a20940b37c
Please reviewthis commit *extremely thoroughly*. This commit changed how certain transaction size calculations are done. This altered fee estiimation for certain elements transactions, and caused a lot of things to break in the `wallet_bumpfee` functional test. After *extensive* work (~10 hours), I managed to figure all this out and properly reconcile the functional test to work with the new fee calculations. However, the original bitcoin commit didn't have any changes to this functional test. So, it's also simply possible that I may have made an actual bug and these fee issues I was seeing in the functional test were pointing at this bug. I'm not sure if there is a bug. I don't think so... I think the transaction estimations just got bigger in certain cases. But... please verify this. Look into the diff of this commit, and compare how use_max_sig used to be calculated in a bunch of different ways for different use cases, but is now being calculated only once (inside of DummySignInput), in the same way for all use cases. Did I accidentally introduce a bug there? In other words... I'm not certain about the wallet changes here. Please double and triple check them. Thanks! |
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Elements Project blockchain platform
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.
- Announcement of Confidential Assets
- Confidential Assets Whitepaper to be presented April 7th at Financial Cryptography 2017 in Malta
- Confidential Assets Tutorial
- Confidential Assets Demo
- Elements Code Tutorial covering blockchain configuration and how to use the main features.
Features of the Elements blockchain platform
Compared to Bitcoin itself, it adds the following features:
- Confidential Assets
- Confidential Transactions
- Federated Two-Way Peg
- Signed Blocks
- Additional opcodes
Previous elements that have been integrated into Bitcoin:
- Segregated Witness
- Relative Lock Time
Elements deferred for additional research and standardization:
Additional RPC commands and parameters:
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.
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