Comments (5)
+1, this will make interactions between the primitives easier to spot, since they'll all be defined near each other. It will also force us to be explicit about the requirements of things like hSig.
from zips.
Data point: I probably wouldn't have found the InternalH collision attack if the instantiations were separated. If I had been asked (and given time) to specifically check if that commitment scheme was binding I might have noticed it, but seeing a bunch of important protocol values (rather than an opaque message to be committed to) going into an 128-bit hash was an important motivator to get me thinking about the potential problems.
That said, since we have zcash/zcash#792 I'm still happy about the separation.
from zips.
Yes, I'm concerned that the separation in the Zerocash paper might have been a contributing factor to it having been missed by the authors. I want to see how this change looks in practice before committing to making it for the final spec.
from zips.
@defuse and I made a start on this; the work-in-progress is on the https://github.com/zcash/zips/tree/zips27.reorganisation.0 branch.
from zips.
Fixed in 2016.0-beta-1.
from zips.
Related Issues (20)
- Protocol spec version 2024.5.1
- ZIP ?: Deployment of the NU7 Network Upgrade
- [protocol spec] Section 5.4.1.9 (Sinsemilla Hash Function) declares use of LEOS2IP when it should declare use of LEBS2IP HOT 1
- Index is not updated by CI HOT 1
- [ZSA] Describe state that full nodes must store for each asset, and explain the rationale for the 512-bytes asset_id limit
- [ZSA] Ensure that ZIP 209-style issuance tracking is applied to ZSA assets
- [ZSA] Add ZIP for recommended wallet support of ZSAs HOT 1
- [ZSA] Clarify the interaction between enableSpendsOrchard, enableOutputsOrchard, and enableZSAs HOT 1
- Variable block sizes for blocks with large, short-lived memos
- Consider a Zcash-specific namespace for compatibility with CAIP standards HOT 1
- [ZIP idea] Blocks should balance exactly HOT 1
- Update ZIP 32 to document the transparent key hierarchy, including the use of index 2 at the scope/change level
- De-duplicate footnotes in markdown rendering
- [ZIP 0] Document changes in the process for draft ZIPs
- [ZIP 0] Finish re-reviewing ZIP 0
- [ZIPs 315 and 320] Document more about what wallets can assume and must ensure about ZIP 320 tx pairs
- Bring ZIP 307 up-to-date
- [protocol spec] Update consensus rules for NU6
- References are duplicated in the rendering of Markdown ZIPs
- [consensus] Document the block serialization format
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