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Add a note about post-quantum privacy to ZIP 213 privacy considerations

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Jack Grigg 2020-01-27 20:32:53 +00:00
parent 84517efcd1
commit 4781183ab9
1 changed files with 6 additions and 3 deletions
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zip-0213.rst
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@ -136,9 +136,12 @@ Security and Privacy Considerations
===================================
Sapling outputs in coinbase transactions are by design publicly viewable, in contrast to
Sapling outputs in normal transactions. This does not introduce any privacy regressions,
because coinbase output values and recipient addresses have always been public
information.
Sapling outputs in normal transactions. This does not introduce any privacy regressions
relative to existing coinbase transactions, because coinbase output values and recipient
addresses have always been public information. However, users with threat models that rely
on keeping their Sapling address private (for example, to maintain post-quantum privacy),
and who are also miners or mining pools, should use a coinbase-specific address when
creating blocks.
Revealing the coinbase output notes does not enable anyone else to detect when the note is
spent, which removes the need for a separate shielding step like is enforced for