History

David Hill 0f57a41ed8 txscript: Add ScriptVerifyLowS to the standard flags We've already been generating lowS sigs for quite a while. This removes the malleability vector. This mimics Bitcoin Core commit 49dd5c629df0a08cf3b1ea8085c03312d1a81696		2015-10-09 15:30:12 -04:00
..
data	txscript: Consensus audit.	2015-05-06 09:41:50 -05:00
consensus.go	Revert "Move IsFinalizedTransaction to txscript."	2015-06-29 11:12:35 -04:00
doc.go	Relicense to the btcsuite developers.	2015-05-01 12:00:56 -05:00
engine.go	Integrate a valid ECDSA signature cache into btcd	2015-10-08 17:31:42 -07:00
engine_test.go	Integrate a valid ECDSA signature cache into btcd	2015-10-08 17:31:42 -07:00
error.go	txscript: Make error strings idiomatic.	2015-08-09 14:06:36 +01:00
example_test.go	Integrate a valid ECDSA signature cache into btcd	2015-10-08 17:31:42 -07:00
internal_test.go	txscript: Test consistency and cleanup.	2015-05-04 16:04:29 -05:00
log.go	Relicense to the btcsuite developers.	2015-05-01 12:00:56 -05:00
log_test.go	Relicense to the btcsuite developers.	2015-05-01 12:00:56 -05:00
opcode.go	Integrate a valid ECDSA signature cache into btcd	2015-10-08 17:31:42 -07:00
opcode_test.go	Relicense to the btcsuite developers.	2015-05-01 12:00:56 -05:00
README.md	Relicense to the btcsuite developers.	2015-05-01 12:00:56 -05:00
reference_test.go	Integrate a valid ECDSA signature cache into btcd	2015-10-08 17:31:42 -07:00
script.go	txscript: Optimize DisasmString function.	2015-09-28 12:57:53 -05:00
script_test.go	txscript: New function IsUnspendable	2015-08-03 10:10:23 -04:00
scriptbuilder.go	txscript: Convert to new scriptnum type.	2015-05-01 13:15:08 -05:00
scriptbuilder_test.go	txscript: Test consistency and cleanup.	2015-05-04 16:04:29 -05:00
scriptnum.go	txscript: Change makeScriptNum to take a length argument	2015-10-05 19:48:55 -04:00
scriptnum_test.go	txscript: Change makeScriptNum to take a length argument	2015-10-05 19:48:55 -04:00
sigcache.go	Integrate a valid ECDSA signature cache into btcd	2015-10-08 17:31:42 -07:00
sigcache_test.go	Integrate a valid ECDSA signature cache into btcd	2015-10-08 17:31:42 -07:00
sign.go	Fixed erroneous txscript.KeyClosure documentation.	2015-07-19 16:15:29 +01:00
sign_test.go	Integrate a valid ECDSA signature cache into btcd	2015-10-08 17:31:42 -07:00
stack.go	txscript: Change makeScriptNum to take a length argument	2015-10-05 19:48:55 -04:00
stack_test.go	txscript: Consensus audit.	2015-05-06 09:41:50 -05:00
standard.go	txscript: Add ScriptVerifyLowS to the standard flags	2015-10-09 15:30:12 -04:00
standard_test.go	txscript: Test consistency and cleanup.	2015-05-04 16:04:29 -05:00

README.md

txscript

[] (https://travis-ci.org/btcsuite/btcd)

Package txscript implements the bitcoin transaction script language. There is a comprehensive test suite. Package txscript is licensed under the liberal ISC license.

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

Documentation

[] (http://godoc.org/github.com/btcsuite/btcd/txscript)

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/btcsuite/btcd/txscript

Installation

$ go get github.com/btcsuite/btcd/txscript

Examples

[Standard Pay-to-pubkey-hash Script] (http://godoc.org/github.com/btcsuite/btcd/txscript#example-PayToAddrScript)
Demonstrates creating a script which pays to a bitcoin address. It also prints the created script hex and uses the DisasmString function to display the disassembled script.
[Extracting Details from Standard Scripts] (http://godoc.org/github.com/btcsuite/btcd/txscript#example-ExtractPkScriptAddrs)
Demonstrates extracting information from a standard public key script.
[Manually Signing a Transaction Output] (http://godoc.org/github.com/btcsuite/btcd/txscript#example-SignTxOutput)
Demonstrates manually creating and signing a redeem transaction.

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 the btcsuite developers. 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 txscript is licensed under the liberal ISC License.