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An alternative full node implementation of LBRY's blockchain written in Go (golang)
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Josh Rickmar a5f81fc545 Add PayToPubKeyHashScript and SignatureScript functions. 
PayToPubKeyHashScript generates a new pay to pubkey hash script to use
as the pkScript when creating new transactions.  If the passed pubkey
hash is an invalid size, StackErrInvalidOpcode will be returned as an
error.

SignatureScript returns the signature script necessary to validate a
single input of a transaction.

This also adds sanity checking for serializing scripts into byte
slices.  If the length of a serialized opcode does not equal the
expected length, StackErrInvalidOpcode will be returned when unparsing
a []parsedOpcode.

New internal tests were added to verify checks for valid and invalid
parsed opcodes.
2013-10-01 12:50:22 -04:00
.gitignore Initial commit. 2013-06-12 16:22:01 -05:00
address.go fix ScriptToAddress when called with 0 length script. 2013-06-26 22:11:54 +01:00
address_test.go fix ScriptToAddress when called with 0 length script. 2013-06-26 22:11:54 +01:00
cov_report.sh Initial implementation. 2013-06-13 14:59:46 -05:00
doc.go Remove need for protocol version. 2013-08-05 18:11:34 -05:00
internal_test.go Add PayToPubKeyHashScript and SignatureScript functions. 2013-10-01 12:50:22 -04:00
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 Add PayToPubKeyHashScript and SignatureScript functions. 2013-10-01 12:50:22 -04:00
opcode_test.go Fix up some ErrorF strings in tests. 2013-08-06 18:00:05 +01:00
README.md Remove need for protocol version. 2013-08-05 18:11:34 -05:00
script.go Add PayToPubKeyHashScript and SignatureScript functions. 2013-10-01 12:50:22 -04:00
script_test.go Add PayToPubKeyHashScript and SignatureScript functions. 2013-10-01 12:50:22 -04:00
stack.go Add PayToPubKeyHashScript and SignatureScript functions. 2013-10-01 12:50:22 -04:00
stack_test.go gofmt 2013-06-21 01:33:56 +01:00
test_coverage.txt Add PayToPubKeyHashScript and SignatureScript functions. 2013-10-01 12:50:22 -04:00

README.md

btcscript

Package btcscript implements the bitcoin transaction scripts. There is a comprehensive test suite. test_coverage.txt contains the current coverage statistics (generated 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, 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.