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529 Commits

Author SHA1 Message Date
Pieter Wuille
87c782f632
Merge pull request #53 
2f6c801 Try to not leave secret data on the stack or heap. (Gregory Maxwell)
 2014-08-23 14:13:10 +02:00
Gregory Maxwell
2f6c801911
Try to not leave secret data on the stack or heap. 
This makes a basic effort and has not been audited.
Doesn't appear to have a measurable performance impact on bench.

It also adds a secp256k1_num_free to secp256k1_ecdsa_pubkey_create.
 2014-08-14 07:06:36 -07:00
caktux
364fde65f6 fix unsigned warning in num_gmp_impl.h 2014-08-11 16:09:09 -04:00
Pieter Wuille
1a749b4a6e Add secp256k1_num_eq and use it in tests 2014-08-09 19:22:42 +02:00
Pieter Wuille
25f4aec02f Add high-level secp256k1.c tests 2014-08-03 19:54:41 +02:00
Pieter Wuille
21f81a8469 Correct secp256k1_fe_verify and use it everywhere 2014-07-17 21:07:40 +02:00
Peter Dettman
59447da38d Test demonstrating discrepancy in sqr output 2014-07-17 21:07:38 +02:00
Peter Dettman
f16be77ffc Use batch inversion in G precomputation 2014-07-17 15:33:00 +07:00
Peter Dettman
42822baaa8 Improve normalization performance for 32bit 
- Uses a similar approach to the latest 64bit _normalize.
- Add one useful optimization back into the 64bit _normalize too.

Performance of 'bench' improved by around 0.5% for the 32bit field (but tested on a 64-bit machine).
 2014-06-23 12:12:58 +07:00
Pieter Wuille
9849c6898c
Merge pull request #31 
0592d11 Introduce CHECK() for tests that works with NDEBUG. (Pieter Wuille)
 2014-06-20 23:25:38 +02:00
Pieter Wuille
0592d117da Introduce CHECK() for tests that works with NDEBUG. 2014-06-16 01:30:17 +02:00
Pieter Wuille
4d79bebdff Do not free endomorphism constants when disabled 2014-06-15 23:31:17 +02:00
Pieter Wuille
ebfa43b20a
Merge pull request #25 
6d6102f A few improvements to the sqrt tests (Peter Dettman)
 2014-06-03 22:01:47 +02:00
Peter Dettman
9037707720 Rewrite 5x52 normalize method to be faster 2014-06-03 18:59:21 +07:00
Peter Dettman
6d6102fee4 A few improvements to the sqrt tests 2014-06-03 17:50:27 +07:00
Pieter Wuille
7740eff28a
Merge pull request #19 
09ca4f3 secp256k1_fe_sqrt checks for success (Peter Dettman)
 2014-06-02 10:46:12 +02:00
Pieter Wuille
3bc866b88f
Merge pull request #20 
d7fd4d0 Use endomorphism in precomputations (Peter Dettman)
 2014-06-02 10:45:44 +02:00
Peter Dettman
17eec032c8 Support 64bit_asm field on OSX 2014-06-02 15:33:35 +07:00
Peter Dettman
d7fd4d0f6b Use endomorphism in precomputations 2014-05-22 10:17:30 +07:00
Peter Dettman
09ca4f32e2 secp256k1_fe_sqrt checks for success 
- secp256k1_fe_sqrt now checks that the value it calculated is actually a square root.
- Add return values to secp256k1_fe_sqrt and secp256k1_ge_set_xo.
- Callers of secp256k1_ge_set_xo can use return value instead of explicit validity checks
- Add random value tests for secp256k1_fe_sqrt
 2014-05-21 10:22:14 +07:00
Pieter Wuille
78fb796997
Merge pull request #8 
ba8fc0e Check signature nonces for validity (William Swanson)
 2014-05-08 20:09:09 +02:00
evoskuil
ac274bff23 Fix x64 gmp init on platforms that define UL as 32 bits. 2014-05-08 10:28:20 -07:00
William Swanson
ba8fc0e28f Check signature nonces for validity 
The documentation implies that this check is happening, so make it so.
Without this check, passing an invalid nonce will trigger an internal assertion.
 2014-04-24 14:18:44 -07:00
Pieter Wuille
11ab562203 Move implementations from impl/*.h to *_impl.h 2014-03-12 18:40:02 +01:00
Pieter Wuille
65a79b300c Slice bytes of G multiples to avoid cache timings 2014-03-07 00:32:41 +01:00
Peter Dettman
bb7bb81d07 Fix addition chain entry in comments 2014-01-31 11:43:57 +07:00
Peter Dettman
f8ccd9befd Re-write secp256k1_fe_sqrt and secp256k1_fe_inv to use a sliding window over blocks of 1s 2014-01-30 19:16:20 +07:00
Cory Fields
5a9989c52a add missing include 2014-01-17 23:24:12 -05:00
Cory Fields
78cd96b151 autotools: autotools'ify libsecp256k1 2014-01-17 23:24:12 -05:00
Pieter Wuille
60442b835f Remove 5x64 implementation - no actual benefits 2013-12-01 21:16:47 +01:00
Pieter Wuille
399c03f227 Make endomorphism optimization optional 2013-12-01 21:06:20 +01:00
Pieter Wuille
ad52495d72 Check for overflows when order is added at recovery 2013-11-07 20:27:13 +01:00
Pieter Wuille
d0b33489f2 Break malleability by producing S <= order/2 2013-09-19 00:58:42 +02:00
Pieter Wuille
350ade2ab4 Tweak fixes & variable name improvement 2013-07-14 20:49:37 +02:00
Pieter Wuille
86d3cce2a9 Add support for multiplicative tweaking 2013-07-14 17:58:23 +02:00
Pieter Wuille
b0be6aba91 Invert buggy logic in secp256k1_ecdsa_seckey_verify 2013-07-13 01:31:41 +02:00
Diederik Huys
355b4192cf 1st assembly version of field 5x64 code - bugfix 2013-06-17 15:31:06 +02:00
Diederik Huys
dd804adeff 1st assembly version of field 5x64 code 2013-06-16 22:46:43 +02:00
Pieter Wuille
6c78924a10 Inline asm for 5x64 2013-06-09 00:52:14 +02:00
Pieter Wuille
1487ca95c6 Field 5x64 2013-06-09 00:04:55 +02:00
Pieter Wuille
561b0e1044 Private/public key tweaking 2013-05-27 01:18:48 +02:00
Pieter Wuille
e3c5c26f54 Allow private keys with less-than-32-byte secrets 2013-05-24 05:32:53 +02:00
Matt Corallo
6df016fb20 Fix JNI for C instead of C++ 
(because apparently there is a significant difference...)
 2013-05-18 16:05:58 +02:00
Pieter Wuille
12e29b320f Use privkey serialization to construct OpenSSL keys 2013-05-10 00:53:47 +02:00
Pieter Wuille
4bef497b9c Bugfix: correct privkey serialization 2013-05-10 00:52:28 +02:00
Pieter Wuille
0a433ea23c MIT License 2013-05-09 15:24:32 +02:00
Pieter Wuille
2fb64b2da2 Inline verify is slow, this is what unit tests are for 2013-05-05 17:00:05 +02:00
Pieter Wuille
dd08f03799 OpenSSL/EC tests 2013-05-05 16:55:05 +02:00
Pieter Wuille
da3038c757 Privkey import/export 2013-05-05 05:12:43 +02:00
Pieter Wuille
50eb498ece Compact signatures/pubkey recovery 2013-05-05 02:46:07 +02:00