annotate ed25519.c @ 1751:3b9b427925a0

Load password and key for client fuzzer. Add fuzz_dump()
author Matt Johnston <matt@ucc.asn.au>
date Tue, 20 Oct 2020 23:34:38 +0800
parents 93dcc97c3f3f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1659
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
1 /*
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
2 * Dropbear - a SSH2 server
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
3 *
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
4 * Copyright (c) 2002,2003 Matt Johnston
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
5 * All rights reserved.
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
6 *
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
8 * of this software and associated documentation files (the "Software"), to deal
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
9 * in the Software without restriction, including without limitation the rights
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
11 * copies of the Software, and to permit persons to whom the Software is
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
12 * furnished to do so, subject to the following conditions:
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
13 *
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
14 * The above copyright notice and this permission notice shall be included in
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
15 * all copies or substantial portions of the Software.
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
16 *
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
23 * SOFTWARE. */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
24
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
25 /* Perform Ed25519 operations on data, including reading keys, signing and
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
26 * verification. */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
27
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
28 #include "includes.h"
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
29 #include "dbutil.h"
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
30 #include "buffer.h"
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
31 #include "ssh.h"
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
32 #include "curve25519.h"
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
33 #include "ed25519.h"
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
34
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
35 #if DROPBEAR_ED25519
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
36
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
37 /* Load a public ed25519 key from a buffer, initialising the values.
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
38 * The key will have the same format as buf_put_ed25519_key.
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
39 * These should be freed with ed25519_key_free.
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
40 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
41 int buf_get_ed25519_pub_key(buffer *buf, dropbear_ed25519_key *key) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
42
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
43 unsigned int len;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
44
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
45 TRACE(("enter buf_get_ed25519_pub_key"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
46 dropbear_assert(key != NULL);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
47
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
48 buf_incrpos(buf, 4+SSH_SIGNKEY_ED25519_LEN); /* int + "ssh-ed25519" */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
49
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
50 len = buf_getint(buf);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
51 if (len != CURVE25519_LEN || buf->len - buf->pos < len) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
52 TRACE(("leave buf_get_ed25519_pub_key: failure"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
53 return DROPBEAR_FAILURE;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
54 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
55
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
56 m_burn(key->priv, CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
57 memcpy(key->pub, buf_getptr(buf, CURVE25519_LEN), CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
58 buf_incrpos(buf, CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
59
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
60 TRACE(("leave buf_get_ed25519_pub_key: success"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
61 return DROPBEAR_SUCCESS;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
62 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
63
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
64 /* Same as buf_get_ed25519_pub_key, but reads private key at the end.
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
65 * Loads a public and private ed25519 key from a buffer
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
66 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
67 int buf_get_ed25519_priv_key(buffer *buf, dropbear_ed25519_key *key) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
68
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
69 unsigned int len;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
70
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
71 TRACE(("enter buf_get_ed25519_priv_key"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
72 dropbear_assert(key != NULL);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
73
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
74 buf_incrpos(buf, 4+SSH_SIGNKEY_ED25519_LEN); /* int + "ssh-ed25519" */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
75
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
76 len = buf_getint(buf);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
77 if (len != CURVE25519_LEN*2 || buf->len - buf->pos < len) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
78 TRACE(("leave buf_get_ed25519_priv_key: failure"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
79 return DROPBEAR_FAILURE;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
80 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
81
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
82 memcpy(key->priv, buf_getptr(buf, CURVE25519_LEN), CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
83 buf_incrpos(buf, CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
84 memcpy(key->pub, buf_getptr(buf, CURVE25519_LEN), CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
85 buf_incrpos(buf, CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
86
1727
93dcc97c3f3f fix trace messages (#105)
Ilya <instenet@gmail.com>
parents: 1707
diff changeset
87 TRACE(("leave buf_get_ed25519_priv_key: success"))
1659
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
88 return DROPBEAR_SUCCESS;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
89 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
90
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
91 /* Clear and free the memory used by a public or private key */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
92 void ed25519_key_free(dropbear_ed25519_key *key) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
93
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
94 TRACE2(("enter ed25519_key_free"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
95
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
96 if (key == NULL) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
97 TRACE2(("leave ed25519_key_free: key == NULL"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
98 return;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
99 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
100 m_burn(key->priv, CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
101 m_free(key);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
102
1727
93dcc97c3f3f fix trace messages (#105)
Ilya <instenet@gmail.com>
parents: 1707
diff changeset
103 TRACE2(("leave ed25519_key_free"))
1659
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
104 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
105
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
106 /* Put the public ed25519 key into the buffer in the required format */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
107 void buf_put_ed25519_pub_key(buffer *buf, const dropbear_ed25519_key *key) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
108
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
109 TRACE(("enter buf_put_ed25519_pub_key"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
110 dropbear_assert(key != NULL);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
111
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
112 buf_putstring(buf, SSH_SIGNKEY_ED25519, SSH_SIGNKEY_ED25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
113 buf_putstring(buf, key->pub, CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
114
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
115 TRACE(("leave buf_put_ed25519_pub_key"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
116 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
117
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
118 /* Put the public and private ed25519 key into the buffer in the required format */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
119 void buf_put_ed25519_priv_key(buffer *buf, const dropbear_ed25519_key *key) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
120
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
121 TRACE(("enter buf_put_ed25519_priv_key"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
122 dropbear_assert(key != NULL);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
123
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
124 buf_putstring(buf, SSH_SIGNKEY_ED25519, SSH_SIGNKEY_ED25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
125 buf_putint(buf, CURVE25519_LEN*2);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
126 buf_putbytes(buf, key->priv, CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
127 buf_putbytes(buf, key->pub, CURVE25519_LEN);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
128
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
129 TRACE(("leave buf_put_ed25519_priv_key"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
130 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
131
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
132 /* Sign the data presented with key, writing the signature contents
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
133 * to the buffer */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
134 void buf_put_ed25519_sign(buffer* buf, const dropbear_ed25519_key *key, const buffer *data_buf) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
135
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
136 unsigned char s[64];
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
137 unsigned long slen = sizeof(s);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
138
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
139 TRACE(("enter buf_put_ed25519_sign"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
140 dropbear_assert(key != NULL);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
141
1707
41a0ff8d5a89 void return types for curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 1659
diff changeset
142 dropbear_ed25519_sign(data_buf->data, data_buf->len, s, &slen, key->priv, key->pub);
41a0ff8d5a89 void return types for curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 1659
diff changeset
143 buf_putstring(buf, SSH_SIGNKEY_ED25519, SSH_SIGNKEY_ED25519_LEN);
41a0ff8d5a89 void return types for curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 1659
diff changeset
144 buf_putstring(buf, s, slen);
1659
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
145
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
146 TRACE(("leave buf_put_ed25519_sign"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
147 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
148
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
149 #if DROPBEAR_SIGNKEY_VERIFY
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
150 /* Verify a signature in buf, made on data by the key given.
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
151 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
152 int buf_ed25519_verify(buffer *buf, const dropbear_ed25519_key *key, const buffer *data_buf) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
153
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
154 int ret = DROPBEAR_FAILURE;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
155 unsigned char *s;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
156 unsigned long slen;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
157
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
158 TRACE(("enter buf_ed25519_verify"))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
159 dropbear_assert(key != NULL);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
160
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
161 slen = buf_getint(buf);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
162 if (slen != 64 || buf->len - buf->pos < slen) {
1727
93dcc97c3f3f fix trace messages (#105)
Ilya <instenet@gmail.com>
parents: 1707
diff changeset
163 TRACE(("leave buf_ed25519_verify: bad size"))
1659
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
164 goto out;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
165 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
166 s = buf_getptr(buf, slen);
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
167
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
168 if (dropbear_ed25519_verify(data_buf->data, data_buf->len,
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
169 s, slen, key->pub) == 0) {
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
170 /* signature is valid */
1727
93dcc97c3f3f fix trace messages (#105)
Ilya <instenet@gmail.com>
parents: 1707
diff changeset
171 TRACE(("leave buf_ed25519_verify: success!"))
1659
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
172 ret = DROPBEAR_SUCCESS;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
173 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
174
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
175 out:
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
176 TRACE(("leave buf_ed25519_verify: ret %d", ret))
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
177 return ret;
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
178 }
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
179
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
180 #endif /* DROPBEAR_SIGNKEY_VERIFY */
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
181
d32bcb5c557d Add Ed25519 support (#91)
Vladislav Grishenko <themiron@users.noreply.github.com>
parents:
diff changeset
182 #endif /* DROPBEAR_ED25519 */