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651 Commits

Author SHA1 Message Date
Pieter Wuille 0c6ab2ff18 Introduce explicit lower-S normalization 
ECDSA signature verification now requires normalized signatures (with S in the
lower half of the range). In case the input cannot be guaranteed to provide this,
a new function secp256k1_ecdsa_signature_normalize is provided to preprocess it.
 2015-10-21 16:14:42 +02:00
Pieter Wuille fea19e7bb7 Add contrib/lax_der_parsing.h 
This shows a snippet of code to do lax DER parsing, without obeying to any
particular standard.
 2015-10-21 16:14:35 +02:00
Pieter Wuille 3bb9c44719 Rewrite ECDSA signature parsing code 
There are now 2 encoding formats supported: 64-byte "compact" and DER.
The latter is strict: the data has to be exact DER, though the values
inside don't need to be valid.
 2015-10-21 16:13:37 +02:00
Pieter Wuille fa57f1bdf1 Use secp256k1_rand_int and secp256k1_rand_bits more 
Update the unit tests to make use of the new RNG functions.
 2015-10-21 16:13:37 +02:00
Pieter Wuille 49b374985d Add new tests for the extra testrand functions 2015-10-21 16:13:37 +02:00
Pieter Wuille f684d7d987 Faster secp256k1_rand_int implementation 2015-10-21 16:13:37 +02:00
Pieter Wuille 251b1a62d3 Improve testrand: add extra random functions 
This commit adds functions:
* secp256k1_rand_bits, which works like secp256k1_rand32, but consumes
  less randomness
* secp256k1_rand_int, which produces a uniform integer over any range
* secp256k1_rand_bytes_test, which works like secp256k1_rand256_test
  but for arbitrary byte array
 2015-10-21 16:13:37 +02:00
Pieter Wuille 31994c8e5b
Merge pull request #338 
f79aa88 Bugfix: swap arguments to noncefp (Pieter Wuille)
 2015-10-21 16:11:44 +02:00
Pieter Wuille f79aa88373 Bugfix: swap arguments to noncefp 2015-10-21 03:40:37 +02:00
Pieter Wuille c98df263ed
Merge pull request #319 
67f7da4 Extensive interface and operations tests for secp256k1_ec_pubkey_parse. (Gregory Maxwell)
ee2cb40 Add ARG_CHECKs to secp256k1_ec_pubkey_parse/secp256k1_ec_pubkey_serialize (Gregory Maxwell)
 2015-10-14 14:32:26 +02:00
Gregory Maxwell 67f7da4087 Extensive interface and operations tests for secp256k1_ec_pubkey_parse. 
This also makes use of optional valgrind instrumentation if -DVALGRIND
 is set.

This also moves secp256k1.c above secp256k1.h in tests.c or otherwise
 we get non-null macros on the public functions which may defeat some
 of the VERIFY checks.
 2015-10-13 19:47:55 +00:00
Gregory Maxwell ee2cb4007d Add ARG_CHECKs to secp256k1_ec_pubkey_parse/secp256k1_ec_pubkey_serialize 
This also makes secp256k1_ec_pubkey_parse's init of pubkey more unconditional.
 2015-10-13 19:39:58 +00:00
Pieter Wuille 7450ef171d
Merge pull request #328 
7c823e3 travis: fixup module configs (Cory Fields)
 2015-10-11 17:16:34 +02:00
Pieter Wuille 68a3c766ad
Merge pull request #329 
b13d749 Fix couple of typos in API comments (Gustav Simonsson)
 2015-10-11 17:15:32 +02:00
Pieter Wuille 98135ee3d2
Merge pull request #332 
37100d7 improve ECDH header-doc (Jonas Schnelli)
 2015-10-11 16:47:10 +02:00
Jonas Schnelli 37100d7284
improve ECDH header-doc 
- use pubkey instead of point
- use privkey instead of scalar
 2015-10-05 20:50:59 +02:00
Gustav Simonsson b13d749947 Fix couple of typos in API comments 2015-09-30 17:23:13 +02:00
Cory Fields 7c823e3030 travis: fixup module configs 2015-09-29 20:37:50 -04:00
Pieter Wuille cc3141a003
Merge pull request #325 
338fc8b Add API exports to secp256k1_nonce_function_default and secp256k1_nonce_function_rfc6979. (Gregory Maxwell)
 2015-09-30 00:51:46 +02:00
Pieter Wuille ee58fae4f8
Merge pull request #326 
213aa67 Do not force benchmarks to be statically linked. (Gregory Maxwell)
 2015-09-30 00:49:38 +02:00
Gregory Maxwell 213aa67397 Do not force benchmarks to be statically linked. 
Libtool will do the right thing and use whatever is available
 based on --enable-shared/--enable-static.

This also means that some of the things we build actually
 test the dynamic library.
 2015-09-29 19:03:51 +00:00
Gregory Maxwell 338fc8bd71 Add API exports to secp256k1_nonce_function_default and secp256k1_nonce_function_rfc6979. 2015-09-29 18:56:21 +00:00
Pieter Wuille 52fd03f1ba
Merge pull request #320 
9f6993f Remove some dead code. (Gregory Maxwell)
 2015-09-28 21:48:09 +02:00
Gregory Maxwell 9f6993f370 Remove some dead code. 2015-09-28 05:43:51 +00:00
Pieter Wuille 357f8cd8f5
Merge pull request #314 
118cd82 Use explicit symbol visibility. (Gregory Maxwell)
4e64608 Include public module headers when compiling modules. (Gregory Maxwell)
 2015-09-25 21:36:18 +02:00
Gregory Maxwell 118cd8210f Use explicit symbol visibility. 
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
Gregory Maxwell 4e64608082 Include public module headers when compiling modules. 
Also fix the nullness requirements for schnorr nonce-pair generation.
 2015-09-24 21:50:06 +00:00
Pieter Wuille 1f414378b8
Merge pull request #316 
2b199de Use the explicit NULL macro for pointer comparisons. (Gregory Maxwell)
 2015-09-24 19:36:54 +02:00
Pieter Wuille fe0d463494
Merge pull request #317 
cfe0ed9 Fix miscellaneous style nits that irritate overactive static analysis. (Gregory Maxwell)
 2015-09-24 19:34:39 +02:00
Gregory Maxwell cfe0ed916a Fix miscellaneous style nits that irritate overactive static analysis. 
Also increase consistency with how overflow && zero is tested, and
 avoid some mixed declarations and code that GCC wasn't detecting.
 2015-09-24 08:42:37 +00:00
Gregory Maxwell 2b199de888 Use the explicit NULL macro for pointer comparisons. 
This makes it more clear that a null check is intended. Avoiding the
 use of a pointer as a test condition alse increases the type-safety
 of the comparisons.

(This is also MISRA C 2012 rules 14.4 and 11.9)
 2015-09-23 22:00:43 +00:00
Pieter Wuille 9e9051687c
Merge pull request #294 
dd891e0 Get rid of _t as it is POSIX reserved (Pieter Wuille)
 2015-09-22 21:26:34 +02:00
Pieter Wuille dd891e0ed5 Get rid of _t as it is POSIX reserved 2015-09-21 21:03:37 +02:00
Pieter Wuille 201819b3bc
Merge pull request #313 
912f203 Eliminate a few unbraced statements that crept into the code. (Gregory Maxwell)
 2015-09-21 20:56:31 +02:00
Gregory Maxwell 912f203fc5 Eliminate a few unbraced statements that crept into the code. 
Also avoids some easily avoided multiple-returns.
 2015-09-21 17:21:35 +00:00
Pieter Wuille eeab823b70
Merge pull request #299 
486b9bb Use a flags bitfield for compressed option to secp256k1_ec_pubkey_serialize and secp256k1_ec_privkey_export (Luke Dashjr)
05732c5 Callback data: Accept pointers to either const or non-const data (Luke Dashjr)
1973c73 Bugfix: Reinitialise buffer lengths that have been used as outputs (Luke Dashjr)
788038d Use size_t for lengths (at least in external API) (Luke Dashjr)
c9d7c2a secp256k1_context_set_{error,illegal}_callback: Restore default handler by passing NULL as function argument (Luke Dashjr)
9aac008 secp256k1_context_destroy: Allow NULL argument as a no-op (Luke Dashjr)
64b730b secp256k1_context_create: Use unsigned type for flags bitfield (Luke Dashjr)
 2015-09-20 04:59:30 +02:00
Luke Dashjr 486b9bb8ce Use a flags bitfield for compressed option to secp256k1_ec_pubkey_serialize and secp256k1_ec_privkey_export 2015-09-19 19:33:30 +00:00
Luke Dashjr 05732c5a5f Callback data: Accept pointers to either const or non-const data 2015-09-19 19:33:28 +00:00
Luke Dashjr 1973c7379e Bugfix: Reinitialise buffer lengths that have been used as outputs 2015-09-19 19:33:24 +00:00
Luke Dashjr 788038d323 Use size_t for lengths (at least in external API) 2015-09-19 19:33:21 +00:00
Luke Dashjr c9d7c2a484 secp256k1_context_set_{error,illegal}_callback: Restore default handler by passing NULL as function argument 2015-09-19 19:32:52 +00:00
Luke Dashjr 9aac008038 secp256k1_context_destroy: Allow NULL argument as a no-op 2015-09-19 19:32:48 +00:00
Luke Dashjr 64b730bc3f secp256k1_context_create: Use unsigned type for flags bitfield 2015-09-19 19:32:21 +00:00
Pieter Wuille cb04ab5e3c
Merge pull request #309 
81e45ff Update group_impl.h (GSongHashrate)
 2015-09-19 21:25:51 +02:00
Pieter Wuille a55166950f
Merge pull request #295 
c996d53 Print success (Pieter Wuille)
 2015-09-19 21:24:31 +02:00
GSongHashrate 81e45ff9d1 Update group_impl.h 2015-09-17 22:38:21 +01:00
Pieter Wuille 85e3a2cc08
Merge pull request #112 
2b4cf41 Use pkg-config always when possible, with failover to manual checks for libcrypto (Luke Dashjr)
 2015-09-04 20:24:42 +02:00
Pieter Wuille b2eb63b2d7
Merge pull request #293 
dc0ce9f [API BREAK] Change argument order to out/outin/in (Pieter Wuille)
 2015-09-04 20:22:49 +02:00
Pieter Wuille dc0ce9fc41 [API BREAK] Change argument order to out/outin/in 2015-09-04 17:45:57 +02:00
Pieter Wuille 6d947cadcc
Merge pull request #298 
6da1446 build: fix parallel build (Cory Fields)
 2015-09-04 17:29:00 +02:00