exa/codecrypt
1
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity
434 commits 1 branch 0 tags 20 MiB
Commit graph

264 commits

Author SHA1 Message Date
Mirek Kratochvil ad40fbe5dc keyring: write backup before actually touching keys 2017-06-26 14:30:07 +02:00
Mirek Kratochvil dc3a874cd5 generator: allow own PRNG seed source 2017-06-26 14:28:54 +02:00
Mirek Kratochvil d53586d582 remove obsolete qd_utils header 2017-04-25 12:15:06 +02:00
Mirek Kratochvil 0bd9ab6d54 hashfile: avoid being fine with informative-grade hashes only 2016-04-28 21:58:52 +02:00
Mirek Kratochvil 8e608b4d8d mce_qd: remove obsolete MCE-QD encryption 2016-04-28 13:14:24 +02:00
Mirek Kratochvil 213331903e cubehash_impl: fix cubehash implementation mistake 
Well, there's a reason for that test vectors are published on wikipedia.

Although this looks scary (like writing past array bounds), cubehash B
parameter is in all cases smaller than 63 (which is the first B value where
this would write behind the array), so no harm is done. For similar reason, the
"misimplemented" cubehash was cryptographically correct (i.e. without
cryptographic weakness), only implemented differently and producing different
results than those prescribed by the standard.

Practical implications of changing the hash functions are:
- everyone gets a new KeyID
- FMTSeq keys that used cubehash are invalid now, users are forced to generate
  new ones
 2016-04-28 12:49:13 +02:00
Mirek Kratochvil f3f1a805ce cubehash_impl: support non-little-endian architectures 2016-04-28 12:49:13 +02:00
Mirek Kratochvil a09344f034 add proper copyright notices 2016-04-17 15:48:09 +02:00
Mirek Kratochvil f07f4027a2 clarify the `-g help' option better 2016-04-17 15:09:26 +02:00
Mirek Kratochvil e7521cdc86 mce_qd: make the warning louder 2016-04-17 15:09:10 +02:00
Mirek Kratochvil d8f358e8ed mce_qcmdpc: decrease decoding failure rate 
The `online' modification of unsatisfied eqn counts caused increased rate of
decoding failures (verified experimentally). Use the variant that doesn't
modify the counts until next round.
 2016-02-06 12:46:40 +01:00
Mirek Kratochvil 035fef4882 mce_qcmdpc: improve decoding logic a bit 2016-02-06 12:46:34 +01:00
Mirek Kratochvil c1800500cf oh look, year changed 2016-01-20 22:54:35 +01:00
Mirek Kratochvil dbce46b48a better configuration of crypto++ library 
This fixes issues on unixes without /usr/include/crypto++ and makes use of
pkgconfig to configure the package correctly.
 2016-01-13 10:07:57 +01:00
Mirek Kratochvil abf0ea26b0 support redirecting to - 
just noticed that possibility in the docs...
 2016-01-12 23:20:22 +01:00
Mirek Kratochvil b3f8f32cb1 documentation/help update 2016-01-12 23:20:07 +01:00
Mirek Kratochvil 46f68fdc93 main: provide -E option to redirect stderr to file 2016-01-11 16:33:15 +01:00
Mirek Kratochvil 5b2bc564d1 iohelpers: forgotten styleup 2015-12-05 18:55:09 +01:00
Mirek Kratochvil dabb8fe1a1 prevent mangling user output by correct escapes 
+ some code cleaning
 2015-12-05 18:34:50 +01:00
Mirek Kratochvil 1d2197ca02 symkey: change default key size to 512 bits 2015-12-05 18:31:36 +01:00
Mirek Kratochvil bad79f05a0 mce_qcmdpc: code cleaniness 2015-11-17 17:07:05 +01:00
Mirek Kratochvil aaa8c9ae9d cleaned-up version bump 2015-11-15 20:43:30 +01:00
Mirek Kratochvil de4ee8aa39 algos_enc: fixup the padding for non-byte-aligned keys 2015-11-15 20:38:30 +01:00
Mirek Kratochvil 78a00ae3ce mce_qcmdpc: implement faster decoding 
This replaces the periodic recalculation of error correlations and the syndrome
by in-place modification. Bit flip is therefore a bit slower, but overall
decoding of the 256-bit secure variant fits in 200ms, and 128-bit variant
decodes under 20ms.

There still could be some (blatantly nondeterministic) method to do this using
FFT, research underway.
 2015-11-15 20:35:03 +01:00
Mirek Kratochvil f06372d874 mce_qcmdpc: fixup comments 2015-11-15 11:06:34 +01:00
Mirek Kratochvil 3f625e3690 implement circulant multiplication by FFT +tooling 
The thing in now used in mce_qcmdpc where possible.
Also, some parameter tuning.
 2015-11-15 11:05:44 +01:00
Mirek Kratochvil 23cd287372 documentation updates 2015-11-07 23:52:16 +01:00
Mirek Kratochvil a7ffdbdee0 bvector: use faster to/from string/byte conversion 2015-11-07 23:17:09 +01:00
Mirek Kratochvil bbca109f8b mce_qcmdpc: remove debug output 2015-11-07 19:53:42 +01:00
Mirek Kratochvil 8b4e0ba4ea massive code cleanup and removal of dead code 2015-11-07 19:38:08 +01:00
Mirek Kratochvil 17f77e16a4 mce_qcmdpc: QC-MDPC McEliece 2015-11-07 19:37:30 +01:00
Mirek Kratochvil 878d326859 bvector: faster implementation with 64bit ints 2015-11-07 19:33:47 +01:00
Mirek Kratochvil 19d59f9ec1 bulk-apply new code styling rules 2015-10-31 22:58:17 +01:00
Mirek Kratochvil a2c1c3992d mce_qd: add a security warning 2015-10-31 10:00:58 +01:00
Mirek Kratochvil 67192f621e main: update the year 2015-10-30 21:02:03 +01:00
Mirek Kratochvil 246cda84a7 prevent mangling user output by crafted keyring 2014-08-16 15:27:36 +02:00
Mirek Kratochvil 68909b74ad symkey: simplify padding 2014-04-19 22:09:44 +02:00
Mirek Kratochvil 07012cb297 symkey: use hmac to fix possible collision attack 2014-04-19 21:59:15 +02:00
Mirek Kratochvil 8d43c29988 update changelog and others 2014-04-09 16:34:50 +02:00
Mirek Kratochvil 760bcdc7f7 new encryption algos with xsynd/chacha20 2014-04-09 16:14:31 +02:00
Mirek Kratochvil 85b1c69b5c algos_sig: macro-squash 2014-04-09 16:01:37 +02:00
Mirek Kratochvil eae6fe5675 algos_sig: use chacha instead of rc4 for padding 2014-04-09 15:51:58 +02:00
Mirek Kratochvil 5c739804fd algos_enc: macro-squash algorighm definitions 2014-04-09 15:29:34 +02:00
Mirek Kratochvil c85a3f72a5 hash: correctly accept HAVE_CRYPTOPP 2014-04-06 14:53:47 +02:00
Mirek Kratochvil 8e0597824a symmetric encryption working 2014-04-06 13:46:04 +02:00
Mirek Kratochvil b30009b910 chacha: fix 2 funny oneliners 2014-04-06 13:37:26 +02:00
Mirek Kratochvil 9c4287c636 named collections for hashes and stream ciphers 
also, with the funny factoryof<> and instanceof<> primitives that kindof
solve the memory trouble.
 2014-04-05 23:45:01 +02:00
Mirek Kratochvil 654b2f58ef serialization: use macros for hard work 2014-04-05 14:54:54 +02:00
Mirek Kratochvil eb47cce9ad symkey: primitive for symmetric encryption 2014-04-05 14:33:25 +02:00
Mirek Kratochvil c5cf430ab5 fmtseq: remove internal rc4 usage, use chacha20 
Result is incompatible with previous version. Those just shouldn't be
used anymore.
 2014-04-05 14:04:08 +02:00