Commit Graph

17 Commits

Author SHA1 Message Date
Isis Lovecruft
fe3aca1491
crypto: Refactor (P)RNG functionality into new crypto_rand module.
* ADD new /src/common/crypto_rand.[ch] module.
 * ADD new /src/common/crypto_util.[ch] module (contains the memwipe()
   function, since all crypto_* modules need this).
 * FIXES part of #24658: https://bugs.torproject.org/24658
2018-04-06 21:45:28 +00:00
Nick Mathewson
6c8c973191 Rename the hybrid_encrypt/decrypt functions; label them as dangerous
We need to keep these around for TAP and old-style hidden services,
but they're obsolete, and we shouldn't encourage anyone to use them.
So I've added "obsolete" to their names, and a comment explaining
what the problem is.

Closes ticket 23026.
2017-07-24 14:34:53 -04:00
Isis Lovecruft
c59ba01550
rephist: Remove unused crypto_pk statistics.
These statistics were largely ununsed, and kept track of statistical information
on things like how many time we had done TLS or how many signatures we had
verified.  This information is largely not useful, and would only be logged
after receiving a SIGUSR1 signal (but only if the logging severity level was
less than LOG_INFO).

 * FIXES #19871.
 * REMOVES note_crypto_pk_op(), dump_pk_op(), and pk_op_counts from
   src/or/rephist.c.
 * REMOVES every external call to these functions.
2017-07-13 20:24:48 +00:00
Nick Mathewson
43db91bd87 Teach cov-exclude to detect runaway LCOV_EXCL_START lines
Also, fix two instances of runaway LCOV_EXCL_START lines.
2017-04-25 10:59:19 -04:00
Nick Mathewson
7505f452c8 Run the copyright update script. 2017-03-15 16:13:17 -04:00
Nick Mathewson
aae034d13e Write a bunch of module documentation.
This commit adds or improves the module-level documenation for:

  buffers.c circuitstats.c command.c connection_edge.c control.c
  cpuworker.c crypto_curve25519.c crypto_curve25519.h
  crypto_ed25519.c crypto_format.c dircollate.c dirserv.c dns.c
  dns_structs.h fp_pair.c geoip.c hibernate.c keypin.c ntmain.c
  onion.c onion_fast.c onion_ntor.c onion_tap.c periodic.c
  protover.c protover.h reasons.c rephist.c replaycache.c
  routerlist.c routerparse.c routerset.c statefile.c status.c
  tor_main.c workqueue.c

In particular, I've tried to explain (for each documented module)
what each module does, what's in it, what the big idea is, why it
belongs in Tor, and who calls it.  In a few cases, I've added TODO
notes about refactoring opportunities.

I've also renamed an argument, and fixed a few DOCDOC comments.
2016-10-17 10:16:59 -04:00
Nick Mathewson
ae22c249c3 Improve test coverage a little on onion*.c 2016-07-06 12:37:52 -04:00
Nick Mathewson
57699de005 Update the copyright year. 2016-02-27 18:48:19 +01:00
Nick Mathewson
d03e1da232 Merge remote-tracking branch 'public/bug9635_warnings_025'
Conflicts:
	src/test/test.c
2015-02-02 16:31:32 -05:00
Nick Mathewson
f54e54b0b4 Bump copyright dates to 2015, in case someday this matters. 2015-01-02 14:27:39 -05:00
Nick Mathewson
fcdcb377a4 Add another year to our copyright dates.
Because in 95 years, we or our successors will surely care about
enforcing the BSD license terms on this code.  Right?
2014-10-28 15:30:16 -04:00
Nick Mathewson
fb91d647ac Downgrade 'invalid result from curve25519 handshake: 4' warning
Also, refactor the way we handle failed handshakes so that this
warning doesn't propagate itself to "onion_skin_client_handshake
failed" and "circuit_finish_handshake failed" and
"connection_edge_process_relay_cell (at origin) failed."

Resolves warning from 9635.
2014-10-16 13:26:42 -04:00
Roger Dingledine
7a878c192f Downgrade "Unexpected onionskin length after decryption" warning
It's now a protocol-warn, since there's nothing relay operators can
do about a client that sends them a malformed create cell.

Resolves bug 12996; bugfix on 0.0.6rc1.
2014-08-29 16:38:54 -04:00
Nick Mathewson
de9de9e7dd Give specific warnings when client-side onionskin handshakes fail
Fix for bug9635.
2014-03-27 14:15:53 -04:00
Nick Mathewson
4da083db3b Update the copyright date to 201. 2013-01-16 01:54:56 -05:00
Nick Mathewson
f58d4dfcd6 Massive refactoring of the various handshake types
The three handshake types are now accessed from a unified interface;
their state is abstracted from the rest of the cpath state, and so on.
2013-01-03 11:29:46 -05:00
Nick Mathewson
f7e590df05 Split onion.[ch] into onion{,_fast,_tap}.[ch]
I'm going to want a generic "onionskin" type and set of wrappers, and
for that, it will be helpful to isolate the different circuit creation
handshakes.  Now the original handshake is in onion_tap.[ch], the
CREATE_FAST handshake is in onion_fast.[ch], and onion.[ch] now
handles the onion queue.

This commit does nothing but move code and adjust header files.
2013-01-02 14:11:14 -05:00