ds_cipher_session) {
|
||||
crypto_freesession(ds->ds_cipher_session);
|
||||
crypto_freesession(ds->ds_hmac_session);
|
||||
}
|
||||
mtx_destroy(&ds->ds_lock);
|
||||
free(ks->ks_priv, M_GSSAPI);
|
||||
}
|
||||
|
||||
static void
|
||||
des3_set_key(struct krb5_key_state *ks, const void *in)
|
||||
{
|
||||
struct crypto_session_params csp;
|
||||
void *kp = ks->ks_key;
|
||||
struct des3_state *ds = ks->ks_priv;
|
||||
|
||||
if (ds->ds_cipher_session) {
|
||||
crypto_freesession(ds->ds_cipher_session);
|
||||
crypto_freesession(ds->ds_hmac_session);
|
||||
}
|
||||
|
||||
if (kp != in)
|
||||
bcopy(in, kp, ks->ks_class->ec_keylen);
|
||||
|
||||
memset(&csp, 0, sizeof(csp));
|
||||
csp.csp_mode = CSP_MODE_DIGEST;
|
||||
csp.csp_auth_alg = CRYPTO_SHA1_HMAC;
|
||||
csp.csp_auth_klen = 24;
|
||||
csp.csp_auth_key = ks->ks_key;
|
||||
|
||||
crypto_newsession(&ds->ds_hmac_session, &csp,
|
||||
CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE);
|
||||
|
||||
memset(&csp, 0, sizeof(csp));
|
||||
csp.csp_mode = CSP_MODE_CIPHER;
|
||||
csp.csp_cipher_alg = CRYPTO_3DES_CBC;
|
||||
csp.csp_cipher_klen = 24;
|
||||
csp.csp_cipher_key = ks->ks_key;
|
||||
csp.csp_ivlen = 8;
|
||||
|
||||
crypto_newsession(&ds->ds_cipher_session, &csp,
|
||||
CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE);
|
||||
}
|
||||
|
||||
static void
|
||||
des3_random_to_key(struct krb5_key_state *ks, const void *in)
|
||||
{
|
||||
uint8_t *outkey;
|
||||
const uint8_t *inkey;
|
||||
int subkey;
|
||||
|
||||
for (subkey = 0, outkey = ks->ks_key, inkey = in; subkey < 3;
|
||||
subkey++, outkey += 8, inkey += 7) {
|
||||
/*
|
||||
* Expand 56 bits of random data to 64 bits as follows
|
||||
* (in the example, bit number 1 is the MSB of the 56
|
||||
* bits of random data):
|
||||
*
|
||||
* expanded =
|
||||
* 1 2 3 4 5 6 7 p
|
||||
* 9 10 11 12 13 14 15 p
|
||||
* 17 18 19 20 21 22 23 p
|
||||
* 25 26 27 28 29 30 31 p
|
||||
* 33 34 35 36 37 38 39 p
|
||||
* 41 42 43 44 45 46 47 p
|
||||
* 49 50 51 52 53 54 55 p
|
||||
* 56 48 40 32 24 16 8 p
|
||||
*/
|
||||
outkey[0] = inkey[0];
|
||||
outkey[1] = inkey[1];
|
||||
outkey[2] = inkey[2];
|
||||
outkey[3] = inkey[3];
|
||||
outkey[4] = inkey[4];
|
||||
outkey[5] = inkey[5];
|
||||
outkey[6] = inkey[6];
|
||||
outkey[7] = (((inkey[0] & 1) << 1)
|
||||
| ((inkey[1] & 1) << 2)
|
||||
| ((inkey[2] & 1) << 3)
|
||||
| ((inkey[3] & 1) << 4)
|
||||
| ((inkey[4] & 1) << 5)
|
||||
| ((inkey[5] & 1) << 6)
|
||||
| ((inkey[6] & 1) << 7));
|
||||
des_set_odd_parity(outkey);
|
||||
if (des_is_weak_key(outkey))
|
||||
outkey[7] ^= 0xf0;
|
||||
}
|
||||
|
||||
des3_set_key(ks, ks->ks_key);
|
||||
}
|
||||
|
||||
static int
|
||||
des3_crypto_cb(struct cryptop *crp)
|
||||
{
|
||||
int error;
|
||||
struct des3_state *ds = (struct des3_state *) crp->crp_opaque;
|
||||
|
||||
if (crypto_ses2caps(crp->crp_session) & CRYPTOCAP_F_SYNC)
|
||||
return (0);
|
||||
|
||||
error = crp->crp_etype;
|
||||
if (error == EAGAIN)
|
||||
error = crypto_dispatch(crp);
|
||||
mtx_lock(&ds->ds_lock);
|
||||
if (error || (crp->crp_flags & CRYPTO_F_DONE))
|
||||
wakeup(crp);
|
||||
mtx_unlock(&ds->ds_lock);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
des3_encrypt_1(const struct krb5_key_state *ks, struct mbuf *inout,
|
||||
size_t skip, size_t len, void *ivec, bool encrypt)
|
||||
{
|
||||
struct des3_state *ds = ks->ks_priv;
|
||||
struct cryptop *crp;
|
||||
int error;
|
||||
|
||||
crp = crypto_getreq(ds->ds_cipher_session, M_WAITOK);
|
||||
|
||||
crp->crp_payload_start = skip;
|
||||
crp->crp_payload_length = len;
|
||||
crp->crp_op = encrypt ? CRYPTO_OP_ENCRYPT : CRYPTO_OP_DECRYPT;
|
||||
crp->crp_flags = CRYPTO_F_CBIFSYNC | CRYPTO_F_IV_SEPARATE;
|
||||
if (ivec) {
|
||||
memcpy(crp->crp_iv, ivec, 8);
|
||||
} else {
|
||||
memset(crp->crp_iv, 0, 8);
|
||||
}
|
||||
crp->crp_buf_type = CRYPTO_BUF_MBUF;
|
||||
crp->crp_mbuf = inout;
|
||||
crp->crp_opaque = ds;
|
||||
crp->crp_callback = des3_crypto_cb;
|
||||
|
||||
error = crypto_dispatch(crp);
|
||||
|
||||
if ((crypto_ses2caps(ds->ds_cipher_session) & CRYPTOCAP_F_SYNC) == 0) {
|
||||
mtx_lock(&ds->ds_lock);
|
||||
if (!error && !(crp->crp_flags & CRYPTO_F_DONE))
|
||||
error = msleep(crp, &ds->ds_lock, 0, "gssdes3", 0);
|
||||
mtx_unlock(&ds->ds_lock);
|
||||
}
|
||||
|
||||
crypto_freereq(crp);
|
||||
}
|
||||
|
||||
static void
|
||||
des3_encrypt(const struct krb5_key_state *ks, struct mbuf *inout,
|
||||
size_t skip, size_t len, void *ivec, size_t ivlen)
|
||||
{
|
||||
|
||||
des3_encrypt_1(ks, inout, skip, len, ivec, true);
|
||||
}
|
||||
|
||||
static void
|
||||
des3_decrypt(const struct krb5_key_state *ks, struct mbuf *inout,
|
||||
size_t skip, size_t len, void *ivec, size_t ivlen)
|
||||
{
|
||||
|
||||
des3_encrypt_1(ks, inout, skip, len, ivec, false);
|
||||
}
|
||||
|
||||
static void
|
||||
des3_checksum(const struct krb5_key_state *ks, int usage,
|
||||
struct mbuf *inout, size_t skip, size_t inlen, size_t outlen)
|
||||
{
|
||||
struct des3_state *ds = ks->ks_priv;
|
||||
struct cryptop *crp;
|
||||
int error;
|
||||
|
||||
crp = crypto_getreq(ds->ds_hmac_session, M_WAITOK);
|
||||
|
||||
crp->crp_payload_start = skip;
|
||||
crp->crp_payload_length = inlen;
|
||||
crp->crp_digest_start = skip + inlen;
|
||||
crp->crp_op = CRYPTO_OP_COMPUTE_DIGEST;
|
||||
crp->crp_flags = CRYPTO_F_CBIFSYNC;
|
||||
crp->crp_buf_type = CRYPTO_BUF_MBUF;
|
||||
crp->crp_mbuf = inout;
|
||||
crp->crp_opaque = ds;
|
||||
crp->crp_callback = des3_crypto_cb;
|
||||
|
||||
error = crypto_dispatch(crp);
|
||||
|
||||
if ((crypto_ses2caps(ds->ds_hmac_session) & CRYPTOCAP_F_SYNC) == 0) {
|
||||
mtx_lock(&ds->ds_lock);
|
||||
if (!error && !(crp->crp_flags & CRYPTO_F_DONE))
|
||||
error = msleep(crp, &ds->ds_lock, 0, "gssdes3", 0);
|
||||
mtx_unlock(&ds->ds_lock);
|
||||
}
|
||||
|
||||
crypto_freereq(crp);
|
||||
}
|
||||
|
||||
struct krb5_encryption_class krb5_des3_encryption_class = {
|
||||
"des3-cbc-sha1", /* name */
|
||||
ETYPE_DES3_CBC_SHA1, /* etype */
|
||||
EC_DERIVED_KEYS, /* flags */
|
||||
8, /* blocklen */
|
||||
8, /* msgblocklen */
|
||||
20, /* checksumlen */
|
||||
168, /* keybits */
|
||||
24, /* keylen */
|
||||
des3_init,
|
||||
des3_destroy,
|
||||
des3_set_key,
|
||||
des3_random_to_key,
|
||||
des3_encrypt,
|
||||
des3_decrypt,
|
||||
des3_checksum
|
||||
};
|
||||
|
||||
#if 0
|
||||
struct des3_dk_test {
|
||||
uint8_t key[24];
|
||||
uint8_t usage[8];
|
||||
size_t usagelen;
|
||||
uint8_t dk[24];
|
||||
};
|
||||
struct des3_dk_test tests[] = {
|
||||
{{0xdc, 0xe0, 0x6b, 0x1f, 0x64, 0xc8, 0x57, 0xa1, 0x1c, 0x3d, 0xb5,
|
||||
0x7c, 0x51, 0x89, 0x9b, 0x2c, 0xc1, 0x79, 0x10, 0x08, 0xce, 0x97,
|
||||
0x3b, 0x92},
|
||||
{0x00, 0x00, 0x00, 0x01, 0x55}, 5,
|
||||
{0x92, 0x51, 0x79, 0xd0, 0x45, 0x91, 0xa7, 0x9b, 0x5d, 0x31, 0x92,
|
||||
0xc4, 0xa7, 0xe9, 0xc2, 0x89, 0xb0, 0x49, 0xc7, 0x1f, 0x6e, 0xe6,
|
||||
0x04, 0xcd}},
|
||||
|
||||
{{0x5e, 0x13, 0xd3, 0x1c, 0x70, 0xef, 0x76, 0x57, 0x46, 0x57, 0x85,
|
||||
0x31, 0xcb, 0x51, 0xc1, 0x5b, 0xf1, 0x1c, 0xa8, 0x2c, 0x97, 0xce,
|
||||
0xe9, 0xf2},
|
||||
{0x00, 0x00, 0x00, 0x01, 0xaa}, 5,
|
||||
{0x9e, 0x58, 0xe5, 0xa1, 0x46, 0xd9, 0x94, 0x2a, 0x10, 0x1c, 0x46,
|
||||
0x98, 0x45, 0xd6, 0x7a, 0x20, 0xe3, 0xc4, 0x25, 0x9e, 0xd9, 0x13,
|
||||
0xf2, 0x07}},
|
||||
|
||||
{{0x98, 0xe6, 0xfd, 0x8a, 0x04, 0xa4, 0xb6, 0x85, 0x9b, 0x75, 0xa1,
|
||||
0x76, 0x54, 0x0b, 0x97, 0x52, 0xba, 0xd3, 0xec, 0xd6, 0x10, 0xa2,
|
||||
0x52, 0xbc},
|
||||
{0x00, 0x00, 0x00, 0x01, 0x55}, 5,
|
||||
{0x13, 0xfe, 0xf8, 0x0d, 0x76, 0x3e, 0x94, 0xec, 0x6d, 0x13, 0xfd,
|
||||
0x2c, 0xa1, 0xd0, 0x85, 0x07, 0x02, 0x49, 0xda, 0xd3, 0x98, 0x08,
|
||||
0xea, 0xbf}},
|
||||
|
||||
{{0x62, 0x2a, 0xec, 0x25, 0xa2, 0xfe, 0x2c, 0xad, 0x70, 0x94, 0x68,
|
||||
0x0b, 0x7c, 0x64, 0x94, 0x02, 0x80, 0x08, 0x4c, 0x1a, 0x7c, 0xec,
|
||||
0x92, 0xb5},
|
||||
{0x00, 0x00, 0x00, 0x01, 0xaa}, 5,
|
||||
{0xf8, 0xdf, 0xbf, 0x04, 0xb0, 0x97, 0xe6, 0xd9, 0xdc, 0x07, 0x02,
|
||||
0x68, 0x6b, 0xcb, 0x34, 0x89, 0xd9, 0x1f, 0xd9, 0xa4, 0x51, 0x6b,
|
||||
0x70, 0x3e}},
|
||||
|
||||
{{0xd3, 0xf8, 0x29, 0x8c, 0xcb, 0x16, 0x64, 0x38, 0xdc, 0xb9, 0xb9,
|
||||
0x3e, 0xe5, 0xa7, 0x62, 0x92, 0x86, 0xa4, 0x91, 0xf8, 0x38, 0xf8,
|
||||
0x02, 0xfb},
|
||||
{0x6b, 0x65, 0x72, 0x62, 0x65, 0x72, 0x6f, 0x73}, 8,
|
||||
{0x23, 0x70, 0xda, 0x57, 0x5d, 0x2a, 0x3d, 0xa8, 0x64, 0xce, 0xbf,
|
||||
0xdc, 0x52, 0x04, 0xd5, 0x6d, 0xf7, 0x79, 0xa7, 0xdf, 0x43, 0xd9,
|
||||
0xda, 0x43}},
|
||||
|
||||
{{0xc1, 0x08, 0x16, 0x49, 0xad, 0xa7, 0x43, 0x62, 0xe6, 0xa1, 0x45,
|
||||
0x9d, 0x01, 0xdf, 0xd3, 0x0d, 0x67, 0xc2, 0x23, 0x4c, 0x94, 0x07,
|
||||
0x04, 0xda},
|
||||
{0x00, 0x00, 0x00, 0x01, 0x55}, 5,
|
||||
{0x34, 0x80, 0x57, 0xec, 0x98, 0xfd, 0xc4, 0x80, 0x16, 0x16, 0x1c,
|
||||
0x2a, 0x4c, 0x7a, 0x94, 0x3e, 0x92, 0xae, 0x49, 0x2c, 0x98, 0x91,
|
||||
0x75, 0xf7}},
|
||||
|
||||
{{0x5d, 0x15, 0x4a, 0xf2, 0x38, 0xf4, 0x67, 0x13, 0x15, 0x57, 0x19,
|
||||
0xd5, 0x5e, 0x2f, 0x1f, 0x79, 0x0d, 0xd6, 0x61, 0xf2, 0x79, 0xa7,
|
||||
0x91, 0x7c},
|
||||
{0x00, 0x00, 0x00, 0x01, 0xaa}, 5,
|
||||
{0xa8, 0x80, 0x8a, 0xc2, 0x67, 0xda, 0xda, 0x3d, 0xcb, 0xe9, 0xa7,
|
||||
0xc8, 0x46, 0x26, 0xfb, 0xc7, 0x61, 0xc2, 0x94, 0xb0, 0x13, 0x15,
|
||||
0xe5, 0xc1}},
|
||||
|
||||
{{0x79, 0x85, 0x62, 0xe0, 0x49, 0x85, 0x2f, 0x57, 0xdc, 0x8c, 0x34,
|
||||
0x3b, 0xa1, 0x7f, 0x2c, 0xa1, 0xd9, 0x73, 0x94, 0xef, 0xc8, 0xad,
|
||||
0xc4, 0x43},
|
||||
{0x00, 0x00, 0x00, 0x01, 0x55}, 5,
|
||||
{0xc8, 0x13, 0xf8, 0x8a, 0x3b, 0xe3, 0xb3, 0x34, 0xf7, 0x54, 0x25,
|
||||
0xce, 0x91, 0x75, 0xfb, 0xe3, 0xc8, 0x49, 0x3b, 0x89, 0xc8, 0x70,
|
||||
0x3b, 0x49}},
|
||||
|
||||
{{0x26, 0xdc, 0xe3, 0x34, 0xb5, 0x45, 0x29, 0x2f, 0x2f, 0xea, 0xb9,
|
||||
0xa8, 0x70, 0x1a, 0x89, 0xa4, 0xb9, 0x9e, 0xb9, 0x94, 0x2c, 0xec,
|
||||
0xd0, 0x16},
|
||||
{0x00, 0x00, 0x00, 0x01, 0xaa}, 5,
|
||||
{0xf4, 0x8f, 0xfd, 0x6e, 0x83, 0xf8, 0x3e, 0x73, 0x54, 0xe6, 0x94,
|
||||
0xfd, 0x25, 0x2c, 0xf8, 0x3b, 0xfe, 0x58, 0xf7, 0xd5, 0xba, 0x37,
|
||||
0xec, 0x5d}},
|
||||
};
|
||||
#define N_TESTS (sizeof(tests) / sizeof(tests[0]))
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
struct krb5_key_state *key, *dk;
|
||||
uint8_t *dkp;
|
||||
int j, i;
|
||||
|
||||
for (j = 0; j < N_TESTS; j++) {
|
||||
struct des3_dk_test *t = &tests[j];
|
||||
key = krb5_create_key(&des3_encryption_class);
|
||||
krb5_set_key(key, t->key);
|
||||
dk = krb5_derive_key(key, t->usage, t->usagelen);
|
||||
krb5_free_key(key);
|
||||
if (memcmp(dk->ks_key, t->dk, 24)) {
|
||||
printf("DES3 dk(");
|
||||
for (i = 0; i < 24; i++)
|
||||
printf("%02x", t->key[i]);
|
||||
printf(", ");
|
||||
for (i = 0; i < t->usagelen; i++)
|
||||
printf("%02x", t->usage[i]);
|
||||
printf(") failed\n");
|
||||
printf("should be: ");
|
||||
for (i = 0; i < 24; i++)
|
||||
printf("%02x", t->dk[i]);
|
||||
printf("\n result was: ");
|
||||
dkp = dk->ks_key;
|
||||
for (i = 0; i < 24; i++)
|
||||
printf("%02x", dkp[i]);
|
||||
printf("\n");
|
||||
}
|
||||
krb5_free_key(dk);
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
#endif
|
||||
@ -5,10 +5,7 @@ KMOD= kgssapi_krb5
|
||||
|
||||
SRCS= krb5_mech.c \
|
||||
kcrypto.c \
|
||||
kcrypto_des.c \
|
||||
kcrypto_des3.c \
|
||||
kcrypto_aes.c \
|
||||
kcrypto_arcfour.c \
|
||||
opt_inet6.h
|
||||
|
||||
SRCS+= kgss_if.h gssd.h
|
||||
|
||||
Loading…
Reference in New Issue
Block a user