8922295ae5
This adds a new package under dcrutil named txsort which 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
29 lines
1.1 KiB
Go
29 lines
1.1 KiB
Go
// Copyright (c) 2015 The btcsuite developers
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// Copyright (c) 2017 The Decred developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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/*
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Package txsort provides stable transaction sorting.
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Overview
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This package implements a standard lexicographical sort order of transaction
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inputs and outputs. This is useful to standardize transactions for faster
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multi-party agreement as well as preventing information leaks in a single-party
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use case. It is a modified form of BIP69 which has been updated to account for
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differences with Decred-specific transactions.
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The sort order for transaction inputs is defined as follows:
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- Previous transaction tree in ascending order
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- Previous transaction hash (treated as a big-endian uint256) lexicographically
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in ascending order
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- Previous output index in ascending order
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The sort order for transaction outputs is defined as follows:
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- Amount in ascending order
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- Public key script version in ascending order
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- Raw public key script bytes lexicographically in ascending order
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*/
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package txsort
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