dartsv 2.1.0

Dart Library for interacting with the Bitcoin network. This library is especially well-suited for use in developing Flutter applications.

2.1.0

Bugfix : xpriv network byte decoding Bugfix : Script Interpreter fixes. Some of the OP_CODES were not properly processed

New Feature: Dedicated PreImage generator for working with OP_PUSH_TX-style covenants.

Change: The Transaction Builder utility class now places the change output as the first output by default.

2.0.2

Bugfix: Bigint amount incorrectly encoded during sighash

• Fixes a bug in the buffer conversion to a bigintLE during sighash preimage calculation

2.0.1

Bugfix: Uint64 error when using with Flutter Web

• Dart2JS does not handle Uint64. Remove all references to readUint64 and writeUint64 for handling big numbers.

2.0.0

• Removed uncessary FFI dependency

• Hardened path verification / validation

  • Added addtional regex check to the path validation string
  • Exposed ChildNumber class in the API

• Tightened up the fee calculations

  • Removed the hard requirement of a change output during txn validation
  • Removed the hard lower limit of 256 sats per transaction as a fee basis

• fixed decimal display of coins

• Solve/work-around for issue-54

  • Problem: When importing the lib into flutter and attempting to generate mnemonics, it fails with "Unsupported operation: Isolate.resolvePackageUri" FIX: Allow passing a function to the library to help resolve resources using Flutter AssetBundle APIs .

• Refactoring tests for clarity

• Dart SDK version minimum set to 2.17

2.0.0-rc2

• Large data Transaction fixes. There was a bug which prevented the crafting of large data transactions, i.e transactions with outputs that have PUSHDATA operations that pushed more than 65k bytes onto the stack.

2.0.0-rc1

Version 2.x is a major refactor of the internals. This includes several breaking changes from the 1.x branch of development.

The new features :

• A new TransactionBuilder class for composing Transactions
• Removal of the old Builder interface which was directly attached to the Transaction class
• A complete re-implementation of the Script Interpreter to align with the Bitcoin4J API
• The Sighash class now exposes the SigHash Pre-Image; useful when creating OP_PUSH_TX spending scripts.
• A new ScriptBuilder class to make it easy to create custom locking/unlocking scripts.

1.1.1

• downgraded test dependencies to for Flutter compatibility

1.1.0

• Exposed the DUST LIMIT and default feePerKb settings on the Transaction so user can manually change these.
• Also exported the TransactionInput class
• Added a property on the Transaction class that exposes the SigHash Preimage after signing.
• Add missing padding for Wif Format
• Add Javascript target support for Flutter/Web
• added additional test coverage for signatures
• added typing and convenience methods to HD key management
• Removed the inline code example
• Dart Version bump to include the 3.x branch

1.0.2

• Added convenience method on HDPublicKey for getting SVPublicKey
• Strongly typed hexadecimal string returned for xprivkey in HDPrivateKey

1.0.1

Resolved Null-safety warnings on project build

Building an example project threw up some warnings related to the
pointycastle primitives and null-safety. I've made modifications to library
implementation to resolve these compiler warnings.

1.0.0

• Null-Safety Update
• All dependencies have been upgraded or replaced with null-safe equivalents.
• Minimum Dart version is now 2.12.2

0.4.3

• Bugfix: Padded s-values to prevent invalid signatures
• Bugfix: Force 256-bit Private Keys to prevent invalid WIF exports
• Update: Updated example code to import latest major version of lib

0.4.2

• Bugfix: DataBuilder has script construction error for PUSHDATA transactions.

0.4.1

• Bugfix: Bitcoin-Signed-Messages sometimes generate Signatures with short r-values of only 62 bytes length. This causes compact signatures to fail verification. This is now fixed.

0.4.0

• Fixed a script behaviour bug. When using "add()" to update the SVScript's contents the "toHex()" method failed to serialize the additional content.
• Added a method to support generic data-only Locking Script Builders.
• Upgraded the cryptographic library dependency to the new PointyCastle 2.0.1

0.3.3

• Added Electrum-style ECIES (elliptic curve integrated encryption scheme) support

0.3.2

• API Exports
• Bug fix on testnet address encoding length
• DataBuilder modifications
• Added detection to TransactionOutput for P2PKH output
• Downgraded the required SDK version to 2.7.0. Aqueduct chokes on Dart 2.8+

0.3.1

New Feature

• Added DataLockBuilder to allow composing a simple data output script

Bug Fixes

• Bug fix submited by chen610620 for index bug on signing Transaction Inputs. The bug prevented signing of inputs other than the first one.

0.3.0

This represents a rather major refactor of the way in which the Script Builder
interface works. I have completely decoupled the creation of Custom Scripts
from the SDK internals.

NOTE: This release is not backwards-compatible with earlier versions
of the SDK, and contains breaking changes. Please see below.

What's New

• P2PKHUnlockBuilder, P2PKHLockBuilder
• P2MSUnlockBuilder, P2MSLockBuilder
• P2SHUnlockBuilder, P2SHLockBuilder
• P2PKLockBuilder, P2PKUnlockBuilder
• Deep refactor of the way that TransactionInput processes scriptSig
• Bugfix related to script serialization
• New API on SVScript to parse and serialize to ASM format
• Resolved one bitcoind MultiSig test vector which failed to pass (it was the last holdout)

Please note that this update makes small but important changes to how one composes a
Transaction instance in conjunction with an UnlockingScriptBuilder and a LockingScriptBuilder
instance. Review the example code and test cases to familiarize yourself with the new API.

0.2.5-RC1

• Added CLI example app

0.2.4-RC1

• Additional test coverage for Signatures
• Minor code refactor to improve code readability in line with linter suggestions

0.2.3-RC1

• Minor code refactor to improve code readability in line with linter suggestions

0.2.1-RC1

• Minor code refactor to improve code readability in line with linter suggestions

0.2.0-RC1

• Completed the API documentation
• Small API changes and cleanup

0.1.0-RC1

• Library is now functionally complete
• Script Interpreter Implementation is complete
• Handling of Raw Blocks has been implemented
• Bip39 mnemonics now has complete test coverage
• Minor updates to various APIs

0.1.0-alpha2

• Added support for contributed Bip39 mnemonics
• Added support for Bitcoin Signed Messages

0.1.0-alpha

• Initial Release