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make explicit that key share holders can break unlinkability

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Conrado Gouvea 2022-07-22 14:44:06 -03:00
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zip-frost.rst
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@ -96,7 +96,8 @@ With those considerations in mind, the threat model considered in this ZIP is:
the unlinkability property). A rogue Coordinator will be able to break the unlinkability property). A rogue Coordinator will be able to break
unlinkability and privacy, but should not be able to create signed transactions unlinkability and privacy, but should not be able to create signed transactions
without the approval of `MIN_SIGNERS` participants, as specified in FROST. without the approval of `MIN_SIGNERS` participants, as specified in FROST.
- All key share holders are also trusted with the privacy of the transaction. - All key share holders are also trusted with the privacy and of the transaction,
thus a rogue key share holder will be able to break its privacy and unlinkability.
A future specification may support a scenario where individual key share A future specification may support a scenario where individual key share
holders are not trusted with it. holders are not trusted with it.