txscript

Package txscript implements the bitcoin transaction script language. There is a comprehensive test suite.

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 language 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

Installation and Updating

$ go get -u github.com/bitweb-project/bted/txscript

Examples

• Standard Pay-to-pubkey-hash Script
  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
  Demonstrates extracting information from a standard public key script.

• Manually Signing a Transaction Output
  Demonstrates manually creating and signing a redeem transaction.

• Counting Opcodes in Scripts
  Demonstrates creating a script tokenizer instance and using it to count the number of opcodes a script contains.

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 bitweb-project 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 copyfree ISC License.