dcrd/dcrutil/txsort
jholdstock e3f7f58a68 multi: Don't use deprecated ioutil package.
As of go 1.16, the "io/ioutil" package is deprecated. All functionality
from "io/ioutil" has been moved to either the "io" or "os" packages.
2021-09-01 06:09:37 -05:00
..
testdata txsort: Implement stable tx sorting package. 2017-12-08 11:22:21 -06:00
doc.go txsort: Implement stable tx sorting package. 2017-12-08 11:22:21 -06:00
README.md multi: Update README.md files for go modules. 2021-01-22 14:39:23 -06:00
txsort_test.go multi: Don't use deprecated ioutil package. 2021-09-01 06:09:37 -05:00
txsort.go multi: Correct typos. 2019-08-22 10:20:03 -05:00

txsort

Build Status ISC License Doc

Package txsort provides stable transaction sorting.

This package implements a standard lexicographical sort order of transaction inputs and outputs. This is useful to standardize transactions for faster multi-party agreement as well as preventing information leaks in a single-party use case. It is a modified form of BIP69 which has been updated to account for differences with Decred-specific transactions.

The sort order for transaction inputs is defined as follows:

  • Previous transaction tree in ascending order
  • Previous transaction hash (treated as a big-endian uint256) lexicographically in ascending order
  • Previous output index in ascending order

The sort order for transaction outputs is defined as follows:

  • Amount in ascending order
  • Public key script version in ascending order
  • Raw public key script bytes lexicographically in ascending order

A comprehensive suite of tests is provided to ensure proper functionality.

Installation and Updating

This package is part of the github.com/decred/dcrd/dcrutil/v3 module. Use the standard go tooling for working with modules to incorporate it.

License

Package txsort is licensed under the copyfree ISC License.