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Steven Roose 5b2fe5563b
Merge #642: Dynamic federations 
f7905d6df Generalize the number of epochs old a peg-in can be and still be valid (Gregory Sanders)
b105ff45e feature_fedpeg.py: Run in various dynafed transition settings (Gregory Sanders)
feef196a2 Fix compilation of raw transaction operations with peg-in inputs (Gregory Sanders)
953dd82ea p2sh-wrap peg-in addresses if fedpeg_program is p2sh-wrapped (Gregory Sanders)
e2be2356d Refactor IsPAKValid to not magically acquire chainparams (Gregory Sanders)
ecdefc5cb Remove script/standard dependence of ContextualCheckDynaFedHeader (Gregory Sanders)
59bed57a1 Remove dyanfed.cpp's dependency on script/standard.h (Gregory Sanders)
50a2b599c After a reorg, boot all peg-ins and peg-outs from mempool (Gregory Sanders)
6000752a9 Enforce PAK checks on dynafed proposals (Gregory Sanders)
dce4cecdd Replace fedpeg template init check for pak one (Gregory Sanders)
afdf0239b Update python test framework for DynaFedParamEntry fedpeg program (Gregory Sanders)
95d8339f4 Add functional test for illegal proposals (Gregory Sanders)
1baad6bf5 Update dynafed functional test to new behavior (Gregory Sanders)
a3cf151de fixup proposal checks (Gregory Sanders)
04cc76743 getnewblockhex fills out proposal fedpeg program (Gregory Sanders)
44f55d36c Make future parent segwit versions in fedpegscripts be vacuously true (Gregory Sanders)
d7faffdca Add dynafed proposal restrictions (Gregory Sanders)
37f90ba50 Add description of NextBlockIsParameterTransition (Gregory Sanders)
d9387cb5d Remove misleading comment for ContextualCheckDynaFedHeader use (Gregory Sanders)
bd11097ce Add fedpeg_program field in dynafed header (Gregory Sanders)
4ad2b8018 CreatePAKListFromExtensionSpace just uses FromBytes for correctness (Gregory Sanders)
6a5eaa189 Remove short-circuit dynafed vote fail for readability (Gregory Sanders)
dddc040aa s/m_dyna_params/m_dynafed_params/ (Gregory Sanders)
6ed63c1fb Light explanation of dynamic federations fields (Gregory Sanders)
15996384d s/ConsensusParamEntry/DynaFedParamEntry/ (Gregory Sanders)
642260a12 s/m_sbs_wit_limit/m_signblock_witness_limit/ (Gregory Sanders)
b66804678 s/HF_MASK/DYNAFED_HF_MASK/ (Gregory Sanders)
0fd39edf5 s/d_params/dynafed_params/ (Gregory Sanders)
1779956e6 signrawtransaction* should use up to date fedpegscript for peg-in signing (Gregory Sanders)
47db75e39 Dynafed RPC support, tests, and deployment for custom chains (Gregory Sanders)
aac354b5b OP_TRUE outputs should be allowed to be segwit-ified by decodescript (Gregory Sanders)
055514b68 Have removeForBlock boot transactions when required (Gregory Sanders)
525b24cf5 Expose fedpeg fetching to consensus and mempool internals (Gregory Sanders)
4ac437b87 GetTransactionSigOpCost shouldn't need fedpegscript to evaluate (Gregory Sanders)
5097c3880 Add and update startup args for dynafed (Gregory Sanders)
24535d6a9 Add unused dynamic genesis block style in chainparams (Gregory Sanders)
d10c42a26 Create epoch length chainparam (Gregory Sanders)
b996a425e Set default of multi_data_permitted to enforce_pak (Gregory Sanders)
f6f6308c9 Correct comment about liquidv1 fedpeg matching template (Gregory Sanders)
4c00eb408 Miner should stop trying to account for old PAK system (Gregory Sanders)
0e10287f7 Add miner ability to make dynafed blocks (Gregory Sanders)
5d281e7e6 ContextualCheckBlockHeader: dynafed doesn't call CheckChallenge (Gregory Sanders)
9fe43cdf8 Introduce contextual block checks for dynafed (Gregory Sanders)
3605505c9 Enable pak enforcement at mempool/block level when appropriate (Gregory Sanders)
802a05519 ScriptHasValidPAKProof takes fedpeg as arg (Gregory Sanders)
89174e961 Remove old mempool-booting logic (Gregory Sanders)
edb865cc2 Remove standardness checks for PAK (Gregory Sanders)
804cd9f75 Update PAK internals, helper functions (Gregory Sanders)
16b87ba95 Disable PAK loading from configuration on init, disable pak test (Gregory Sanders)
918896d6f Add inactive versionbits dynafed deployment (Gregory Sanders)
0a8565bbf ReadBlockFromDisk: do genesis block check before block proof check (Gregory Sanders)
6f0d9244f Bump last old block version for versonbits due to elements (Gregory Sanders)
563cd93d4 Add python implementation of dynafed block serialization (Gregory Sanders)
8d3091bbc Deserialize merkle proofs without witness, which matters for dynafed (Gregory Sanders)
830f91723 Add fedpegscript-fetching helper (Gregory Sanders)
b56fe1495 calculate_contract: remove most template checks and assert in preperation for dynafed (Gregory Sanders)
fd63cee1a Add note on peg-in sigops (Gregory Sanders)
f17d7de52 Add dynafed helper functions (Gregory Sanders)
4aa5f991f Refactor block_proof to support dynafed (Gregory Sanders)
4e52f2c83 Add dynamic federation blockheader fields to chaindb serialization (Gregory Sanders)
a74accf7d Add dynamic federations blockheader serialization with HF bit (Gregory Sanders)
2845e7811 Define dynamic federations primitives (Gregory Sanders)

Pull request description:

  This is a proposal implementation of something myself and Andrew have been working on, to enable dynamic membership in the blocksigning set, fedpeg signing set, and under the same coordination mechanism, the PAK enforcement.

  At a really high level:

  1) If 4/5 of last N(what we call an epoch length) blocks signal desire for a change in the parameters of the system, they are replaced with the proposed. These changes can be proposed/driven by `getnewblockhex`.
  2) Once dynamic federations is active(versionbits deployment), signblockscripts can only be native segwit scripts, in other words, must be a version byte followed by the witness program. The blockheader now has a witness stack as well.
  3) The fedpegscript of last N epochs are both allowed as a grace period for users putting money into the system.
  4) PAK enforcement has been upgraded to consensus-enforcement once dynamic federations activates

  A design document is forthcoming.

Tree-SHA512: 26c6e05c85adb77345d8d481f20e8095bc2f9e5ad7b9a8824008a056637af7c6e87e522b038a6c6c108889d60b2fd1d6ecbd3e0afe2b696579000d18b0f1ecad
2019-09-06 12:02:28 +01:00
.github Get more info about GUI-related issue on Linux 2018-12-27 06:53:07 +02:00
.travis travis: Switch to ubuntu keyserver to avoid timeouts 2019-05-31 14:54:10 +01:00
.tx qt: Pre-0.18 split-off translations update 2019-02-04 15:24:37 +01:00
build-aux/m4 Bump minimum Qt version to 5.5.1 2019-02-14 11:12:30 +01:00
build_msvc Update msft build version too 2019-06-05 12:44:28 +02:00
contrib fix config err 2019-08-07 18:33:25 +08:00
depends Update zmq to 4.3.1 2019-01-18 10:25:14 +02:00
doc travis: Properly cache and error on timeout 2019-05-31 14:54:25 +01:00
share UPSTREAM MERGE BROKEN: Merge upstream commit '519b0bc5dc' into master 2019-05-17 16:17:09 +01:00
src Merge #642: Dynamic federations 2019-09-06 12:02:28 +01:00
test feature_fedpeg.py: Run in various dynafed transition settings 2019-09-05 10:51:09 -04:00
.appveyor.yml appveyor: Remove unused NDEBUG removal 2019-02-17 18:26:49 +08:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Squashed 'src/secp256k1/' changes from 43dd1f4..44db4d8 2019-06-06 11:40:35 +02:00
.python-version [test] Travis: enforce Python 3.4 support in functional tests 2018-12-12 10:39:32 +01:00
.travis.yml Squashed 'src/secp256k1/' changes from 43dd1f4..44db4d8 2019-06-06 11:40:35 +02:00
autogen.sh Add "export LC_ALL=C" to all shell scripts 2018-06-14 15:27:52 +02:00
configure.ac Squashed 'src/secp256k1/' changes from 43dd1f4..44db4d8 2019-06-06 11:40:35 +02:00
CONTRIBUTING.md UPSTREAM MERGE BROKEN: Merge upstream commit '519b0bc5dc' into master 2019-05-17 16:17:09 +01:00
COPYING [Trivial] Update license year range to 2019 2018-12-31 04:27:59 +01:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in Unify package name to as few places as possible without major changes 2015-12-14 02:11:10 +00:00
Makefile.am Squashed 'src/secp256k1/' changes from 43dd1f4..44db4d8 2019-06-06 11:40:35 +02:00
README.md Squashed 'src/secp256k1/' changes from 43dd1f4..44db4d8 2019-06-06 11:40:35 +02:00
SECURITY.md Add secure reporting document, link in README 2019-03-20 12:05:21 +00:00

README.md

Elements Project blockchain platform

Build Status

https://elementsproject.org

This is the integration and staging tree for the Elements blockchain platform, a collection of feature experiments and extensions to the Bitcoin protocol. This platform enables anyone to build their own businesses or networks pegged to Bitcoin as a sidechain or run as a standalone blockchain with arbitrary asset tokens.

Modes

Elements supports a few different pre-set chains for syncing. Note though some are intended for QA and debugging only:

  • Liquid mode: elementsd -chain=liquidv1 (syncs with Liquid network)
  • Bitcoin mainnet mode: elementsd -chain=main (not intended to be run for commerce)
  • Bitcoin testnet mode: elementsd -chain=testnet3
  • Bitcoin regtest mode: elementsd -chain=regtest
  • Elements custom chains: Any other -chain= argument. It has regtest-like default parameters that can be over-ridden by the user by a rich set of start-up options.

Confidential Assets

The latest feature in the Elements blockchain platform is Confidential Assets, the ability to issue multiple assets on a blockchain where asset identifiers and amounts are blinded yet auditable through the use of applied cryptography.

Features of the Elements blockchain platform

Compared to Bitcoin itself, it adds the following features:

Previous elements that have been integrated into Bitcoin:

  • Segregated Witness
  • Relative Lock Time

Elements deferred for additional research and standardization:

License

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

What is the Elements Project?

Elements is an open source, sidechain-capable blockchain platform. It also allows experiments to more rapidly bring technical innovation to the Bitcoin ecosystem.

Learn more on the Elements Project website

https://github.com/ElementsProject/elementsproject.github.io

Secure Reporting

See our vulnerability reporting guide