Refactor Nullifier methods to use safer MerkleMapWitness operations #1715
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MartinMinkov
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MartinMinkov
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computeRootAndKeyV2computeRootAndKeyV2
mitschabaude
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Jul 3, 2024
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So I'm saying, I don't see why we have to add another version of the class in this case |
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computeRootAndKeyV2
Yeah, that was my mistake. Changed the PR to this approach instead! |
mitschabaude
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Jul 3, 2024
…thods in favor of V2 versions feat(nullifier): add isUnusedV2, assertUnusedV2, and setUsedV2 methods that use the safer MerkleMapWitness.computeRootAndKeyV2 docs(nullifier): add deprecation notices to isUnused, assertUnused, and setUsed methods, and update examples to use V2 versions The original methods used the deprecated MerkleMapWitness.computeRootAndKey which may be vulnerable to hash collisions in key indices. The new V2 methods utilize the safer MerkleMapWitness.computeRootAndKeyV2 to mitigate this issue and improve the security of the nullifier operations.
The nullifier methods `assertUnused` and `setUsed` have been updated to their V2 counterparts `assertUnusedV2` and `setUsedV2` respectively. This change is made to use the latest versions of these methods which likely include performance improvements, bug fixes, or additional functionality compared to the previous versions.
The new methods `isUnusedV2()`, `assertUnusedV2()`, and `setUsedV2()` have been introduced to provide improved functionality for nullifier operations. BREAKING CHANGE: deprecate Nullifier.isUnused(), Nullifier.assertUnused(), and Nullifier.setUsed() methods The existing `Nullifier.isUnused()`, `Nullifier.assertUnused()`, and `Nullifier.setUsed()` methods have been deprecated in favor of the new V2 methods. These deprecated methods will be removed in a future release. Please update your code to use the new V2 methods instead.
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