Mercurial > dropbear
annotate rsa.h @ 1306:34e6127ef02e
merge fixes from PuTTY import.c
toint() from misc.c
(revids are from hggit conversion)
changeset: 4620:60a336a6c85c
user: Simon Tatham <[email protected]>
date: Thu Feb 25 20:26:33 2016 +0000
files: import.c
description:
Fix potential segfaults in reading OpenSSH's ASN.1 key format.
The length coming back from ber_read_id_len might have overflowed, so
treat it as potentially negative. Also, while I'm here, accumulate it
inside ber_read_id_len as an unsigned, so as to avoid undefined
behaviour on integer overflow, and toint() it before return.
Thanks to Hanno Böck for spotting this, with the aid of AFL.
(cherry picked from commit 5b7833cd474a24ec098654dcba8cb9509f3bf2c1)
Conflicts:
import.c
(cherry-picker's note: resolving the conflict involved removing an
entire section of the original commit which fixed ECDSA code not
present on this branch)
changeset: 4619:9c6c638d98d8
user: Simon Tatham <[email protected]>
date: Sun Jul 14 10:45:54 2013 +0000
files: import.c ssh.c sshdss.c sshpubk.c sshrsa.c
description:
Tighten up a lot of casts from unsigned to int which are read by one
of the GET_32BIT macros and then used as length fields. Missing bounds
checks against zero have been added, and also I've introduced a helper
function toint() which casts from unsigned to int in such a way as to
avoid C undefined behaviour, since I'm not sure I trust compilers any
more to do the obviously sensible thing.
[originally from svn r9918]
changeset: 4618:3957829f24d3
user: Simon Tatham <[email protected]>
date: Mon Jul 08 22:36:04 2013 +0000
files: import.c sshdss.c sshrsa.c
description:
Add an assortment of extra safety checks.
[originally from svn r9896]
changeset: 4617:2cddee0bce12
user: Jacob Nevins <[email protected]>
date: Wed Dec 07 00:24:45 2005 +0000
files: import.c
description:
Institutional failure to memset() things pointed at rather than pointers.
Things should now be zeroed and memory not leaked. Spotted by Brant Thomsen.
[originally from svn r6476]
changeset: 4616:24ac78a9c71d
user: Simon Tatham <[email protected]>
date: Wed Feb 11 13:58:27 2004 +0000
files: import.c
description:
Jacob's last-minute testing found a couple of trivial bugs in
import.c, and my attempts to reproduce them in cmdgen found another
one there :-)
[originally from svn r3847]
changeset: 4615:088d39a73db0
user: Simon Tatham <[email protected]>
date: Thu Jan 22 18:52:49 2004 +0000
files: import.c
description:
Placate some gcc warnings.
[originally from svn r3761]
changeset: 4614:e4288bad4d93
parent: 1758:108b8924593d
user: Simon Tatham <[email protected]>
date: Fri Oct 03 21:21:23 2003 +0000
files: import.c
description:
My ASN.1 decoder returned wrong IDs for anything above 0x1E! Good
job it's never had to yet. Ahem.
[originally from svn r3479]
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Tue, 12 Jul 2016 23:00:01 +0800 |
parents | 9da3e7b4fe55 |
children | 750ec4ec4cbe |
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 |
1036
deed0571cacc
DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents:
760
diff
changeset
|
25 #ifndef DROPBEAR_RSA_H_ |
deed0571cacc
DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents:
760
diff
changeset
|
26 #define DROPBEAR_RSA_H_ |
4
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 #include "includes.h" |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
29 #include "buffer.h" |
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 #ifdef DROPBEAR_RSA |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
32 |
1274
9da3e7b4fe55
add parentheses to macro
Francois Perrad <francois.perrad@gadz.org>
parents:
1036
diff
changeset
|
33 #define RSA_SIGNATURE_SIZE (4+7+4+40) |
4
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
34 |
586
b50f0107e505
Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents:
584
diff
changeset
|
35 typedef struct { |
4
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
36 |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
37 mp_int* n; |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
38 mp_int* e; |
584 | 39 /* d, p, and q are private parts */ |
4
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
40 mp_int* d; |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
41 mp_int* p; |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
42 mp_int* q; |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
43 |
586
b50f0107e505
Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents:
584
diff
changeset
|
44 } dropbear_rsa_key; |
4
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
45 |
760
f336d232fc63
Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents:
586
diff
changeset
|
46 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
|
47 #ifdef DROPBEAR_SIGNKEY_VERIFY |
760
f336d232fc63
Make _sign and _verify functions take a buffer* rather than void* and int
Matt Johnston <matt@ucc.asn.au>
parents:
586
diff
changeset
|
48 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
|
49 #endif |
586
b50f0107e505
Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents:
584
diff
changeset
|
50 int buf_get_rsa_pub_key(buffer* buf, dropbear_rsa_key *key); |
b50f0107e505
Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents:
584
diff
changeset
|
51 int buf_get_rsa_priv_key(buffer* buf, dropbear_rsa_key *key); |
b50f0107e505
Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents:
584
diff
changeset
|
52 void buf_put_rsa_pub_key(buffer* buf, dropbear_rsa_key *key); |
b50f0107e505
Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents:
584
diff
changeset
|
53 void buf_put_rsa_priv_key(buffer* buf, dropbear_rsa_key *key); |
b50f0107e505
Rename rsa_key to dropbear_rsa_key (and same for dss too) so
Matt Johnston <matt@ucc.asn.au>
parents:
584
diff
changeset
|
54 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
|
55 |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
56 #endif /* DROPBEAR_RSA */ |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
57 |
1036
deed0571cacc
DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents:
760
diff
changeset
|
58 #endif /* DROPBEAR_RSA_H_ */ |