a724d7296d
configure: add --enable-coverage to set options for coverage analysis
2016-11-28 03:29:01 +00:00
20b8877be1
Add exhaustive test for group functions on a low-order subgroup
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We observe that when changing the b-value in the elliptic curve formula
`y^2 = x^3 + ax + b`, the group law is unchanged. Therefore our functions
for secp256k1 will be correct if and only if they are correct when applied
to the curve defined by `y^2 = x^3 + 4` defined over the same field. This
curve has a point P of order 199.
This commit adds a test which computes the subgroup generated by P and
exhaustively checks that addition of every pair of points gives the correct
result.
Unfortunately we cannot test const-time scalar multiplication by the same
mechanism. The reason is that these ecmult functions both compute a wNAF
representation of the scalar, and this representation is tied to the order
of the group.
Testing with the incomplete version of gej_add_ge (found in 5de4c5dff^)
shows that this detects the incompleteness when adding P - 106P, which
is exactly what we expected since 106 is a cube root of 1 mod 199.
2016-11-25 20:45:29 +00:00
e06e878fd7
Remove Schnorr experiment
2016-11-17 18:55:06 -08:00
00c5d2e142
fix auto-enabled static precompuatation
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This was broken in aa0b1fd149
2016-09-07 12:16:15 -04:00
65285a63ee
Merge #403 : configure: add flag to disable OpenSSL tests
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a9b2a5d
2016-07-06 12:08:16 +02:00
a9b2a5d850
configure: add flag to disable OpenSSL tests
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OpenSSL messes up valgrind.
2016-07-06 08:25:33 +00:00
24ad20f75b
Merge #399 : build: verify that the native compiler works for static precomp
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aa0b1fd
2016-06-29 11:11:46 +02:00
aa0b1fd149
build: verify that the native compiler works for static precomp
2016-05-27 15:45:14 -04:00
eee808d809
Test whether ECDH and Schnorr are enabled for JNI
2016-05-25 19:15:42 +02:00
001f1763c7
ARM assembly implementation of field_10x26 inner
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Rebased-by: Pieter Wuille <pieter.wuille@gmail.com>
2016-05-25 18:27:47 +02:00
3093576aa4
JNI library
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Squashed and rebased. Thanks to @theuni and @faizkhan00 for doing
the majority of work here! Also thanks to @btchip for help with debugging
and review.
2016-02-01 14:07:18 +01:00
83221ecb00
Add experimental features to configure
2015-11-27 00:20:28 +01:00
118cd8210f
Use explicit symbol visibility.
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The use of static makes this somewhat redundant currently, though if
we later have multiple compilation units it will be needed.
This also sets the dllexport needed for shared libraries on win32.
2015-09-25 05:42:20 +00:00
85e3a2cc08
Merge pull request #112
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2b4cf41
2015-09-04 20:24:42 +02:00
9f443be086
Move pubkey recovery code to separate module
2015-08-28 01:51:52 +02:00
9d96e362a5
Merge pull request #280
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ed5334a
2015-08-04 16:32:39 +02:00
a5a66c70b6
Add support for custom EC-Schnorr-SHA256 signatures
2015-08-03 20:08:51 +02:00
0739bbb6f0
Add ECDH module which works by hashing the output of ecmult_const
2015-08-01 10:57:33 -05:00
ed5334a7fe
Update configure.ac to make it build on OpenBSD
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This update is to make libsecp256k1 build on OpenBSD (more specifically OpenBSD 5.7 with Autotools 2.69).
Without the "AM_PROG_CC_C_O" line in configure.ac, ./autogen.sh crashes with "Makefile.am: C objects in subdir but `AM_PROG_CC_C_O' not in `configure.ac'\nautoreconf-2.69: automake failed with exit status: 1".
2015-07-19 16:07:46 +02:00
a83bb48068
Make ecmult static precomputation default
2015-07-15 21:41:51 -04:00
fbecc38a89
Add ability to use a statically generated ecmult context.
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This vastly shrinks the size of the context required for signing on devices with
memory-mapped Flash.
Tables are generated by the new gen_context tool into a header.
2015-07-13 18:00:03 -07:00
4bc273bd9c
Merge pull request #222
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7c3771d
2015-02-24 02:37:58 -08:00
7c3771dd0f
Disable overlength-strings warnings.
2015-02-23 14:12:25 -08:00
ae55e850c7
Use faster byteswapping and avoid alignment-increasing casts.
2015-02-23 04:58:58 -08:00
2b4cf416e7
Use pkg-config always when possible, with failover to manual checks for libcrypto
2015-02-13 23:44:07 +00:00
f735446c4d
Convert the rest of the codebase to C89.
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Update build system to enforce -std=c89 -pedantic.
2015-01-25 17:44:10 +00:00
7277fd76e2
Remove GMP field implementation
2014-12-17 12:41:31 +01:00
1ba4a60a51
Configure options reorganization
2014-12-13 15:04:28 +01:00
3c0f246e7e
Merge pull request #157
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5190079
2014-12-12 15:48:28 +01:00
808dd9b3f5
Merge pull request #156
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8336040
2014-12-12 15:46:50 +01:00
28ade27da1
build: nuke bashisms
2014-12-11 21:24:35 -05:00
5190079e31
build: use subdir-objects for automake
2014-12-11 20:18:54 -05:00
8336040f79
build: disable benchmark by default
2014-12-11 20:09:22 -05:00
5f5a31fe0a
Merge pull request #149
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056ad31
2014-12-11 00:50:21 +01:00
056ad31064
Really compile with -O3 by default
2014-12-09 11:48:34 +01:00
74ad63a9e5
Merge pull request #146
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c88e2b8
2014-12-09 11:20:53 +01:00
1f46b006b7
build: fix __builtin_expect detection for clang
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Using AC_CHECK_DECL, the generated test tries to cast the function to void.
Clang doesn't allow that for builtins.
2014-12-08 22:35:02 -05:00
c88e2b8cca
Compile with -O3 by default
2014-12-09 01:30:43 +01:00
67935050e1
Convert YASM code into inline assembly
2014-12-04 13:54:01 +01:00
c35ff1ea44
Convert lambda splitter to pure scalar code.
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This enables the use of the endomorphism optimization without bignum.
2014-12-02 16:50:00 +01:00
597128d389
Make num optional
2014-12-01 12:38:38 +01:00
d1502eb459
Add secp256k1_scalar_inverse_var which delegates to GMP
2014-11-30 23:38:01 +01:00
e2274c58e6
build: osx: attempt to work with homebrew keg-only packages
2014-11-24 11:49:22 -05:00
a099073a7e
Enable warnings.
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Wno-unused-function is used for the moment because of the checking
functions which are currently only used by VERIFY but are not (yet?)
ifdefed out in normal builds.
2014-11-13 01:45:57 -08:00
6fac238f03
Use same build template as bitcoin. Add bitcoin_secp.m4.
2014-11-07 01:55:27 +13:00
db72c181bb
Add autoreconf warnings. Replace obsolete AC_TRY_COMPILE.
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Remove redundant checks (already done by LT_INIT).
2014-11-06 22:20:05 +13:00
1d52a8b155
Implementations for scalar without data-dependent branches.
2014-11-04 03:01:55 -08:00
53628757f3
warnings: enable quiet builds
2014-11-03 23:29:24 -08:00
520ba3c921
Remove OpenSSL bignum implementation
2014-10-31 02:10:13 -07:00
3ed6dfae69
Only use the libcrypto part of OpenSSL
2014-09-01 19:45:51 +02:00
Andrew Poelstra
Pieter Wuille
Cory Fields
Wladimir J. van der Laan
GreenAddress
Gregory Maxwell
mlmikael
Thomas Daede
evoskuil
Luke Dashjr
kiwigb