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Bitcoin Dev Archive 2020

Sorting outputs of a transaction in alphabetic order to protect privacy

2 messages, 29 to 30 Apr 2020. Started by SatoshiSingh.

SatoshiSingh, Pavol Rusnak

Permalink Original thread on gnusha.org

SatoshiSingh permalink original

Hi list. I've been a lurker for quite sometime and this is my first post.

The problem I'm addressing is that generally wallet devs construct the tx with the 2nd output being of the sender as change. This helps chain analysers to identity addresses and invade the users privacy.

I'm suggesting to sort the outputs in alphabetic order (or by pure random order) before broadcasting. This way the chain analyser cannot be sure which output is the change output and will improve privacy a little.

Thanks

Pavol Rusnak in reply to SatoshiSingh permalink original