shuffle transaction inputs and outputs #272
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Change strategy regarding transaction inputs/outputs ordering. The node shuffles inputs and outputs, while Electrum was sorting them in a deterministic order. Both strategies are viable ways of improving user privacy, but the randomization helps also users of other wallets. If most wallets apply randomization, then the few wallets that don't will stand out less. It will be difficult to guess if a simple transaction (one or two inputs, two outputs) that matches some sorting rules did it intentionnaly or by random luck.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Change strategy regarding transaction inputs/outputs ordering.
The Bitcoin ABC wallet shuffles inputs and outputs, while Electrum was sorting them in a deterministic order. Both strategies are viable ways of improving user privacy and making wallet fingerprinting harder, but the randomization helps also users of other wallets. If most wallets apply randomization, then the wallets that don't will stand out less. It will be difficult to guess if a simple transaction (one or two inputs, one or two outputs) that matches some sorting rules did it intentionally or by random luck.