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Wladimir J. van der Laan c948dc8f42
Merge #12699: [wallet] Shuffle transaction inputs before signing
2fb9c1e shuffle selected coins before transaction finalization (Gregory Sanders)

Pull request description:

  Currently inputs are ordered based on COutPoint ordering, which while doesn't leak additional internal wallet state, likely further fingerprints the wallet as a Core wallet to observers.

  Note: This slightly changed behavior of `fundrawtransaction` in that the newly-appended inputs will now be shuffled rather than in outpoint-order. This does not break API compatibility.

  Simple shuffling of the coins being returned will hopefully allow the wallet to blend in a bit more, in lieu of additional data to find what other wallets are doing, or another standard, ala @gmaxwell's suggested of ordering via scriptPubKey.

Tree-SHA512: 70689a6eccf9fa7fc6e3d884f2eba4b482446a1e6128beff7a98f446d0c60f7966c5a6c55e9b0b3d73a9b539ce54889a26c7efe78ab7f34af386d5e4f3fa6df2
2018-03-26 17:10:29 +02:00
.github Make default issue text all comments to make issues more readable 2017-11-16 11:50:56 -05:00
.tx tx: Update transifex slug for 0.16 2018-01-24 16:35:40 +01:00
build-aux/m4 ax_boost_{chrono,unit_test_framework}.m4: take changes from upstream 2018-03-15 19:59:11 +01:00
contrib Apply hardening measurements in bitcoind systemd service file 2018-03-14 08:11:07 +01:00
depends Merge #12625: depends: biplist 1.0.3 2018-03-14 14:29:27 +01:00
doc Merge #12756: [config] Remove blockmaxsize option 2018-03-26 15:30:27 +02:00
share Increment MIT Licence copyright header year on files modified in 2017 2018-01-03 02:26:56 +09:00
src Merge #12699: [wallet] Shuffle transaction inputs before signing 2018-03-26 17:10:29 +02:00
test Merge #12756: [config] Remove blockmaxsize option 2018-03-26 15:30:27 +02:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore [build] .gitignore: add QT Creator artifacts 2017-12-22 12:37:00 +01:00
.travis.yml [CI]: bump travis timeout for make check to 50m 2018-03-23 15:58:43 -04:00
CONTRIBUTING.md Docs: Improve documentation on standard communication channels 2018-03-22 12:58:57 -07:00
COPYING [Trivial] Update license year range to 2018 2018-01-01 04:33:09 +09:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
Makefile.am Build: Add a makefile target for Doxygen documentation 2018-01-25 19:43:19 +01:00
README.md Docs: Improve documentation on standard communication channels 2018-03-22 12:58:57 -07:00
autogen.sh Add MIT license to autogen.sh and share/genbuild.sh 2016-09-21 23:01:36 +00:00
configure.ac Remove redundant checks for MSG_* from configure.ac 2018-03-15 20:02:00 +01:00
libbitcoinconsensus.pc.in Unify package name to as few places as possible without major changes 2015-12-14 02:11:10 +00:00

README.md

Bitcoin Core integration/staging tree

Build Status

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately useable, binary version of the Bitcoin Core software, see https://bitcoin.org/en/download, or read the original whitepaper.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built and tested, but is not guaranteed to be completely stable. Tags are created regularly to indicate new official, stable release versions of Bitcoin Core.

The contribution workflow is described in CONTRIBUTING.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The Travis CI system makes sure that every pull request is built for Windows, Linux, and OS X, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.

Translators should also subscribe to the mailing list.