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When extra entropy is not specified by the caller, CKey::Sign will
now always create a signature that has a low R value and is at most
70 bytes. The resulting signature on the stack will be 71 bytes when
the sighash byte is included.
Using low R signatures means that the resulting DER encoded signature
will never need to have additional padding to account for high R
values.
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18f690ec2f7eb1b4aa51825bfed0cbfdadc93ac7 wallet: shuffle coins before grouping, where warranted (Karl-Johan Alm)
Pull request description:
Coins are randomly shuffled in coin selection to avoid unintentional privacy leaks regarding the user's coin set. For the case where a user has a lot of coins with the same destination, these will be grouped into groups of 10 *before* the shuffling.
It is unclear whether this has any implications at all, but this PR plugs the potential issue, if there ever is one, by shuffling the coins before they are grouped.
Issue brought up in https://github.com/bitcoin/bitcoin/pull/12257#discussion_r204554549
Tree-SHA512: fb50ed4b5fc03ab4853d45b76e1c64476ad5bcd797497179bc37b9262885c974ed6811159fd8e581f1461b6cc6d0a66146f4b70a2777c0f5e818d1322e0edb89
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Issue brought up in https://github.com/bitcoin/bitcoin/pull/12257\#discussion_r204554549
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Make sure that translations are synchronized with transifex before the
branch-off point to minimize the difference and prevent duplicate work.
Tree-SHA512: 41e71eaf14094606fd90011d035c551a635d5a715f865a49841dbe2b54a76b7fbf59a7918f86e5fd80a717e2934a9613fe463391fd01848d0a01e5c4e7e7fef0
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5654efb187d24eb29a343c720e3937b01457c8b7 Ported usage of deprecated optparse module to argparse module (Kvaciral)
Pull request description:
The optparse module is deprecated since Python 2,7/3.2 . Recommend usage of the argparse module which improves upon optparse.
Tree-SHA512: ffd0e3e6f3babef1675226b107eeb7a6bab6e5199de572703da9d94e1f69c70d1c9abc353e9664b40670bb4976c06964bb2606deee52f5dfcc619f336ceb8cf8
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fafe73a626 qa: Raise feature_help timeout to 5s (MarcoFalke)
faabd7bc47 qa: Use files for stdout/stderr to support Windows (MarcoFalke)
facb56ffaf qa: Run gen_rpcauth with sys.executable (MarcoFalke)
fada8966c5 qa: Close stdout and stderr file when node stops (MarcoFalke)
Pull request description:
### qa: Close stdout and stderr file when node stops
Since these files are potentially deleted by the test framework for cleanup, they should be closed first. Otherwise this will lead to errors on Windows when the tests finish successfully.
Side note: After the patch, it is no longer possible to reopen the file on Windows (see https://docs.python.org/3/library/tempfile.html#tempfile.NamedTemporaryFile)
### qa: Run gen_rpcauth with sys.executable
Similar to `test_runner.py`, the `sys.executable` needs to be passed down into subprocesses to pass on native Windows. (Should have no effect on Linux)
### qa: Use files for stdout/stderr to support Windows
It seems that using PIPE is not supported on Windows. Also, it is easier to just use the files that capture the stdout and stderr within the test node class.
Tree-SHA512: ec675012b10705978606b7fcbdb287c39a8e6e3732aae2fa4041d963a3c6993c6eac6a9a3cbd5479514e7d8017fe74c12235d1ed6fed2e8af8f3c71981e91864
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fa85c985ed qa: Add p2p_invalid_locator test (MarcoFalke)
Pull request description:
Should not be merged *before* #13907
Tree-SHA512: a67ca407854c421ed20a184d0b0dc90085aed3e3431d9652a107fa3022244767e67f67e50449b7e95721f56906836b134615875f28a21e8a012eb22cfe6a66a5
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fa31ca0c22 qa: Remove redundant checkmempool/checkblockindex extra_args (MarcoFalke)
Pull request description:
They are already enabled by default for regtest:
https://github.com/bitcoin/bitcoin/blob/df9f71274645a917e2578c52a1c59745bce8112d/src/init.cpp#L1002-L1007
Closes #13912. CC #12138
Tree-SHA512: b11a3e8cc4715569f917ab89132f8c8dcae64aebcd7a34182675f86cf7f6e207e3187b7ea01a56c92c8c3af76122b6b995e84f533e134676863f8953dc1f0574
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bb5b1c0b2d [Docs] upgrade rescan time warning from minutes to >1 hour (Mason Simon)
Pull request description:
When I rescanned just now it took well over an hour. The time warning "may take minutes" didn't prepare me for that.
```
2018-08-08T03:10:17Z [wallet] Still rescanning. At block 174747. Progress=0.008341
2018-08-08T03:11:17Z [wallet] Still rescanning. At block 204233. Progress=0.024533
2018-08-08T03:12:17Z [wallet] Still rescanning. At block 221170. Progress=0.038340
...
2018-08-08T04:16:17Z [wallet] Still rescanning. At block 524815. Progress=0.957105
2018-08-08T04:17:17Z [wallet] Still rescanning. At block 528572. Progress=0.971323
2018-08-08T04:18:17Z [wallet] Still rescanning. At block 532458. Progress=0.986824
```
This is on a 4-core 4ghz system with a 7200rpm drive.
Tree-SHA512: 722ccf566bfd6a3381fa173e08849cb676fe4c1f1cb2c4b86b07df2a5dc1ca0d54797cbe8fd606cdc2c60fef2be7c98e052460decdac2132ba759cff822132e8
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227d27e70c Use pushKV in some new PSBT RPCs. (Daniel Kraft)
Pull request description:
Most of the code uses `UniValue::pushKV` where appropriate, but some new RPC code related to PSBTs did not. This fixes those places - after this change, there are no remaining source files I could find that contain `push_back(Pair(`.
Tree-SHA512: d6567cf144d05d7e42276bd66ff4cd44413328f985772d11bb9d7339d32ab7c3438d4bb0040a37e75f8d193c610b08fa971073935885e0a178546aa045daf9fa
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Most of the code uses UniValue::pushKV where appropriate, but some new
RPC code related to PSBTs did not.
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1f87c372b5 Simplify comparison in rpc_blockchain.py. (Daniel Kraft)
Pull request description:
The test for `gettxoutsetinfo` in `rpc_blockchain.py` verifies that the result is the same as before after invalidating and reconsidering a block. The comparison has to exclude the `disk_size` field, though, as it is not deterministic.
Instead of comparing all the other fields for equality, this change explicitly removes the `disk_size` field and then compares the full objects. This makes the intent more explicit (compare everything except for `disk_size`, not compare just a given list of fields) and also the code simpler.
Tree-SHA512: 3c376a8836b62988fb2f0117c9ca65de64a33bf3cd4980a123de30bf5e7b7a48eda477b25e03d672ff076e205c698e83432469156caa0f0f3ebbb0480f0dd77d
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The test for gettxoutsetinfo in rpc_blockchain.py verifies that the
result is the same as before after invalidating and reconsidering a
block. The comparison has to exclude the 'disk_size' field, though, as
it is not deterministic.
Instead of comparing all the other fields for equality, this change
explicitly removes the 'disk_size' field and then compares the full
objects. This makes the intent more explicit (compare everything except
for disk_size, not compare just a given list of fields) and also the
code simpler.
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e254ff5d53b79bee29203b965fca572f218bff54 Introduce a maximum size for locators. (Gregory Maxwell)
Pull request description:
The largest sensible size for a locator is log in the number of blocks.
But, as noted by Coinr8d on BCT a maximum size message could encode a
hundred thousand locators. If height were used to limit the messages
that could open new attacks where peers on long low diff forks would
get disconnected and end up stuck.
Ideally, nodes first first learn to limit the size of locators they
send before limiting what would be processed, but common implementations
back off with an exponent of 2 and have an implicit limit of 2^32
blocks, so they already cannot produce locators over some size.
Locators are cheap to process so allowing a few more is harmless,
so this sets the maximum to 64-- which is enough for blockchains
with 2^64 blocks before the get overhead starts increasing.
Tree-SHA512: da28df9c46c988980da861046c62e6e7f93d0eaab3083d32e408d1062f45c00316d5e1754127e808c1feb424fa8e00e5a91aea2cc3b80326b71c148696f7cdb3
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The largest sensible size for a locator is log in the number of blocks.
But, as noted by Coinr8d on BCT a maximum size message could encode a
hundred thousand locators. If height were used to limit the messages
that could open new attacks where peers on long low diff forks would
get disconnected and end up stuck.
Ideally, nodes first first learn to limit the size of locators they
send before limiting what would be processed, but common implementations
back off with an exponent of 2 and have an implicit limit of 2^32
blocks, so they already cannot produce locators over some size.
This sets the limit to an absurdly high amount of 101 in order to
maximize compatibility with existing software.
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ec749b1bcdf2483b642fb51d635800e272c68ba6 Squashed 'src/leveldb/' changes from 64052c76c5..524b7e36a8 (MarcoFalke)
Pull request description:
For review:
```sh
git fetch https://github.com/bitcoin-core/leveldb
./test/lint/git-subtree-check.sh src/leveldb
```
Closes #13860
Tree-SHA512: 9d13384fe35e7144b4a7fca57efe77b0cc5295952da4a397e4c6d8aa3f8043d5113fccedd3ae1dcaa3d2649e732e5f57a71504847946e055aa4dc8c3780e29fc
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Merge commit 'ec749b1bcdf2483b642fb51d635800e272c68ba6' into HEAD
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524b7e36a8 Merge #19: Increase maximum read-only mmap()s used from 1000 to 4096 on 64-bit systems
4874cb8d3e Increase maximum number of read-only mmap()s used from 1000 to 4096 on 64 bit systems.
git-subtree-dir: src/leveldb
git-subtree-split: 524b7e36a8e3bce6fcbcd1b5df09024283f325ba
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44bbceeef1 [Tests] Cleanup feature_block.py, remove unnecessary PreviousSpendableOutput object (Conor Scott)
736f941424 [Tests] Cleanup extra instances of create_transaction (Conor Scott)
157651855f [Tests] Rename create_tx and move to blocktools.py (Conor Scott)
Pull request description:
There currently exist seven ([1](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_cltv.py#L52-L60), [2](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_csv_activation.py#L88-L95) [3](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_dersig.py#L40-L48), [4](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_nulldummy.py#L100-L108), [5](https://github.com/bitcoin/bitcoin/blob/master/test/functional/test_framework/util.py#L529-L535), [6](https://github.com/bitcoin/bitcoin/blob/master/test/functional/test_framework/blocktools.py#L120-L129), [7](https://github.com/bitcoin/bitcoin/blob/master/test/functional/feature_block.py#L1218-L1220)) implementations of a function called something similar to `create_transaction` in the functional tests, some of which are exact copies of each other.
This PR aims to clean this up into [three different cases implemented in blocktools.py](https://github.com/conscott/bitcoin/blob/create_tx_cleanup/test/functional/test_framework/blocktools.py#L121-L149)
1. `create_tx_with_script`: Return transaction object spending generic tx output optionally specifying scriptSig and scriptPubKey
2. `create_transaction`: Return transaction object spending coinbase tx
2. `create_raw_transaction`: Return raw transaction (hex string) spending coinbase tx
I am not committed to any of these function names, so I'll gladly take suggestions on there.
Additionally there are some related cleanups to feature_block.py tests, specifically removing the [PreviousSpendableOutput](https://github.com/conscott/bitcoin/blob/master/test/functional/feature_block.py#L51-L54) object, which seems like an unnecessary layer given that every instance spends the 0 output.
Tree-SHA512: 63c6233b6f0942c81ba1ca67ea6770809b8c9409314c6d4cf8e5a3991cb9ee92b22bebe88c0dde45cd71e754eb351230c4c404b70ff118f5f43c034452ada65c
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object
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c4a884d555 Trivial: Revert translated string change, clarify wallet log messages (Pierre Rochard)
Pull request description:
Fixes https://github.com/bitcoin/bitcoin/pull/12992 post-merge nits from @jnewbery
Tree-SHA512: 002d8a69b489fd216e15b7d6200d7117c489b32405d5e9f514f120d43113fd97ca2f235452b0093e0760bc03baf714edc4564ae14af8456e1b2a54f83c577bf3
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fa5587fe71 qa: wait_for_verack by default (MarcoFalke)
Pull request description:
This removes the need to do so manually every time a connection is added.
Tree-SHA512: a46c92cb4df41e30778b42b9fd3dcbd8d2d82aa7503d1213cb1c1165034f648d8caee01c292e2d87d05b0f71696996eef5be8a753f35ab49e5f66b0e3bf29f21
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fa8527ffec wallet: Catch filesystem_error and raise InitError (MarcoFalke)
Pull request description:
Fixes #13754 by restoring the previous behaviour
Tree-SHA512: f64052e89f6b332be395df2a5ea6f227c213fa2f38e415e83f30a4fad0938e947e5cddff7902368a43c07be135955a31b90f7eac5a46875c58d54ea95f87f6e6
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faab63111d8f27335aa1f09c1a48da3be45135de shutdown: Stop threads before resetting ptrs (MarcoFalke)
Pull request description:
On shutdown some threads would continue to run after or during a pointer reset. This leads to occasional segfaults on shutdown.
Fix this by resetting the smart pointers after all threads that might read from them have been stopped.
This should fix:
* A segfault in the txindex thread, that occurs when the txindex destructor is done, but the thread was not yet stopped (as this is done in the base index destructor)
* A segfault in the scheduler thread, which dereferences conman. (e.g. CheckForStaleTipAndEvictPeers)
Tree-SHA512: abbcf67fadd088e10fe8c384fadfb90bb115d5317145ccb5363603583b320efc18131e46384f55a9bc574969013dfcbd08c49e0d42c004ed7212eca193858ab2
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3fc20632a3ad30809356a58d2cf0ea4a4ad4cec3 qt: Set BLOCK_CHAIN_SIZE = 220 (DrahtBot)
2b6a2f4a28792f2fe9dc1be843b1ff1ecae35e8a Regenerate manpages (DrahtBot)
eb7daf4d600eeb631427c018a984a77a34aca66e Update copyright headers to 2018 (DrahtBot)
Pull request description:
Some trivial maintenance to avoid having to do it again after the 0.17 branch off.
(The scripts to do this are in `./contrib/`)
Tree-SHA512: 16b2af45e0351b1c691c5311d48025dc6828079e98c2aa2e600dc5910ee8aa01858ca6c356538150dc46fe14c8819ed8ec8e4ec9a0f682b9950dd41bc50518fa
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23fbbb100f63cb621b4b901dac0c0f16d7d74bc7 wallet: sum ancestors rather than taking max in output groups (Karl-Johan Alm)
Pull request description:
This is pointed out in https://github.com/bitcoin/bitcoin/pull/12257#discussion_r204549758.
Basically, the ancestors gives an indication as to how many ancestors the resulting transaction will have, which is more precise when summing up the values, rather than taking the maximum, since all the coins in the group will become ancestors if selected.
Tree-SHA512: 0588c4b6059669650614817e041526a2ab89dda8c07fca8e077c7669dca1fed51cd164f7df56340840ab60285d48f3b140dcee64f64bf696b2dd4ab16d556a13
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3339d845354c9c357ec90505192748d9d639e72e [trivial] add doxygen-compatible comments to CAffectedKeysVisitor (Pierre Rochard)
Pull request description:
Tree-SHA512: 0003fde198a6977d0c8988efc8f76428f9e095009fddf131b07bd9809ef76a778c86bb2b1305e33df16101b6b703cf43eb6193462bb9f3687f98c1d9b109dd96
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13bb5cae31 Docs: fix GetWarnings docs to reflect behavior (Ben Woosley)
Pull request description:
In "gui", it returns all warnings, joined by a separator
In "statusbar", it returns the last warning set which seems notionally to be the most important, though that is debatable
Tree-SHA512: 5fc0dc68d143a040b7b893b7176188e2b064c2cf1d559420906e4de636e16e9ab7451a1b87603020a7a8f66d6b94f4ee6c7da2697efad879f9e6de9c0e0c9ac1
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In "gui", it returns all warnings, joined by a separator
In "statusbar", it returns just the first warning
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081f5b4e2baed28ffa3bf6ce11e0aec7156038c2 Docs: Improve "of" grammar (johnlow95)
Pull request description:
Tree-SHA512: 7227371372cd4cc0ec2dbbbf0947c63f63ba41f8c6f9f6909f1dd37a724bf09a60bc57037233cc282922bcbcf2aff3bfd35bef823bdf11ffe26ba990fa3f7e32
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