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An alternative full node implementation of LBRY's blockchain written in Go (golang)
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Owain G. Ainsworth 421a213a4f Stop modifying the passed tx in NewScript. 
The only time we need to zero out scripts is for calcScriptHash which operates
on a deep copy anyway. This should make the tx passed to us unmodified now.
2013-06-20 20:10:05 +01:00
.gitignore Initial commit. 2013-06-12 16:22:01 -05:00
address.go Initial implementation. 2013-06-13 14:59:46 -05:00
address_test.go Initial implementation. 2013-06-13 14:59:46 -05:00
cov_report.sh Initial implementation. 2013-06-13 14:59:46 -05:00
doc.go Initial implementation. 2013-06-13 14:59:46 -05:00
internal_test.go Check that the pc validation code works ok. 2013-06-19 23:31:44 +01:00
LICENSE Initial implementation. 2013-06-13 14:59:46 -05:00
log.go Initial implementation. 2013-06-13 14:59:46 -05:00
opcode.go Fix reversed test bug with the max operations handling 2013-06-20 00:30:34 +01:00
opcode_test.go check that OP_CHECK_MULTISIG also triggers on too many ops 2013-06-20 01:21:12 +01:00
README.md Initial implementation. 2013-06-13 14:59:46 -05:00
script.go Stop modifying the passed tx in NewScript. 2013-06-20 20:10:05 +01:00
script_test.go Check that the pc validation code works ok. 2013-06-19 23:31:44 +01:00
stack.go int.Sign() in go will never return negative for zero. 2013-06-19 00:51:48 +01:00
stack_test.go add some testing for byte format in stack.PushInt() 2013-06-19 01:06:02 +01:00
test_coverage.txt check that OP_CHECK_MULTISIG also triggers on too many ops 2013-06-20 01:21:12 +01:00

README.md

btcscript

Package btcscript implements the bitcoin transaction scripts. There is a test suite which is aiming to reach 100% code coverage. See test_coverage.txt for the current coverage (using gocov). On a UNIX-like OS, the script cov_report.sh can be used to generate the report. Package btcscript is licensed under the liberal ISC license.

This package is one of the core packages from btcd, an alternative full-node implementation of bitcoin which is under active development by Conformal. Although it was primarily written for btcd, this package has intentionally been designed so it can be used as a standalone package for any projects needing to use or validate bitcoin transaction scripts.

Bitcoin Scripts

Bitcoin provides a stack-based, FORTH-like langauge for the scripts in the bitcoin transactions. This language is not turing complete although it is still fairly powerful. A description of the language can be found at https://en.bitcoin.it/wiki/Script

Sample Use

	pkscript := txS.TxOut[origintxidx].PkScript
	engine, err := btcscript.NewScript(sigScript, pkscript, txInIdx,
		txValidator, pver,
		timestamp.After(btcscript.Bip16Activation))
	err = engine.Execute()

Documentation

Full go doc style documentation for the project can be viewed online without installing this package by using the GoDoc site here.

You can also view the documentation locally once the package is installed with the godoc tool by running godoc -http=":6060" and pointing your browser to http://localhost:6060/pkg/github.com/conformal/btcscript

Installation

$ go get github.com/conformal/btcscript

TODO

  • Increase test coverage to 100%

GPG Verification Key

All official release tags are signed by Conformal so users can ensure the code has not been tampered with and is coming from Conformal. To verify the signature perform the following:

  • Download the public key from the Conformal website at https://opensource.conformal.com/GIT-GPG-KEY-conformal.txt

  • Import the public key into your GPG keyring:

    gpg --import GIT-GPG-KEY-conformal.txt

  • Verify the release tag with the following command where TAG_NAME is a placeholder for the specific tag:

    git tag -v TAG_NAME

License

Package btcscript is licensed under the liberal ISC License.