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Dash - Reinventing Cryptocurrency
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Merge #6147: feat: aim to have at least 2 onion connections, guard them from eviction 
e775b74d5e docs: add release notes for 6147 (pasta)
127a4d23a5 feat: aim to have 2 onion connections when possible, guard them from eviction (pasta)

Pull request description:

  ## Issue being fixed or feature implemented
  In the past I've noticed that even when using `-proxy` over tor, I wouldn't actually gain any onion connections over time. This is even worse when using -onion. Sure it may expose an onion service, but you wouldn't gain any onion connections (in my experience)!

  The goal here is to minimize easy-ish censorship and improve network-wide resistance to partitioning. It is not unimaginable that port 9999 could be blocked at large scale. This could potentially result in severe partitioning, and subsequent issues. In an attempt to avoid this, we should always try to have at least 2 outbound onion connections when at all possible. Hopefully this also makes onion addresses gossip better.

  This also adds a benefit of p2p encryption for these peers. As a result, there is improved plausible deniability that you produced a transaction, as it is possible you received it over onion and simply rebroadcast it over ipv4.

  I don't think there is any real downside to this patch, stuff like masternode / quorum connections will still always happen over ipv4, but with this, blocks and transactions would continue to propogate across the network even if (non-onion) ipv4 traffic was all dropped.

  Arguably, it's not **ideal** to send so much traffic over tor, but hopefully as latency is higher, we will generally receive messages over ipv4 first and therefor not request them over the onion connections.

  ## What was done?
  We will always try to get 2 onion nodes (full or block only); and guard them from eviction

  ## How Has This Been Tested?
  Run a node; see over time that you start with 0 onion nodes, and over time you progress to having two of them!

  ## Breaking Changes
  None

  ## Checklist:
  - [x] I have performed a self-review of my own code
  - [x] I have commented my code, particularly in hard-to-understand areas
  - [ ] I have added or updated relevant unit/integration/functional/e2e tests
  - [ ] I have made corresponding changes to the documentation
  - [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_

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Tree-SHA512: cd15565751ae845302c71cac084ffba66340033d379ffa78d0aa6fa4ad8f65ddeccd55fa623dfaf7daeed5e38b5b2ec27683991275cf2b6edfbd8e114a1bfe60
2024-07-31 13:33:52 -05:00
.github chore: narrow score of clang-diff-format for dash specific files only 2024-03-24 00:41:24 +07:00
.tx fix: follow-up #5393 - should be used [dash.dash_ents] (#5472) 2023-07-01 14:16:50 +03:00
build-aux/m4 merge bitcoin#20201: pkg-config related cleanup 2024-06-25 13:39:57 +00:00
ci Merge #20012: rpc: Remove duplicate name and argNames from CRPCCommand 2024-07-16 00:14:14 +07:00
contrib chore: update seeds 2024-07-25 02:00:25 +07:00
depends Merge bitcoin/bitcoin#24156: build: Replace which command with command -v 2024-07-24 14:04:28 -05:00
doc docs: add release notes for 6147 2024-07-31 13:19:54 -05:00
share Merge #6111: backport: bitcoin-core/gui#154, #176, #221, #248, #251 - qt improvements and related fixes 2024-07-23 14:17:33 -05:00
src feat: aim to have 2 onion connections when possible, guard them from eviction 2024-07-31 13:19:52 -05:00
test Merge bitcoin/bitcoin#20583: rpc: Add missing BlockUntilSyncedToCurrentChain to wallet RPCs 2024-07-23 23:42:45 -05:00
.cirrus.yml Merge #21012: ci: Fuzz with integer sanitizer 2024-06-20 12:19:21 +07:00
.dockerignore build: add dash minimal development environment container 2021-12-21 12:43:37 +05:30
.editorconfig Merge #21123: code style: Add EditorConfig file 2021-07-16 10:04:09 -05:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore merge bitcoin#21336: Make .gitignore ignore src/test/fuzz/fuzz.exe 2024-02-06 08:39:51 -06:00
.gitlab-ci.yml chore: increase amount of build jobs from 4 to 8 for depends 2024-03-17 01:09:41 +07:00
.python-version partial bitcoin#27483: Bump python minimum version to 3.8 2023-05-11 09:18:48 -05:00
.style.yapf Merge #15533: test: .style.yapf: Set column_limit=160 2021-07-10 12:10:51 -05:00
autogen.sh Merge #17829: scripted-diff: Bump copyright of files changed in 2019 2023-12-06 11:40:14 -06:00
CMakeLists.txt chore: Added missing sources files in CMake (#5503) 2023-07-25 12:23:56 -05:00
configure.ac Merge #6113: backport: bitcoin#21613 -Wdocumentation and related fixes 2024-07-19 16:51:04 -05:00
CONTRIBUTING.md doc: replace gfd() function to recommendation to use git diff-range 2024-04-23 11:26:00 -05:00
COPYING docs: update license year range to 2024 (#5890) 2024-02-22 20:56:43 -06:00
INSTALL.md Dashify INSTALL.md and build-unix.md 2018-01-12 16:12:54 +01:00
libdashconsensus.pc.in revert dash#1432: Rename consensus source library and API 2022-08-09 14:16:28 +05:30
Makefile.am Merge #21012: ci: Fuzz with integer sanitizer 2024-06-20 12:19:21 +07:00
README.md doc: make build steps more prominent 2024-07-18 01:22:42 -06:00
SECURITY.md docs: update SECURITY.md supported versions 2024-07-16 15:32:39 +00:00

README.md

Dash Core staging tree

CI master develop
Gitlab Build Status Build Status

https://www.dash.org

For an immediately usable, binary version of the Dash Core software, see https://www.dash.org/downloads/.

Further information about Dash Core is available in ./doc/.

What is Dash?

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

For more information read the original Dash whitepaper.

License

Dash 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 meant to be stable. Development is normally done in separate branches. Tags are created to indicate new official, stable release versions of Dash Core.

The develop branch is regularly built (see doc/build-*.md for instructions) and tested, but is not guaranteed to be completely stable.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Build / Compile from Source

The ./configure, make, and cmake steps, as well as build dependencies, are in ./doc/ as well:

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. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, 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 Dash 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.