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2017-01-18Fix a memory leak in bench.cNick Mathewson
2016-09-16Simplify the crypto_cipher_t interface and structureNick Mathewson
Previously, the IV and key were stored in the structure, even though they mostly weren't needed. The only purpose they had was to support a seldom-used API where you could pass NULL when creating a cipher in order to get a random key/IV, and then pull that key/IV back out. This saves 32 bytes per AES instance, and makes it easier to support different key lengths.
2016-09-06checkSpace.pl now forbids more identifiers.Nick Mathewson
The functions it warns about are: assert, memcmp, strcat, strcpy, sprintf, malloc, free, realloc, strdup, strndup, calloc. Also, fix a few lingering instances of these in the code. Use other conventions to indicate _intended_ use of assert and malloc/realloc/etc.
2016-07-28Fix all -Wshadow warnings on LinuxNick Mathewson
This is a partial fix for 18902.
2016-06-11Add -Wmissing-variable-declarations, with attendant fixesNick Mathewson
This is a big-ish patch, but it's very straightforward. Under this clang warning, we're not actually allowed to have a global variable without a previous extern declaration for it. The cases where we violated this rule fall into three roughly equal groups: * Stuff that should have been static. * Stuff that was global but where the extern was local to some other C file. * Stuff that was only global when built for the unit tests, that needed a conditional extern in the headers. The first two were IMO genuine problems; the last is a wart of how we build tests.
2016-02-27Update the copyright year.Nick Mathewson
2015-12-19Add the SHA-3 hash functions to common/crypto.h.Yawning Angel
* DIGEST_SHA3_[256,512] added as supported algorithms, which do exactly what is said on the tin. * test/bench now benchmarks all of the supported digest algorithms, so it's possible to see just how slow SHA-3 is, though the message sizes could probably use tweaking since this is very dependent on the message size vs the SHA-3 rate.
2015-11-25Make crypto_seed_rng() and crypto_rand() less scary.Nick Mathewson
These functions must really never fail; so have crypto_rand() assert that it's working okay, and have crypto_seed_rng() demand that callers check its return value. Also have crypto_seed_rng() check RAND_status() before returning.
2015-07-06Integrate and enable ed25519-donna.Yawning Angel
The runtime sanity checking is slightly different from the optimized basepoint stuff in that it uses a given implementation's self tests if available, and checks if signing/verification works with a test vector from the IETF EdDSA draft. The unit tests include a new testcase that will fuzz donna against ref0, including the blinding and curve25519 key conversion routines. If this is something that should be done at runtime (No?), the code can be stolen from there. Note: Integrating batch verification is not done yet.
2015-07-06Integrate the accelerated Curve25519 scalar basemult.Yawning Angel
Integration work scavanged from nickm's `ticket8897_9663_v2` branch, with minor modifications. Tor will still sanity check the output but now also attempts to catch extreme breakage by spot checking the optimized implementation vs known values from the NaCl documentation. Implements feature 9663.
2015-05-21Remove support for OpenSSL without ECC.Yawning Angel
As OpenSSL >= 1.0.0 is now required, ECDHE is now mandatory. The group has to be validated at runtime, because of RedHat lawyers (P224 support is entirely missing in the OpenSSL RPM, but P256 is present and is the default). Resolves ticket #16140.
2015-05-20Now that OpenSSL 0.9.8 is dead, crypto_seed_rng() needs no argsNick Mathewson
It needed an argument before because it wasn't safe to call RAND_poll() on openssl 0.9.8c if you had already opened more fds than would fit in fd_set.
2015-05-20Remove code to support OpenSSL 0.9.8Nick Mathewson
2015-02-02Merge remote-tracking branch 'public/bug9635_warnings_025'Nick Mathewson
Conflicts: src/test/test.c
2015-01-02Bump copyright dates to 2015, in case someday this matters.Nick Mathewson
2014-10-28Add another year to our copyright dates.Nick Mathewson
Because in 95 years, we or our successors will surely care about enforcing the BSD license terms on this code. Right?
2014-10-27Remove configure option to disable curve25519Sebastian Hahn
By now, support in the network is widespread and it's time to require more modern crypto on all Tor instances, whether they're clients or servers. By doing this early in 0.2.6, we can be sure that at some point all clients will have reasonable support.
2014-10-22Merge remote-tracking branch 'public/ticket6938'Nick Mathewson
Conflicts: src/tools/tor-resolve.c
2014-10-16Downgrade 'invalid result from curve25519 handshake: 4' warningNick Mathewson
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.
2014-09-29Stop test & bench build failures with --disable-curve25519teor
Ensure test & bench code that references curve25519 is disabled by the appropriate macros. tor now builds with and without --disable-curve25519.
2014-09-25Add benchmarks for ed25519 functionsNick Mathewson
2014-09-10Remember log messages that happen before logs are configuredNick Mathewson
(And replay them once we know our first real logs.) This is an implementation for issue 6938. It solves the problem of early log mesages not getting sent to log files, but not the issue of early log messages not getting sent to controllers.
2014-05-06Remove a spurious variable.Nick Mathewson
2014-05-06Add a siphash benchmark.Nick Mathewson
2014-02-12Randomize the global siphash key at startupNick Mathewson
This completes our conversion to using siphash for our hash functions.
2014-02-07Merge remote-tracking branch 'origin/maint-0.2.4'Nick Mathewson
2014-02-07Survive fedora's openssl in our benchmarksNick Mathewson
Apparently fedora currently has ECDH but not P224. This isn't a huge deal, since we no longer use OpenSSL's P224 ever (see #9780 and 72c1e5acfe1c6). But we shouldn't have segfaulting benchmarks really. Fixes bug 10835; bugfix on 0.2.4.8-alpha.
2013-09-18Fix benchmarks to run without crashing.Nick Mathewson
I broke this when I added separate test-mode support by having the benchmarks get built with TEST_CFLAGS.
2013-07-10Completely refactor how FILENAME_PRIVATE worksNick Mathewson
We previously used FILENAME_PRIVATE identifiers mostly for identifiers exposed only to the unit tests... but also for identifiers exposed to the benchmarker, and sometimes for identifiers exposed to a similar module, and occasionally for no really good reason at all. Now, we use FILENAME_PRIVATE identifiers for identifiers shared by Tor and the unit tests. They should be defined static when we aren't building the unit test, and globally visible otherwise. (The STATIC macro will keep us honest here.) For identifiers used only by the unit tests and never by Tor at all, on the other hand, we wrap them in #ifdef TOR_UNIT_TESTS. This is not the motivating use case for the split test/non-test build system; it's just a test example to see how it works, and to take a chance to clean up the code a little.
2013-06-18Attempt to un-confuse coverity about (false) double-free in bench_onion_ntor.Nick Mathewson
2013-02-11Fix even more dead code and resource leaks in the unit testsNick Mathewson
Found by coverity
2013-02-11Resolve memory leaks in the unit tests and benchmarks (found by coverity)Nick Mathewson
These shouldn't really matter, but it's nice to be leak-free.
2013-01-16Rename *_isin to *_containsNick Mathewson
This is an automatically generated commit, from the following perl script, run with the options "-w -i -p". s/smartlist_string_num_isin/smartlist_contains_int_as_string/g; s/smartlist_string_isin((?:_case)?)/smartlist_contains_string$1/g; s/smartlist_digest_isin/smartlist_contains_digest/g; s/smartlist_isin/smartlist_contains/g; s/digestset_isin/digestset_contains/g;
2013-01-16Update the copyright date to 201.Nick Mathewson
2013-01-03Merge branch 'ntor-resquashed'Nick Mathewson
Conflicts: src/or/cpuworker.c src/or/or.h src/test/bench.c
2013-01-03ntor: Don't fail fast server-side on an unrecognized KEYID(B)Nick Mathewson
2013-01-03Massive refactoring of the various handshake typesNick Mathewson
The three handshake types are now accessed from a unified interface; their state is abstracted from the rest of the cpath state, and so on.
2013-01-02Split onion.[ch] into onion{,_fast,_tap}.[ch]Nick Mathewson
I'm going to want a generic "onionskin" type and set of wrappers, and for that, it will be helpful to isolate the different circuit creation handshakes. Now the original handshake is in onion_tap.[ch], the CREATE_FAST handshake is in onion_fast.[ch], and onion.[ch] now handles the onion queue. This commit does nothing but move code and adjust header files.
2013-01-02Implementat the ntor handshakeNick Mathewson
The ntor handshake--described in proposal 216 and in a paper by Goldberg, Stebila, and Ustaoglu--gets us much better performance than our current approach.
2012-12-25Add benchmark for DH handshake and ECDH-P-224/56 handshakeNick Mathewson
2012-12-06Add benchmark to test onionskin performance.Nick Mathewson
2012-10-12Rename all reserved C identifiers we definedNick Mathewson
For everything we declare that starts with _, make it end with _ instead. This is a machine-generated patch. To make it, start by getting the list of reserved identifiers using: git ls-tree -r --name-only HEAD | grep '\.[ch]$' | \ xargs ctags --c-kinds=defglmpstuvx -o - | grep '^_' | \ cut -f 1 | sort| uniq You might need gnu ctags. Then pipe the output through this script: ============================== use strict; BEGIN { print "#!/usr/bin/perl -w -i -p\n\n"; } chomp; next if ( /^__attribute__/ or /^__func__/ or /^_FILE_OFFSET_BITS/ or /^_FORTIFY_SOURCE/ or /^_GNU_SOURCE/ or /^_WIN32/ or /^_DARWIN_UNLIMITED/ or /^_FILE_OFFSET_BITS/ or /^_LARGEFILE64_SOURCE/ or /^_LFS64_LARGEFILE/ or /^__cdecl/ or /^__attribute__/ or /^__func__/ or /^_WIN32_WINNT/); my $ident = $_; my $better = $ident; $better =~ s/^_//; $better = "${better}_"; print "s/(?<![A-Za-z0-9_])$ident(?![A-Za-z0-9_])/$better/g;\n"; ============================== Then run the resulting script on all the files you want to change. (That is, all the C except that in src/ext.) The resulting script was: ============================== s/(?<![A-Za-z0-9_])_address(?![A-Za-z0-9_])/address_/g; s/(?<![A-Za-z0-9_])_aes_fill_buf(?![A-Za-z0-9_])/aes_fill_buf_/g; s/(?<![A-Za-z0-9_])_AllowInvalid(?![A-Za-z0-9_])/AllowInvalid_/g; s/(?<![A-Za-z0-9_])_AP_CONN_STATE_MAX(?![A-Za-z0-9_])/AP_CONN_STATE_MAX_/g; s/(?<![A-Za-z0-9_])_AP_CONN_STATE_MIN(?![A-Za-z0-9_])/AP_CONN_STATE_MIN_/g; s/(?<![A-Za-z0-9_])_assert_cache_ok(?![A-Za-z0-9_])/assert_cache_ok_/g; s/(?<![A-Za-z0-9_])_A_UNKNOWN(?![A-Za-z0-9_])/A_UNKNOWN_/g; s/(?<![A-Za-z0-9_])_base(?![A-Za-z0-9_])/base_/g; s/(?<![A-Za-z0-9_])_BridgePassword_AuthDigest(?![A-Za-z0-9_])/BridgePassword_AuthDigest_/g; s/(?<![A-Za-z0-9_])_buffer_stats_compare_entries(?![A-Za-z0-9_])/buffer_stats_compare_entries_/g; s/(?<![A-Za-z0-9_])_chan_circid_entries_eq(?![A-Za-z0-9_])/chan_circid_entries_eq_/g; s/(?<![A-Za-z0-9_])_chan_circid_entry_hash(?![A-Za-z0-9_])/chan_circid_entry_hash_/g; s/(?<![A-Za-z0-9_])_check_no_tls_errors(?![A-Za-z0-9_])/check_no_tls_errors_/g; 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2012-06-04Update copyright dates to 2012; add a few missing copyright statementsNick Mathewson
2012-03-27Refactor the API for setting up a block cipher.Nick Mathewson
It allows us more flexibility on the backend if the user needs to specify the key and IV at setup time.
2012-01-18Rename nonconformant identifiers.Nick Mathewson
Fixes bug 4893. These changes are pure mechanical, and were generated with this perl script: /usr/bin/perl -w -i.bak -p s/crypto_pk_env_t/crypto_pk_t/g; s/crypto_dh_env_t/crypto_dh_t/g; s/crypto_cipher_env_t/crypto_cipher_t/g; s/crypto_digest_env_t/crypto_digest_t/g; s/aes_free_cipher/aes_cipher_free/g; s/crypto_free_cipher_env/crypto_cipher_free/g; s/crypto_free_digest_env/crypto_digest_free/g; s/crypto_free_pk_env/crypto_pk_free/g; s/_crypto_dh_env_get_dh/_crypto_dh_get_dh/g; s/_crypto_new_pk_env_rsa/_crypto_new_pk_from_rsa/g; s/_crypto_pk_env_get_evp_pkey/_crypto_pk_get_evp_pkey/g; s/_crypto_pk_env_get_rsa/_crypto_pk_get_rsa/g; s/crypto_new_cipher_env/crypto_cipher_new/g; s/crypto_new_digest_env/crypto_digest_new/g; s/crypto_new_digest256_env/crypto_digest256_new/g; s/crypto_new_pk_env/crypto_pk_new/g; s/crypto_create_crypto_env/crypto_cipher_new/g; s/connection_create_listener/connection_listener_new/g; s/smartlist_create/smartlist_new/g; s/transport_create/transport_new/g;
2011-11-11All-in-one benchmark test for cell cryptoNick Mathewson
2011-11-11Convert bench_dmap to produce reasonable output.Nick Mathewson
2011-11-11New src/test/bench.c to allow us to actually _run_ benchmark codeNick Mathewson
Yes, the timing functions are suboptimal. Please improve!
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