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494 Commits

Author SHA1 Message Date
George Kadianakis
edec9409e8 Copy/Paste Jake's stuff. 
This commit copies parts of Jake's
f3bb6846975193d9a6649c31f94bda47e4014070 commit verbatim to the
current master.
 2011-11-24 22:06:50 +01:00
Andrea Gelmini
72d4d762c1 Remove some duplicate includes 2011-11-03 10:23:33 -04:00
Nick Mathewson
beb9097bed Merge remote-tracking branch 'origin/maint-0.2.2' 2011-10-26 11:08:19 -04:00
Nick Mathewson
445f947890 Remove a no-longer-relevant comment 2011-10-10 23:14:17 -04:00
Nick Mathewson
fdbb9cdf74 Add a sha256 hmac function, with tests 2011-10-10 23:14:09 -04:00
Nick Mathewson
dcf69a9e12 New function to get all digests of a public key 2011-10-10 23:14:02 -04:00
Nick Mathewson
246afc1b1b Make internal error check for unrecognized digest algorithm more robust 
Fixes Coverity CID 479.
 2011-10-06 14:13:09 -04:00
Nick Mathewson
44cfa53873 Make WIN32_WINNT defines conditional 
Requested by Gisle Vanem on tor-dev.  I'm not quite sure this is the
right solution, but it's probably harmless.
 2011-07-15 10:03:59 -04:00
Nick Mathewson
8cd5a3c186 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-06-06 16:20:22 -04:00
Nick Mathewson
5afab5ca19 Check maximum properly in crypto_rand_int() 
George Kadianakis notes that if you give crypto_rand_int() a value
above INT_MAX, it can return a negative number, which is not what
the documentation would imply.

The simple solution is to assert that the input is in [1,INT_MAX+1].
If in the future we need a random-value function that can return
values up to UINT_MAX, we can add one.

Fixes bug 3306; bugfix on 0.2.2pre14.
 2011-06-06 16:18:06 -04:00
Nick Mathewson
12f9c91c06 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-06-03 11:36:21 -04:00
Nick Mathewson
bbf2fee8ff Reject 128-byte keys that are not 1024-bit 
When we added the check for key size, we required that the keys be
128 bytes.  But RSA_size (which defers to BN_num_bytes) will return
128 for keys of length 1017..1024.  This patch adds a new
crypto_pk_num_bits() that returns the actual number of significant
bits in the modulus, and uses that to enforce key sizes.

Also, credit the original bug3318 in the changes file.
 2011-06-03 11:31:19 -04:00
Nick Mathewson
03ccce6d77 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-05-16 14:50:53 -04:00
Nick Mathewson
e908e3a332 Merge remote-tracking branch 'origin/maint-0.2.1' into maint-0.2.2 
Fixed trivial conflict due to headers moving into their own .h files
from or.h.

Conflicts:
	src/or/or.h
 2011-05-16 14:49:55 -04:00
Nick Mathewson
4a22046c86 squash! Add crypto_pk_check_key_public_exponent function 
Rename crypto_pk_check_key_public_exponent to crypto_pk_public_exponent_ok:
it's nice to name predicates s.t. you can tell how to interpret true
and false.
 2011-05-16 14:45:06 -04:00
Robert Ransom
d2629f78a0 Add crypto_pk_check_key_public_exponent function 2011-05-16 14:07:34 -04:00
Nick Mathewson
9fba014e3f Merge remote-tracking branch 'public/bug3122_memcmp_022' into bug3122_memcmp_023 
Conflicts in various places, mainly node-related.  Resolved them in
favor of HEAD, with copying of tor_mem* operations from bug3122_memcmp_022.

	src/common/Makefile.am
	src/or/circuitlist.c
	src/or/connection_edge.c
	src/or/directory.c
	src/or/microdesc.c
	src/or/networkstatus.c
	src/or/router.c
	src/or/routerlist.c
	src/test/test_util.c
 2011-05-11 16:39:45 -04:00
Nick Mathewson
44ad734573 Merge remote-tracking branch 'public/3122_memcmp_squashed' into bug3122_memcmp_022 
Conflicts throughout.  All resolved in favor of taking HEAD and
adding tor_mem* or fast_mem* ops as appropriate.

	src/common/Makefile.am
	src/or/circuitbuild.c
	src/or/directory.c
	src/or/dirserv.c
	src/or/dirvote.c
	src/or/networkstatus.c
	src/or/rendclient.c
	src/or/rendservice.c
	src/or/router.c
	src/or/routerlist.c
	src/or/routerparse.c
	src/or/test.c
 2011-05-11 16:24:29 -04:00
Nick Mathewson
59f9097d5c Hand-conversion and audit phase of memcmp transition 
Here I looked at the results of the automated conversion and cleaned
them up as follows:

   If there was a tor_memcmp or tor_memeq that was in fact "safe"[*] I
   changed it to a fast_memcmp or fast_memeq.

   Otherwise if there was a tor_memcmp that could turn into a
   tor_memneq or tor_memeq, I converted it.

This wants close attention.

[*] I'm erring on the side of caution here, and leaving some things
as tor_memcmp that could in my opinion use the data-dependent
fast_memcmp variant.
 2011-05-11 16:12:51 -04:00
Nick Mathewson
db7b2a33ee Automated conversion of memcmp to tor_memcmp/tor_mem[n]eq 
This commit is _exactly_ the result of

perl -i -pe 's/\bmemcmp\(/tor_memcmp\(/g' src/*/*.[ch]
perl -i -pe 's/\!\s*tor_memcmp\(/tor_memeq\(/g' src/*/*.[ch]
perl -i -pe 's/0\s*==\s*tor_memcmp\(/tor_memeq\(/g' src/*/*.[ch]
perl -i -pe 's/0\s*!=\s*tor_memcmp\(/tor_memneq\(/g' src/*/*.[ch]
git checkout src/common/di_ops.[ch]
git checkout src/or/test.c
git checkout src/common/test.h
 2011-05-11 16:12:51 -04:00
Nick Mathewson
26456d3354 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-04-27 22:14:54 -04:00
Nick Mathewson
0130e7c9d2 Merge remote-tracking branch 'origin/maint-0.2.1' into maint-0.2.2 
Conflicts:
	src/common/torint.h
 2011-04-27 22:14:28 -04:00
Nick Mathewson
43ffd023e9 Make SIZE_T_CEILING unsigned; add a signed SSIZE_T_CEILING 
None of the comparisons were _broken_ previously, but avoiding
signed/unsigned comparisons makes everybody happier.

Fixes bug2475.
 2011-04-26 13:03:58 -04:00
Nick Mathewson
b1b6552251 Merge remote-tracking branch 'origin/maint-0.2.2' 
Conflicts:
	src/common/crypto.c
 2011-03-16 17:16:54 -04:00
Nick Mathewson
3310dd2358 Clean up whitespace 2011-03-16 17:11:30 -04:00
Nick Mathewson
57b954293e Merge remote-tracking branch 'origin/maint-0.2.2' 
Trivial Conflicts in
	src/common/crypto.c
	src/or/main.h
	src/or/or.h
 2011-03-16 17:09:32 -04:00
Nick Mathewson
6617822b84 Doxygen documentation for about 100 things that didn't have any 
About 860 doxygen-less things remain in 0.2.2
 2011-03-16 17:05:37 -04:00
Nick Mathewson
50c259d763 Make the DH parameter we use for TLS match the one from Apache's mod_ssl 
Our regular DH parameters that we use for circuit and rendezvous
crypto are unchanged.  This is yet another small step on the path of
protocol fingerprinting resistance.

(Backport from 0.2.2's 5ed73e3807)
 2011-02-10 15:55:06 -05:00
Nick Mathewson
912b76a1bf Merge remote branch 'origin/maint-0.2.2' 2011-02-03 13:56:37 -05:00
Nick Mathewson
e80bdfb4a0 Correctly detect BIO_new failures 
This bug was noticed by cypherpunks; fixes bug 2378.

Bugfix on svn commit r110.
 2011-01-25 18:26:49 -05:00
Nick Mathewson
bfde636aad Always treat failure to allocate an RSA key as an unrecoverable allocation error 2011-01-25 18:19:09 -05:00
Nick Mathewson
c939c953ae Remove an unused function in crypto.c 2011-01-25 18:07:02 -05:00
Nick Mathewson
aaa5737a2e Merge remote branch 'origin/maint-0.2.2' 2011-01-24 17:51:52 -05:00
Nick Mathewson
5ed73e3807 Make the DH parameter we use for TLS match the one from Apache's mod_ssl 
Our regular DH parameters that we use for circuit and rendezvous
crypto are unchanged.  This is yet another small step on the path of
protocol fingerprinting resistance.
 2011-01-24 16:50:11 -05:00
Nick Mathewson
07888ed8e4 Merge remote branch 'origin/maint-0.2.2' 2011-01-15 14:17:59 -05:00
Nick Mathewson
a7790d48af Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2 2011-01-15 14:15:19 -05:00
Nick Mathewson
9b09627edd Zero out some more key data before freeing it 
Found by cypherpunks; fixes bug 2384.
 2011-01-15 14:10:52 -05:00
Nick Mathewson
1758ef51de Merge remote branch 'origin/maint-0.2.2' 2011-01-15 13:26:02 -05:00
Nick Mathewson
1393985768 Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2 
Conflicts:
	src/or/routerparse.c
	src/or/test.c
 2011-01-15 13:25:13 -05:00
Nick Mathewson
b97b0efec8 Merge branch 'bug2352_obsize' into maint-0.2.1 2011-01-15 13:15:06 -05:00
Robert Ransom
7ea674e0e0 Remove some unnecessary occurrences of +1. 
I dug through the OpenSSL source and verified that RSA_private_decrypt will
not write more than RSA_size(key) bytes to its output buffer.
 2011-01-15 13:11:44 -05:00
Nick Mathewson
ed87738ede Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2 
Conflicts:
	src/or/config.c
	src/or/networkstatus.c
	src/or/rendcommon.c
	src/or/routerparse.c
	src/or/test.c
 2011-01-15 12:02:55 -05:00
Nick Mathewson
115782bdbe Fix a heap overflow found by debuger, and make it harder to make that mistake again 
Our public key functions assumed that they were always writing into a
large enough buffer.  In one case, they weren't.

(Incorporates fixes from sebastian)
 2011-01-15 11:49:25 -05:00
Nick Mathewson
729f404efe Add logic in routerparse to not read overlong private keys 
I am not at all sure that it is possible to trigger a bug here,
but better safe than sorry.
 2011-01-10 12:07:34 -05:00
Nick Mathewson
240fa42aac Fix size_t vs unsigned comparison too 2011-01-05 12:49:02 -05:00
Nick Mathewson
0222228d64 Fix up size and sign issues in base32 code 
Fixes bug 2331.
 2011-01-03 16:16:53 -05:00
Nick Mathewson
bb5f99d4df Merge remote branch 'sebastian/bug2314' into maint-0.2.2 2011-01-03 12:47:14 -05:00
Nick Mathewson
f1de329e78 Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2 
Conflicts:
	src/common/test.h
	src/or/test.c
 2011-01-03 11:51:17 -05:00
Nick Mathewson
1a07348a50 Bump copyright statements to 2011 2011-01-03 11:50:39 -05:00
Sebastian Hahn
9ecf133686 Fix compile wanrings revealed by gcc 4.5 on mingw 2010-12-27 09:47:41 +01:00
Nick Mathewson
b5e293afe6 Merge remote branch fix_security_bug_021 into fix_security_bug_022 
Conflicts:
	src/common/memarea.c
	src/or/or.h
	src/or/rendclient.c
 2010-12-15 22:48:23 -05:00
Nick Mathewson
785086cfba Have all of our allocation functions and a few others check for underflow 
It's all too easy in C to convert an unsigned value to a signed one,
which will (on all modern computers) give you a huge signed value.  If
you have a size_t value of size greater than SSIZE_T_MAX, that is way
likelier to be an underflow than it is to be an actual request for
more than 2gb of memory in one go.  (There's nothing in Tor that
should be trying to allocate >2gb chunks.)
 2010-12-13 18:40:21 -05:00
Nick Mathewson
89e97bdf94 Add wrappers function for libc random() 
On windows, it's called something different.
 2010-11-29 16:00:47 -05:00
Sebastian Hahn
213139f887 Properly refcount client_identity_key 
In a2bb0bf we started using a separate client identity key. When we are
in "public server mode" (that means not a bridge) we will use the same
key. Reusing the key without doing the proper refcounting leads to a
segfault on cleanup during shutdown. Fix that.

Also introduce an assert that triggers if our refcount falls below 0.
That should never happen.
 2010-10-26 18:22:04 +02:00
Nick Mathewson
14bc4dcc22 Rename log.h to torlog.h 
This should make us conflict less with system files named "log.h".
Yes, we shouldn't have been conflicting with those anyway, but some
people's compilers act very oddly.

The actual change was done with one "git mv", by editing
Makefile.am, and running
   find . -name '*.[ch]' | xargs perl -i -pe 'if (/^#include.*\Wlog.h/) {s/log.h/torlog.h/; }'
 2010-07-09 22:05:38 -04:00
Nick Mathewson
485cab869d Merge remote branch 'public/rand_double2' 2010-06-29 18:57:59 -04:00
Nick Mathewson
b111a7cd9c Make cbt_generate_sample use crypto_rand_double() 
Possible workaround for bug 1139, if anybody cares.
 2010-06-25 21:33:22 -04:00
Nick Mathewson
8e1bf98f4a Log an error if openssl fails to copy a key for us 
This should never happen unless openssl is buggy or some of our
assumptions are deeply wrong, but one of those might have been the
cause of the not-yet-reproducible bug 1209.  If it ever happens again,
let's get some info we can use.
 2010-06-22 22:20:52 -04:00
Nick Mathewson
006e2e8620 Add a function to return a double in range [0,1). 2010-06-22 21:30:26 -04:00
Nick Mathewson
b006e3279f Merge remote branch 'origin/maint-0.2.1' 
Conflicts:
	src/common/test.h
	src/or/test.c
 2010-02-27 17:16:31 -05:00
Nick Mathewson
c3e63483b2 Update Tor Project copyright years 2010-02-27 17:14:21 -05:00
Nick Mathewson
616cbb31c7 Merge commit 'origin/maint-0.2.1' 2009-12-15 17:11:40 -05:00
Nick Mathewson
1c87a27574 Fix bug 1173: remove an assert(unsigned >= 0). 2009-12-15 15:51:59 -05:00
Nick Mathewson
9e6225ae16 Merge commit 'sebastian/coverity' 2009-12-12 02:10:19 -05:00
Sebastian Hahn
3807db001d *_free functions now accept NULL 
Some *_free functions threw asserts when passed NULL. Now all of them
accept NULL as input and perform no action when called that way.

This gains us consistence for our free functions, and allows some
code simplifications where an explicit null check is no longer necessary.
 2009-12-12 03:29:44 +01:00
Sebastian Hahn
70abd843fd crypto_cipher_set_key cannot fail 
In 5e4d53d535 we made it so that
crypto_cipher_set_key cannot fail. The call will now
always succeed, to returning a boolean for success/failure makes
no sense.
 2009-10-27 04:31:23 +01:00
Nick Mathewson
5e4d53d535 Remove checks for array existence. (CID 410..415) 
In C, the code "char x[10]; if (x) {...}" always takes the true branch of
the if statement.  Coverity notices this now.

In some cases, we were testing arrays to make sure that an operation
we wanted to do would suceed.  Those cases are now always-true.

In some cases, we were testing arrays to see if something was _set_.
Those caes are now tests for strlen(s), or tests for
!tor_mem_is_zero(d,len).
 2009-10-26 22:40:41 -04:00
Karsten Loesing
d2b4b49ff0 Reduce log level for someone else sending us weak DH keys. 
See task 1114. The most plausible explanation for someone sending us weak
DH keys is that they experiment with their Tor code or implement a new Tor
client. Usually, we don't care about such events, especially not on warn
level. If we really care about someone not following the Tor protocol, we
can set ProtocolWarnings to 1.
 2009-10-25 23:47:05 -07:00
Nick Mathewson
200c39b66c Document the microdescriptor code better. 2009-10-18 18:46:12 -04:00
Nick Mathewson
5576a3a094 Parse detached signature documents with multiple flavors and algorithms. 2009-10-15 15:17:13 -04:00
Nick Mathewson
3b2fc659a8 Refactor consensus signature storage for multiple digests and flavors. 
This patch introduces a new type called document_signature_t to represent the
signature of a consensus document.  Now, each consensus document can have up
to one document signature per voter per digest algorithm.  Also, each
detached-signatures document can have up to one signature per <voter,
algorithm, flavor>.
 2009-10-15 15:17:13 -04:00
Nick Mathewson
8d41e6c471 Support for encoding and decoding 256-bit digests in base64 2009-10-15 15:17:12 -04:00
Nick Mathewson
cfba9c01bf Alter keygen function to generate keys of different lengths. 2009-09-29 00:53:25 -04:00
Nathan Freitas
76d26ae52d Disable OpenSSL engines when building for Android. 
Apparently the Android developers dumped OpenSSL's support for hardware
acceleration in order to save some memory, so you can't build programs using
engines on Android.

[Patch revised by nickm]
 2009-09-29 00:53:10 -04:00
Nathan Freitas
8c585cce39 Include util.h and log.h as relative paths. 
This shouldn't be necessary, but apparently the Android cross-compiler
doesn't respect -I as well as it should.  (-I is supposed to add to the
*front* of the search path.  Android's gcc wrapper apparently likes to add to
the end.  This is broken, but we need to work around it.)
 2009-09-29 00:52:52 -04:00
Nick Mathewson
5da3b45fdc Make crypto_digest_get_digest nondestructive again. 
Fixes bug in f57883a39.
 2009-08-20 12:03:32 -04:00
Nick Mathewson
d0c212995a Add a SHA256 implementation for platforms that lack it. 
(This would be everywhere running OpenSSL 0.9.7x and earlier, including
all current Macintosh users.)

The code is based on Tom St Denis's LibTomCrypt implementation,
modified to be way less general and use Tor's existing facilities.  I
picked this one because it was pretty fast and pretty free, and
because Python uses it too.
 2009-08-20 01:47:13 -04:00
Nick Mathewson
f57883a39e Add basic support for SHA256. 
This adds an openssl 0.9.8 dependency.  Let's see if anybody cares.
 2009-08-19 19:43:54 -04:00
Nick Mathewson
e84ddead34 Merge branch 'hardware_accel_improvements' 2009-05-31 13:36:50 -04:00
Nick Mathewson
260de44313 Fixes to spelling fixes. Thanks, Roger! 2009-05-28 12:22:48 -04:00
Nick Mathewson
ec7e054668 Spell-check Tor. 2009-05-27 17:55:51 -04:00
Martin Peck
7703b887f5 Add support for dynamic OpenSSL hardware crypto acceleration engines. 2009-05-23 16:42:44 -07:00
Karsten Loesing
9b32e8c141 Update copyright to 2009. 2009-05-04 11:28:27 -04:00
Karsten Loesing
4ebcc4da34 Update copyright to 2009. 2009-05-02 22:00:54 +02:00
Nick Mathewson
8ebceeb352 Make sure that even in the weird fiddly paths that lead to init_keys, 
crypto_global_init gets called.  Also have it be crypto_global_init
that calls crypto_seed_rng, so we are not dependent on OpenSSL's
RAND_poll in these fiddly cases.

Should fix bug 907.  Bugfix on 0.0.9pre6.  Backport candidate.

svn:r18210
 2009-01-21 15:38:39 +00:00
Nick Mathewson
c4b8fef362 Remove svn $Id$s from our source, and remove tor --version --version. 
The subversion $Id$ fields made every commit force a rebuild of
whatever file got committed.  They were not actually useful for
telling the version of Tor files in the wild.

svn:r17867
 2009-01-04 00:35:51 +00:00
Nick Mathewson
b0a8ecd193 Use RSA_generate_key_ex where available. 
svn:r17804
 2008-12-29 02:20:57 +00:00
Nick Mathewson
b4d387c28b Make freelist_len in memarea.c static; document a few variables. 
svn:r17741
 2008-12-22 19:14:08 +00:00
Nick Mathewson
1e5f457461 Fix most DOCDOCs remaining and/or added by redox. 
svn:r17734
 2008-12-22 17:53:04 +00:00
Nick Mathewson
1725c0c8a5 Add DOCDOC comments for all undocumented functions. Add missing *s to other comments so that they will get recognized as doxygen. 
svn:r17729
 2008-12-22 14:56:28 +00:00
Nick Mathewson
6c6b0283cb Ben confirms that the MUST in rfc2631 is only for compatibility with X9.42, and isn't actually a security thing. 
svn:r17685
 2008-12-18 16:11:16 +00:00
Nick Mathewson
cebdf93949 Fix bug 889: share deep-copied keys between threads to avoid races in reference counts. Bugfix on 0.1.0.1-rc. 
svn:r17672
 2008-12-18 05:28:27 +00:00
Nick Mathewson
f43bcdc063 Use ctags and a python script to find identifiers that are never used anywhere, and remove the ones that we really want gone. 
svn:r17651
 2008-12-17 17:20:42 +00:00
Nick Mathewson
4d94e061c7 Clean up some redundant stuff in crypto_dh_new(). 
svn:r16778
 2008-09-05 20:18:22 +00:00
Nick Mathewson
22259a0877 The first of Karsten's proposal 121 patches: configure and maintain client authorization data. Tweaked a bit: see comments on or-dev. 
svn:r16475
 2008-08-08 14:36:11 +00:00
Nick Mathewson
3ec25c2410 r16587@tombo: nickm | 2008-06-28 00:13:40 -0400 
fix for bug 704; found by sjmurdoch.  Windows and recent openssl both want to define OCSP_RESPONSE; do not let them.


svn:r15533
 2008-06-28 04:16:17 +00:00
Nick Mathewson
d4ed91c672 Set dynamic-locking callbacks in openssl. These can be more efficient when openssl uses them. 
svn:r15222
 2008-06-13 16:35:12 +00:00
Nick Mathewson
ae2d022f0c Remov unused macro in crypto.c 
svn:r14950
 2008-06-04 18:41:08 +00:00
Nick Mathewson
b7a80920e2 r15558@tombo: nickm | 2008-05-09 04:35:12 -0400 
New (temporary) tool to dump the modulus of a key.  May help with a project of weasel's.


svn:r14580
 2008-05-09 08:35:38 +00:00
Nick Mathewson
b5b77f8bf3 r19004@catbus: nickm | 2008-03-21 15:18:43 -0400 
Use RAND_poll() again: the bug that made us stop using it has been fixed.


svn:r14150
 2008-03-21 19:18:57 +00:00
Nick Mathewson
3452486ac6 r14422@tombo: nickm | 2008-02-24 17:09:56 -0500 
Whitespace fixes


svn:r13700
 2008-02-24 22:11:18 +00:00
Nick Mathewson
e7db789e82 r14399@tombo: nickm | 2008-02-22 14:09:38 -0500 
More 64-to-32 fixes. Partial backport candidate. still not done.


svn:r13680
 2008-02-22 19:09:45 +00:00
Nick Mathewson
69300eb606 r14374@tombo: nickm | 2008-02-21 16:57:39 -0500 
Fix all remaining shorten-64-to-32 errors in src/common.  Some were genuine problems.  Many were compatibility errors with libraries (openssl, zlib) that like predate size_t.  Partial backport candidate.


svn:r13665
 2008-02-21 21:57:47 +00:00
Nick Mathewson
b375472d14 r14373@tombo: nickm | 2008-02-21 16:29:18 -0500 
Apply warnings about implicit 64-to-32 conversions; some from Sebastian Hahn; some not.


svn:r13664
 2008-02-21 21:57:42 +00:00
Nick Mathewson
24e8e1fb36 r14185@tombo: nickm | 2008-02-15 18:05:54 -0500 
Replace the hefty tor_strpartition with a simple function to replace its only (trivial) use.


svn:r13532
 2008-02-15 23:39:14 +00:00
Roger Dingledine
509d2912dc doxygen and other cleanups 
svn:r13440
 2008-02-09 03:11:10 +00:00
Nick Mathewson
de827f89df r14062@tombo: nickm | 2008-02-08 15:17:07 -0500 
Change DNs in x509 certificates to be harder to fingerprint.  Raise common code.  Refactor random hostname generation into crypto.c


svn:r13429
 2008-02-08 21:13:12 +00:00
Nick Mathewson
b8179871a6 r17964@catbus: nickm | 2008-02-07 10:45:02 -0500 
Fix bug in last patch that made secret_to_key crash.


svn:r13415
 2008-02-07 16:10:36 +00:00
Nick Mathewson
eecc44dab8 r17963@catbus: nickm | 2008-02-07 10:14:25 -0500 
Be more thorough about memory poisoning and clearing.  Add an in-place version of aes_crypt in order to remove a memcpy from relay_crypt_one_payload.


svn:r13414
 2008-02-07 16:10:33 +00:00
Nick Mathewson
842a33ff20 Update some copyright notices: it is now 2008. 
svn:r13412
 2008-02-07 05:31:47 +00:00
Nick Mathewson
a51deb9a9c r17903@catbus: nickm | 2008-02-05 14:40:03 -0500 
Remove some dead code; fix some XXX020s; turn some XXX020s into XXXX_IP6s (i.e., "needs to be fixed when we add ipv6 support").


svn:r13382
 2008-02-05 19:40:26 +00:00
Nick Mathewson
d7fb8a34ac r17613@catbus: nickm | 2008-01-14 13:52:44 -0500 
Do not segfault if symetric key generation somehow fails in crypto_hybrid_encrypt.


svn:r13132
 2008-01-14 19:00:28 +00:00
Nick Mathewson
becbafc9db r17491@catbus: nickm | 2008-01-07 11:50:24 -0500 
Remove some dead code.


svn:r13053
 2008-01-07 16:50:33 +00:00
Roger Dingledine
1d8a8063b9 clean up copyrights, and assign 2007 copyrights to The Tor Project, Inc 
svn:r12786
 2007-12-12 21:09:01 +00:00
Roger Dingledine
7f12ebc3fa cleanups on r12579 
svn:r12580
 2007-11-27 21:17:43 +00:00
Nick Mathewson
e047f7f865 r16455@catbus: nickm | 2007-11-06 12:48:00 -0500 
Parse CERT cells and act correctly when we get them.


svn:r12396
 2007-11-06 18:00:07 +00:00
Nick Mathewson
7712ddf8e7 r16317@catbus: nickm | 2007-10-31 23:52:52 -0400 
Use HMAC() function from openssl. Oops.


svn:r12304
 2007-11-01 03:56:17 +00:00
Nick Mathewson
17266cc44a r16287@catbus: nickm | 2007-10-31 00:53:53 -0400 
HMAC-SHA-1 implementation, with unit tests based on vectors from RVFC2202.  Steven's stuff will need this.


svn:r12289
 2007-10-31 04:56:59 +00:00
Nick Mathewson
7da93b80ca r16159@catbus: nickm | 2007-10-25 12:53:38 -0400 
Drop support for OpenSSL 0.9.6.


svn:r12191
 2007-10-25 16:54:56 +00:00
Nick Mathewson
e3113502ad r15882@catbus: nickm | 2007-10-17 15:23:05 -0400 
oprofile was telling me that a fair bit of our time in openssl was spent in base64_decode, so replace base64_decode with an all-at-once fairly optimized implementation.  For decoding keys and digests, it seems 3-3.5x faster than calling out to openssl.  (Yes, I wrote it from scratch.)


svn:r12002
 2007-10-17 19:23:56 +00:00
Nick Mathewson
7f9e9c816c r15790@catbus: nickm | 2007-10-15 11:38:28 -0400 
Fix bug 528: fix memory leak in base32_decode().  While there, also make base32_decode() accept upper-case inputs.


svn:r11946
 2007-10-15 15:38:44 +00:00
Nick Mathewson
3de8158b16 r15702@catbus: nickm | 2007-10-11 17:29:20 -0400 
Remove a bunch of redundant includes in crypto.c


svn:r11885
 2007-10-11 21:40:32 +00:00
Nick Mathewson
fc5dd0cdbb r15231@catbus: nickm | 2007-09-20 16:04:30 -0400 
Patch from karsten: remove cbc and make unit tests handle aes-ctr-with-iv.


svn:r11538
 2007-09-20 20:08:47 +00:00
Nick Mathewson
5f7950e874 r15172@catbus: nickm | 2007-09-19 11:50:02 -0400 
New (untested) code to implement AES-with-IV.  Currently, IVs are generated randomly.  Once tested, should be (almost) a drop-in replacement for the CBC functions.


svn:r11519
 2007-09-19 15:53:41 +00:00
Roger Dingledine
1a930cfc70 minor style tweaks 
svn:r11490
 2007-09-18 17:18:14 +00:00
Roger Dingledine
f15a4c8bd7 add some crypto/util functions from karsten, as the first 
step of integrating his new hidden service stuff


svn:r11489
 2007-09-18 17:07:56 +00:00
Nick Mathewson
3637ee0e59 r13383@catbus: nickm | 2007-06-13 13:53:04 -0400 
Expose a function to parse a private key from a string as CRYPTO_PRIVATE.  For testing.


svn:r10583
 2007-06-13 18:15:53 +00:00
Nick Mathewson
6673d445f5 r13283@catbus: nickm | 2007-06-06 01:43:44 -0400 
Fix up a couple of loops flagged by -Wunsafe-loop-optimizations so that they are more readable (and more amenable to compilation)


svn:r10513
 2007-06-06 13:02:22 +00:00
Nick Mathewson
6faa9e2641 r13239@catbus: nickm | 2007-06-04 11:30:37 -0400 
Fix the fix for bug 445: set umask properly.  Also use open+fdopen rather than just umask+fopen, and create authority identity key with mode 400.


svn:r10485
 2007-06-04 15:30:40 +00:00
Nick Mathewson
cb0324c400 r13191@catbus: nickm | 2007-06-03 19:38:18 -0400 
Set umask(0700) when starting tor-gencert; resolves bug 445.


svn:r10475
 2007-06-03 23:38:20 +00:00
Nick Mathewson
a187704872 r12980@Kushana: nickm | 2007-05-18 14:11:05 -0400 
Add a "swap" function to smartlist, add a "shuffle" function for smartlist to crypto.c, and make appropriate hashtable functions be more const.


svn:r10208
 2007-05-18 21:19:14 +00:00
Nick Mathewson
836328be2e r12777@catbus: nickm | 2007-05-16 21:52:23 -0400 
Fix dumb bug introduced in r10199


svn:r10202
 2007-05-17 01:52:26 +00:00
Nick Mathewson
807adfc879 r12769@catbus: nickm | 2007-05-16 17:32:01 -0400 
Fix warnings from -Wunsafe-loop-optimizations, which incidentally turned up a logic bug in connection_or_flush_from_first_active_circuit that would overcount the number of cells flushed.


svn:r10199
 2007-05-16 22:15:48 +00:00
Nick Mathewson
9279c1d5fe r12638@catbus: nickm | 2007-05-02 17:37:30 -0400 
Remove the "RSA keys are 128-bits" assumption from crypto.c


svn:r10096
 2007-05-02 21:37:53 +00:00
Nick Mathewson
6a27dd8284 r12595@catbus: nickm | 2007-04-30 18:32:34 -0400 
Move private function declarations from crypto.c into a new #ifdef CRYPTO_PRIVATE block in crypto.h


svn:r10074
 2007-04-30 22:42:50 +00:00
Nick Mathewson
f38240435a r12001@catbus: nickm | 2007-02-28 15:24:12 -0500 
Try to build without warnings on mingw with verbose warnings on.  First attempt.


svn:r9688
 2007-02-28 20:24:27 +00:00
Nick Mathewson
d6368fd075 r11976@catbus: nickm | 2007-02-27 19:35:59 -0500 
Add some missing (redundant but helpful in most cases) static declarations, and remove a function nobody was calling.


svn:r9672
 2007-02-28 00:36:03 +00:00
Nick Mathewson
759c58151e r11775@catbus: nickm | 2007-02-12 16:39:09 -0500 
Update copyright dates.


svn:r9570
 2007-02-12 21:39:53 +00:00
Roger Dingledine
4ba57f68e4 more changes. i'm all caught up now. 
svn:r9495
 2007-02-06 02:49:07 +00:00
Nick Mathewson
f02be02356 r11639@catbus: nickm | 2007-02-05 13:33:38 -0500 
Add documentation to src/common/*.h; improve documentation for SMARTLIST_FOREACH; remove never-used options and corresponding tests from tor_strpartition.


svn:r9483
 2007-02-05 18:33:52 +00:00
Nick Mathewson
fefba95363 r11629@catbus: nickm | 2007-02-02 15:06:17 -0500 
Removing the last DOCDOC comment hurt so much that I had to use Doxygen to identify undocumented macros and comments, and add 150 more DOCDOCs to point out where they were.  Oops.  Hey, kids!  Fixing some of these could be your first Tor patch!


svn:r9477
 2007-02-02 20:06:43 +00:00
Nick Mathewson
ef0720f909 r9689@catbus: nickm | 2007-01-19 22:34:20 -0500 
And remove another strcpy.


svn:r9375
 2007-01-20 03:35:03 +00:00
Roger Dingledine
dcd33ef599 i saw somebody on #tor paste a string where these were 
null. better safe than sorry.


svn:r8767
 2006-10-20 00:12:02 +00:00
Nick Mathewson
7551c44a53 r9274@Kushana: nickm | 2006-10-19 16:16:58 -0400 
Add unit tests for tor_mmap_file(); make tor_mmap_t.size always be the size of the file (not the size of the mapping); add an extra argument to read_file_to_str() so it can return the size of the result string.


svn:r8762
 2006-10-19 23:05:02 +00:00
Nick Mathewson
c6f2d725d0 r8957@totoro: nickm | 2006-10-08 22:35:17 -0400 
The otherwise regrettable MIPSpro C compiler warns about values set but never used, and about mixing enums and ints; these are good warnings, and so should be fixed.  This removes some dead code and some potential bugs. Thanks to pnx.


svn:r8664
 2006-10-09 02:35:51 +00:00
Roger Dingledine
881d23847a fix something that looked scary to me. i believe this won't 
change any behavior currently, but it will avoiding calling
noop code that might change for the worse some time.

nick, please confirm.


svn:r8623
 2006-10-07 00:52:23 +00:00
Nick Mathewson
219ad6395c r8825@totoro: nickm | 2006-10-01 17:41:27 -0400 
Add function to return a random uint64_t.


svn:r8570
 2006-10-01 21:59:05 +00:00
Nick Mathewson
7d366f61cb r9025@Kushana: nickm | 2006-09-29 18:33:13 -0400 
Differentiate more duplicated log entries


svn:r8542
 2006-09-29 22:33:40 +00:00
Nick Mathewson
87648bdcf8 r9008@Kushana: nickm | 2006-09-29 13:50:10 -0400 
Doxygen comments for code in common.  Also simplify a few code paths to be more clear/speedy/correct.


svn:r8536
 2006-09-29 18:13:37 +00:00
Nick Mathewson
c4ac4bcba3 r8696@Kushana: nickm | 2006-08-31 14:43:44 -0400 
Try to appease some warnings with newer gccs that believe that ignoring a return value is okay, but casting a return value and then ignoring it is a sign of madness.


svn:r8312
 2006-08-31 18:47:54 +00:00
Roger Dingledine
4b94dabb53 note a compile warning that we should investigate one day. 
svn:r7052
 2006-08-14 09:44:54 +00:00
Roger Dingledine
3d79eb52ab stick to nick's nul/null convention 
svn:r6763
 2006-07-15 19:21:30 +00:00
Roger Dingledine
266afcd7d5 bandaid for bug 299. this is still a bug, since we don't 
initialize for hardware acceleration in certain configurations;
but not critical until that is supported.


svn:r6536
 2006-06-05 04:29:03 +00:00
Nick Mathewson
853e2d99b6 Add a new warning to our "warn a lot" list: unused parameters. This means we have to explicitly "use" unuseds, but it can catch bugs. (It caught two coding mistakes so far.) 
svn:r6532
 2006-06-04 22:42:13 +00:00
Roger Dingledine
36712a443b Stop initializing the hardware accelerator engines simply because 
we overloaded the meaning of the argument to crypto_global_init().


svn:r6490
 2006-05-24 00:37:38 +00:00
Nick Mathewson
1fbc74661f Remove DER64 functions in trunk: they will never be used again unless the directory authorities switch back to 0.0.9tooearly. 
svn:r6376
 2006-04-10 21:23:00 +00:00
Roger Dingledine
0543900fbf clean up the traces from tracking the 0.1.1.9-alpha stack-smashing bug. 
svn:r6240
 2006-03-26 06:47:51 +00:00
Nick Mathewson
bd8ffccae7 More cleanups noticed by weasel; also, remove macros that nobody uses. 
svn:r6143
 2006-03-12 23:31:16 +00:00
Roger Dingledine
6ce36ead42 Start the process of converting warn to log_warn and so on. 
This is needed because Windows already has an err() that we
can't clobber. And we need to be able to make the log functions
a macro so we can print the function's name in the log entry.


svn:r6000
 2006-02-13 08:01:59 +00:00
Roger Dingledine
5f051574d5 Happy new year! 
svn:r5949
 2006-02-09 05:46:49 +00:00
Nick Mathewson
45757dafb7 Split PARANOIA_B into B1 and B2. 
svn:r5849
 2006-01-22 18:22:04 +00:00
Nick Mathewson
241310bbac Split 0119_PARANOIA into 0119_PARANOIA_[ABC]. A is "this is suspicious, and we have not tried running without this yet". B is "this is suspicious, but the last time we tested, it was okay." C is "How could this possibly be the cause?" 
svn:r5840
 2006-01-17 23:08:38 +00:00
Nick Mathewson
55ac4f032c Add a (diabled by default) option in crypto.h to disable most of the interesting crypto-related changes made on 0.1.1.9. This will help hunt bug 234. 
svn:r5777
 2006-01-10 21:12:06 +00:00
Nick Mathewson
1af630d32c Bite the bullet and limit all our source lines to 80 characters, the way IBM intended. 
svn:r5582
 2005-12-14 20:40:40 +00:00
Nick Mathewson
e9b66ec906 Document CREATE_FAST better in the code. Move our key expansion algorithm into a separate function in crypto.c 
svn:r5530
 2005-12-08 17:38:32 +00:00
Roger Dingledine
485b2cb4dc get rid of nick's crazy voodoo dh checking. 
svn:r5518
 2005-12-06 23:09:44 +00:00
Roger Dingledine
923ad87470 remove another unused function 
svn:r5477
 2005-11-30 22:19:02 +00:00
Nick Mathewson
9cec3a13f5 remove some functions that are not used; #if0 out some files that are not likely to be used. 
svn:r5471
 2005-11-30 06:27:59 +00:00
Roger Dingledine
8182eb69cd a smidgen more hint when we fail to seed the rng 
svn:r5438
 2005-11-21 01:12:01 +00:00
Nick Mathewson
83d6b0387b Try to build with OpenSSL 0.9.6. Lets pay attention to see if anybody complains. 
svn:r5398
 2005-11-16 05:22:44 +00:00
Nick Mathewson
887178e710 Oops. It looks like there *was* an easy way to make openssl do what we wanted. 
svn:r5370
 2005-11-14 19:18:31 +00:00
Roger Dingledine
5ef2927870 correct nick's comment 
svn:r5360
 2005-11-11 21:44:38 +00:00
Nick Mathewson
f14743a975 Note that much of check_dh_key is voodoo; make x in DH be only 320 bits for DH speed improvement: this wants auditing. [We have blessing from Ian on this.] (Note that DH in SSL is not yet affected.) 
svn:r5359
 2005-11-11 20:18:00 +00:00
Nick Mathewson
3c36a14ba6 Call ERR_remove_state() on the main thread on shutdown,too 
svn:r5322
 2005-10-26 02:20:48 +00:00
Nick Mathewson
9492424d3f Per comments at the bottom of openssl/FAQ, call even more functions to 
clean up OpenSSL's toys when it's done playing.  (Why isn't there an
OpenSSL_free_everything() function?)


svn:r5321
 2005-10-25 19:01:48 +00:00
Nick Mathewson
edf5698474 Start dividing log messages into logging domains. No, LD_ is not the best of identifiers. src/or has not been converted yet. Domains dont do anything yet. 
svn:r5284
 2005-10-18 21:58:19 +00:00
Peter Palfrader
0d9aedfcea Downgrade a few INFO level logs to DEBUG again. Also add two or three new 
logs in cases where a calling function's log was downgraded and we wouldn't
get any log message otherwise.


svn:r5263
 2005-10-17 16:21:42 +00:00
Nick Mathewson
9bc2467626 Okay, try to use RAND_poll() from OpenSSL where available. 
svn:r5229
 2005-10-08 05:47:15 +00:00
Roger Dingledine
c4757e0705 LOG_ERR is for when we know we're going to exit. use LOG_WARN in other 
cases.


svn:r5220
 2005-10-07 19:53:57 +00:00
Nick Mathewson
150e5ac098 disable RAND_poll() for the alpha of the day; at least 24 hours of testing is in order for something like that. 
svn:r5216
 2005-10-07 19:17:20 +00:00
Nick Mathewson
a53ecc94f9 Add half our entropy from RAND_poll in OpenSSL. These know how to use egd (if present) openbsd weirdness (if present), vms/os2 weirdness (if we ever port there), and more in the future. 
svn:r5215
 2005-10-07 19:03:09 +00:00
Nick Mathewson
a89daaeca9 Once an hour (not just on startup) give OpenSSL some more entropy. 
Add entropy in 512-bit chunks, not 160-bit chunks.  (This latter
change is voodoo.)


svn:r5211
 2005-10-06 22:22:22 +00:00
Nick Mathewson
cc35e1720f Using RAND_pseudo_bytes instead of RAND_bytes is an accident waiting to happen, and does not really speed us up much when we do it. So stop doing it. 
svn:r5210
 2005-10-06 22:18:01 +00:00
Nick Mathewson
ba24193ab5 Make doxygen marginally happier 
svn:r5208
 2005-10-06 04:33:40 +00:00
Nick Mathewson
f8c07e1f33 free EVP cipher information on shutdown to remove some spurious dmalloc complaints. 
svn:r5180
 2005-10-03 21:10:35 +00:00
Nick Mathewson
de198d800b Never call free() on tor_malloc()d memory. This is unlikely to be our current leak, but it may help dmalloc work. 
svn:r5168
 2005-09-30 20:47:58 +00:00
Nick Mathewson
26e7a05725 even better function start checks; give dmalloc a chance of working. 
svn:r5162
 2005-09-30 01:39:24 +00:00
Nick Mathewson
92451f74a8 Reformat inconsistent function declarations. 
svn:r5160
 2005-09-30 01:09:52 +00:00
Nick Mathewson
5c53545d81 Add a bunch more warnings to out warning suite; resolve them; pack structs a little better. 
svn:r5150
 2005-09-29 22:59:17 +00:00
Nick Mathewson
f8a80e8d59 Helper functions to perform our truncated base64 encoding on hexdigests. 
svn:r5087
 2005-09-18 02:18:59 +00:00
Nick Mathewson
6b479b3cfa Only do openssl accel stuff if version is at least 0.9.7 
svn:r4973
 2005-09-09 22:07:15 +00:00
Roger Dingledine
fa507c63e8 put quotes around user-supplied strings so they are more likely to 
realize if they add bad characters (like quotes) to the torrc


svn:r4844
 2005-08-26 18:40:44 +00:00
Roger Dingledine
121ea4dd93 a url for better reference 
svn:r4778
 2005-08-15 01:03:50 +00:00
Nick Mathewson
943ef5256b fix whitespace issues 
svn:r4752
 2005-08-08 21:59:48 +00:00
Nick Mathewson
9345323b18 far far cleaner implementation of handshake checking logic. Backport candidate. 
svn:r4736
 2005-08-07 20:36:14 +00:00
Roger Dingledine
bfe65db284 ok, so now it was just redundant. nick, do you recall what rfc 
you were trying to point to?


svn:r4727
 2005-08-07 17:11:33 +00:00
Roger Dingledine
b9a7482c02 note another potential security problem with generating key material 
from our DH handshake.


svn:r4724
 2005-08-06 16:50:51 +00:00
Roger Dingledine
261bf4c4d4 rfc 3536 "provides a glossary of terms used in the IETF when discussing 
internationalization."


svn:r4723
 2005-08-05 22:08:57 +00:00
Nick Mathewson
224fecb281 Appease insane windows compiler. (Oh no, an extra semi, the sky is falling!) 
svn:r4722
 2005-08-05 19:25:23 +00:00
Nick Mathewson
197eb2b2cb fix harmless copy-and-paste error 
svn:r4718
 2005-08-05 14:59:14 +00:00