annotate rsa.c @ 1218:b73c078e11e9

Don't allow spaces and don't get confused by -o usesyslogd=yes (option name has another option name as a prefix)
author Matt Johnston <matt@ucc.asn.au>
date Tue, 15 Dec 2015 22:23:42 +0800
parents d7b752525b91
children c6346c63281b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2 * Dropbear - a SSH2 server
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4 * Copyright (c) 2002,2003 Matt Johnston
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5 * All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 * of this software and associated documentation files (the "Software"), to deal
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9 * in the Software without restriction, including without limitation the rights
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 * copies of the Software, and to permit persons to whom the Software is
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12 * furnished to do so, subject to the following conditions:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 * The above copyright notice and this permission notice shall be included in
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15 * all copies or substantial portions of the Software.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
16 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
23 * SOFTWARE. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
24
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
25 /* Perform RSA operations on data, including reading keys, signing and
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
26 * verification.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
27 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
28 * The format is specified in rfc2437, Applied Cryptography or The Handbook of
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
29 * Applied Cryptography detail the general algorithm. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
30
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31 #include "includes.h"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
32 #include "dbutil.h"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
33 #include "bignum.h"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
34 #include "rsa.h"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
35 #include "buffer.h"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
36 #include "ssh.h"
858
220f55d540ae rename random.h to dbrandom.h since some OSes have a system random.h
Matt Johnston <matt@ucc.asn.au>
parents: 807
diff changeset
37 #include "dbrandom.h"
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
38
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
39 #ifdef DROPBEAR_RSA
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
40
586
b50f0107e505 Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents: 378
diff changeset
41 static void rsa_pad_em(dropbear_rsa_key * key,
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
42 buffer *data_buf, mp_int * rsa_em);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
43
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
44 /* Load a public rsa key from a buffer, initialising the values.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
45 * The key will have the same format as buf_put_rsa_key.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
46 * These should be freed with rsa_key_free.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
47 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
586
b50f0107e505 Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents: 378
diff changeset
48 int buf_get_rsa_pub_key(buffer* buf, dropbear_rsa_key *key) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
49
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
50 int ret = DROPBEAR_FAILURE;
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
51 TRACE(("enter buf_get_rsa_pub_key"))
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 216
diff changeset
52 dropbear_assert(key != NULL);
805
724c3e0c8734 Add m_mp_alloc_init_multi() helper
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
53 m_mp_alloc_init_multi(&key->e, &key->n, NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
54 key->d = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
55 key->p = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
56 key->q = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
57
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
58 buf_incrpos(buf, 4+SSH_SIGNKEY_RSA_LEN); /* int + "ssh-rsa" */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
59
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
60 if (buf_getmpint(buf, key->e) == DROPBEAR_FAILURE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
61 || buf_getmpint(buf, key->n) == DROPBEAR_FAILURE) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
62 TRACE(("leave buf_get_rsa_pub_key: failure"))
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
63 goto out;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
64 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
65
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
66 if (mp_count_bits(key->n) < MIN_RSA_KEYLEN) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
67 dropbear_log(LOG_WARNING, "RSA key too short");
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
68 goto out;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
69 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
70
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
71 TRACE(("leave buf_get_rsa_pub_key: success"))
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
72 ret = DROPBEAR_SUCCESS;
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
73 out:
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
74 if (ret == DROPBEAR_FAILURE) {
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
75 m_free(key->e);
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
76 m_free(key->n);
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
77 }
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
78 return ret;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
79 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
80
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
81 /* Same as buf_get_rsa_pub_key, but reads private bits at the end.
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
82 * Loads a private rsa key from a buffer
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
83 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
586
b50f0107e505 Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents: 378
diff changeset
84 int buf_get_rsa_priv_key(buffer* buf, dropbear_rsa_key *key) {
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
85 int ret = DROPBEAR_FAILURE;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
86
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
87 TRACE(("enter buf_get_rsa_priv_key"))
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
88 dropbear_assert(key != NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
89
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
90 if (buf_get_rsa_pub_key(buf, key) == DROPBEAR_FAILURE) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
91 TRACE(("leave buf_get_rsa_priv_key: pub: ret == DROPBEAR_FAILURE"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
92 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
93 }
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
94
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
95 key->d = NULL;
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
96 key->p = NULL;
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
97 key->q = NULL;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
98
807
75509065db53 have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents: 805
diff changeset
99 m_mp_alloc_init_multi(&key->d, NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
100 if (buf_getmpint(buf, key->d) == DROPBEAR_FAILURE) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
101 TRACE(("leave buf_get_rsa_priv_key: d: ret == DROPBEAR_FAILURE"))
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
102 goto out;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
103 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
104
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
105 if (buf->pos == buf->len) {
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
106 /* old Dropbear private keys didn't keep p and q, so we will ignore them*/
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
107 } else {
805
724c3e0c8734 Add m_mp_alloc_init_multi() helper
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
108 m_mp_alloc_init_multi(&key->p, &key->q, NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
109
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
110 if (buf_getmpint(buf, key->p) == DROPBEAR_FAILURE) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
111 TRACE(("leave buf_get_rsa_priv_key: p: ret == DROPBEAR_FAILURE"))
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
112 goto out;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
113 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
114
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
115 if (buf_getmpint(buf, key->q) == DROPBEAR_FAILURE) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
116 TRACE(("leave buf_get_rsa_priv_key: q: ret == DROPBEAR_FAILURE"))
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
117 goto out;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
118 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
119 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
120
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
121 ret = DROPBEAR_SUCCESS;
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
122 out:
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
123 if (ret == DROPBEAR_FAILURE) {
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
124 m_free(key->d);
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
125 m_free(key->p);
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
126 m_free(key->q);
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
127 }
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
128 TRACE(("leave buf_get_rsa_priv_key"))
370
9a789fc03f40 Make sure that we clean up key parts if we fail during reading a rsa key
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
129 return ret;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
130 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
131
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
132
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
133 /* Clear and free the memory used by a public or private key */
586
b50f0107e505 Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents: 378
diff changeset
134 void rsa_key_free(dropbear_rsa_key *key) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
135
731
9a5438271556 Move the more verbose TRACE() statements into TRACE2()
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
136 TRACE2(("enter rsa_key_free"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
137
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
138 if (key == NULL) {
731
9a5438271556 Move the more verbose TRACE() statements into TRACE2()
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
139 TRACE2(("leave rsa_key_free: key == NULL"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
140 return;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
141 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
142 if (key->d) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
143 mp_clear(key->d);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
144 m_free(key->d);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
145 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
146 if (key->e) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
147 mp_clear(key->e);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
148 m_free(key->e);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
149 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
150 if (key->n) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
151 mp_clear(key->n);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
152 m_free(key->n);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
153 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
154 if (key->p) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
155 mp_clear(key->p);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
156 m_free(key->p);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
157 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
158 if (key->q) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
159 mp_clear(key->q);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
160 m_free(key->q);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
161 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
162 m_free(key);
731
9a5438271556 Move the more verbose TRACE() statements into TRACE2()
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
163 TRACE2(("leave rsa_key_free"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
164 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
165
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
166 /* Put the public rsa key into the buffer in the required format:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
167 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
168 * string "ssh-rsa"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
169 * mp_int e
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
170 * mp_int n
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
171 */
586
b50f0107e505 Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents: 378
diff changeset
172 void buf_put_rsa_pub_key(buffer* buf, dropbear_rsa_key *key) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
173
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
174 TRACE(("enter buf_put_rsa_pub_key"))
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 216
diff changeset
175 dropbear_assert(key != NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
176
1123
d7b752525b91 buf_getstring and buf_putstring now use non-unsigned char*
Matt Johnston <matt@ucc.asn.au>
parents: 1094
diff changeset
177 buf_putstring(buf, SSH_SIGNKEY_RSA, SSH_SIGNKEY_RSA_LEN);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
178 buf_putmpint(buf, key->e);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
179 buf_putmpint(buf, key->n);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
180
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
181 TRACE(("leave buf_put_rsa_pub_key"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
182
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
183 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
184
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
185 /* Same as buf_put_rsa_pub_key, but with the private "x" key appended */
586
b50f0107e505 Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents: 378
diff changeset
186 void buf_put_rsa_priv_key(buffer* buf, dropbear_rsa_key *key) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
187
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
188 TRACE(("enter buf_put_rsa_priv_key"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
189
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 216
diff changeset
190 dropbear_assert(key != NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
191 buf_put_rsa_pub_key(buf, key);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
192 buf_putmpint(buf, key->d);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
193
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
194 /* new versions have p and q, old versions don't */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
195 if (key->p) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
196 buf_putmpint(buf, key->p);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
197 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
198 if (key->q) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
199 buf_putmpint(buf, key->q);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
200 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
201
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
202
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
203 TRACE(("leave buf_put_rsa_priv_key"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
204
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
205 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
206
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
207 #ifdef DROPBEAR_SIGNKEY_VERIFY
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
208 /* Verify a signature in buf, made on data by the key given.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
209 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
210 int buf_rsa_verify(buffer * buf, dropbear_rsa_key *key, buffer *data_buf) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
211 unsigned int slen;
84
29a5c7c62350 default initialisers for mp_ints
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
212 DEF_MP_INT(rsa_s);
29a5c7c62350 default initialisers for mp_ints
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
213 DEF_MP_INT(rsa_mdash);
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
214 DEF_MP_INT(rsa_em);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
215 int ret = DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
216
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
217 TRACE(("enter buf_rsa_verify"))
34
e2a1eaa19f22 Client mostly works up to password auth
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
218
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 216
diff changeset
219 dropbear_assert(key != NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
220
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
221 m_mp_init_multi(&rsa_mdash, &rsa_s, &rsa_em, NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
222
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
223 slen = buf_getint(buf);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
224 if (slen != (unsigned int)mp_unsigned_bin_size(key->n)) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
225 TRACE(("bad size"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
226 goto out;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
227 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
228
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
229 if (mp_read_unsigned_bin(&rsa_s, buf_getptr(buf, buf->len - buf->pos),
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
230 buf->len - buf->pos) != MP_OKAY) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
231 TRACE(("failed reading rsa_s"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
232 goto out;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
233 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
234
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
235 /* check that s <= n-1 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
236 if (mp_cmp(&rsa_s, key->n) != MP_LT) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
237 TRACE(("s > n-1"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
238 goto out;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
239 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
240
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
241 /* create the magic PKCS padded value */
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
242 rsa_pad_em(key, data_buf, &rsa_em);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
243
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
244 if (mp_exptmod(&rsa_s, key->e, key->n, &rsa_mdash) != MP_OKAY) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
245 TRACE(("failed exptmod rsa_s"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
246 goto out;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
247 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
248
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
249 if (mp_cmp(&rsa_em, &rsa_mdash) == MP_EQ) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
250 /* signature is valid */
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
251 TRACE(("success!"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
252 ret = DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
253 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
254
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
255 out:
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
256 mp_clear_multi(&rsa_mdash, &rsa_s, &rsa_em, NULL);
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
257 TRACE(("leave buf_rsa_verify: ret %d", ret))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
258 return ret;
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
259 }
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
260
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
261 #endif /* DROPBEAR_SIGNKEY_VERIFY */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
262
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
263 /* Sign the data presented with key, writing the signature contents
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
264 * to the buffer */
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
265 void buf_put_rsa_sign(buffer* buf, dropbear_rsa_key *key, buffer *data_buf) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
266 unsigned int nsize, ssize;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
267 unsigned int i;
84
29a5c7c62350 default initialisers for mp_ints
Matt Johnston <matt@ucc.asn.au>
parents: 70
diff changeset
268 DEF_MP_INT(rsa_s);
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
269 DEF_MP_INT(rsa_tmp1);
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
270 DEF_MP_INT(rsa_tmp2);
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
271 DEF_MP_INT(rsa_tmp3);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
272
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
273 TRACE(("enter buf_put_rsa_sign"))
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 216
diff changeset
274 dropbear_assert(key != NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
275
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
276 m_mp_init_multi(&rsa_s, &rsa_tmp1, &rsa_tmp2, &rsa_tmp3, NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
277
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
278 rsa_pad_em(key, data_buf, &rsa_tmp1);
70
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents: 34
diff changeset
279
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
280 /* the actual signing of the padded data */
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
281
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
282 #ifdef RSA_BLINDING
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
283
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
284 /* With blinding, s = (r^(-1))((em)*r^e)^d mod n */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
285
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
286 /* generate the r blinding value */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
287 /* rsa_tmp2 is r */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
288 gen_random_mpint(key->n, &rsa_tmp2);
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
289
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
290 /* rsa_tmp1 is em */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
291 /* em' = em * r^e mod n */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
292
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
293 /* rsa_s used as a temp var*/
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
294 if (mp_exptmod(&rsa_tmp2, key->e, key->n, &rsa_s) != MP_OKAY) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
295 dropbear_exit("RSA error");
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
296 }
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
297 if (mp_invmod(&rsa_tmp2, key->n, &rsa_tmp3) != MP_OKAY) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
298 dropbear_exit("RSA error");
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
299 }
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
300 if (mp_mulmod(&rsa_tmp1, &rsa_s, key->n, &rsa_tmp2) != MP_OKAY) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
301 dropbear_exit("RSA error");
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
302 }
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
303
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
304 /* rsa_tmp2 is em' */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
305 /* s' = (em')^d mod n */
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
306 if (mp_exptmod(&rsa_tmp2, key->d, key->n, &rsa_tmp1) != MP_OKAY) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
307 dropbear_exit("RSA error");
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
308 }
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
309
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
310 /* rsa_tmp1 is s' */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
311 /* rsa_tmp3 is r^(-1) mod n */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
312 /* s = (s')r^(-1) mod n */
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
313 if (mp_mulmod(&rsa_tmp1, &rsa_tmp3, key->n, &rsa_s) != MP_OKAY) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
314 dropbear_exit("RSA error");
340
454a34b2dfd1 Fixes from Erik Hovland:
Matt Johnston <matt@ucc.asn.au>
parents: 276
diff changeset
315 }
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
316
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
317 #else
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
318
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
319 /* s = em^d mod n */
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
320 /* rsa_tmp1 is em */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
321 if (mp_exptmod(&rsa_tmp1, key->d, key->n, &rsa_s) != MP_OKAY) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
322 dropbear_exit("RSA error");
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
323 }
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
324
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
325 #endif /* RSA_BLINDING */
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
326
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
327 mp_clear_multi(&rsa_tmp1, &rsa_tmp2, &rsa_tmp3, NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
328
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
329 /* create the signature to return */
1123
d7b752525b91 buf_getstring and buf_putstring now use non-unsigned char*
Matt Johnston <matt@ucc.asn.au>
parents: 1094
diff changeset
330 buf_putstring(buf, SSH_SIGNKEY_RSA, SSH_SIGNKEY_RSA_LEN);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
331
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
332 nsize = mp_unsigned_bin_size(key->n);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
333
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
334 /* string rsa_signature_blob length */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
335 buf_putint(buf, nsize);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
336 /* pad out s to same length as n */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
337 ssize = mp_unsigned_bin_size(&rsa_s);
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 216
diff changeset
338 dropbear_assert(ssize <= nsize);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
339 for (i = 0; i < nsize-ssize; i++) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
340 buf_putbyte(buf, 0x00);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
341 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
342
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
343 if (mp_to_unsigned_bin(&rsa_s, buf_getwriteptr(buf, ssize)) != MP_OKAY) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 586
diff changeset
344 dropbear_exit("RSA error");
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
345 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
346 buf_incrwritepos(buf, ssize);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
347 mp_clear(&rsa_s);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
348
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
349 #if defined(DEBUG_RSA) && defined(DEBUG_TRACE)
907
4a74c58e11fc Make some debug info conditional
Matt Johnston <matt@ucc.asn.au>
parents: 858
diff changeset
350 if (!debug_trace) {
4a74c58e11fc Make some debug info conditional
Matt Johnston <matt@ucc.asn.au>
parents: 858
diff changeset
351 printhex("RSA sig", buf->data, buf->len);
4a74c58e11fc Make some debug info conditional
Matt Johnston <matt@ucc.asn.au>
parents: 858
diff changeset
352 }
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
353 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
354
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
355
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 84
diff changeset
356 TRACE(("leave buf_put_rsa_sign"))
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
357 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
358
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
359 /* Creates the message value as expected by PKCS, see rfc2437 etc */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
360 /* format to be padded to is:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
361 * EM = 01 | FF* | 00 | prefix | hash
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
362 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
363 * where FF is repeated enough times to make EM one byte
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
364 * shorter than the size of key->n
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
365 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
366 * prefix is the ASN1 designator prefix,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
367 * hex 30 21 30 09 06 05 2B 0E 03 02 1A 05 00 04 14
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
368 *
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
369 * rsa_em must be a pointer to an initialised mp_int.
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
370 */
586
b50f0107e505 Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents: 378
diff changeset
371 static void rsa_pad_em(dropbear_rsa_key * key,
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
372 buffer *data_buf, mp_int * rsa_em) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
373
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
374 /* ASN1 designator (including the 0x00 preceding) */
198
65585699d980 * add a "label" argument to printhex()
Matt Johnston <matt@ucc.asn.au>
parents: 188
diff changeset
375 const unsigned char rsa_asn1_magic[] =
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
376 {0x00, 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
377 0x0e, 0x03, 0x02, 0x1a, 0x05, 0x00, 0x04, 0x14};
198
65585699d980 * add a "label" argument to printhex()
Matt Johnston <matt@ucc.asn.au>
parents: 188
diff changeset
378 const unsigned int RSA_ASN1_MAGIC_LEN = 16;
65585699d980 * add a "label" argument to printhex()
Matt Johnston <matt@ucc.asn.au>
parents: 188
diff changeset
379
70
b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree
Matt Johnston <matt@ucc.asn.au>
parents: 34
diff changeset
380 buffer * rsa_EM = NULL;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
381 hash_state hs;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
382 unsigned int nsize;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
383
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 216
diff changeset
384 dropbear_assert(key != NULL);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
385 nsize = mp_unsigned_bin_size(key->n);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
386
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
387 rsa_EM = buf_new(nsize-1);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
388 /* type byte */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
389 buf_putbyte(rsa_EM, 0x01);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
390 /* Padding with 0xFF bytes */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
391 while(rsa_EM->pos != rsa_EM->size - RSA_ASN1_MAGIC_LEN - SHA1_HASH_SIZE) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
392 buf_putbyte(rsa_EM, 0xff);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
393 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
394 /* Magic ASN1 stuff */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
395 memcpy(buf_getwriteptr(rsa_EM, RSA_ASN1_MAGIC_LEN),
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
396 rsa_asn1_magic, RSA_ASN1_MAGIC_LEN);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
397 buf_incrwritepos(rsa_EM, RSA_ASN1_MAGIC_LEN);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
398
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
399 /* The hash of the data */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
400 sha1_init(&hs);
760
f336d232fc63 Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
401 sha1_process(&hs, data_buf->data, data_buf->len);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
402 sha1_done(&hs, buf_getwriteptr(rsa_EM, SHA1_HASH_SIZE));
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
403 buf_incrwritepos(rsa_EM, SHA1_HASH_SIZE);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
404
241
c5d3ef11155f * use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents: 216
diff changeset
405 dropbear_assert(rsa_EM->pos == rsa_EM->size);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
406
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
407 /* Create the mp_int from the encoded bytes */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
408 buf_setpos(rsa_EM, 0);
188
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
409 bytes_to_mp(rsa_em, buf_getptr(rsa_EM, rsa_EM->size),
c9483550701b - refactored random mp_int generation and byte->mp_int code
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
410 rsa_EM->size);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
411 buf_free(rsa_EM);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
412 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
413
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
414 #endif /* DROPBEAR_RSA */