BIP459: Add FullAgg (DahLIAS) module - #1754
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The last commit here now is implementing the code sharing between the musig and the fullagg model. That is one of the first questions I have when reviewers will take a closer look here: Do we want to do it this way? And do we event want to do this at all? I think it's pretty good but also the amount of LOC saving has been a bit underwhelming at the end. A second thing that I changed and that I would be interested in high-level feedback on: I realized that the fullagg module really doesn't need any of the Schnorr module code, it just depends on extrakeys. I fixed this in the config where I still had the schnorr module as dependency of the fullagg module. However, in practical terms they will likely always be active together and it's also a bit awkward that I still have the module named |
fjahr
changed the title
The naming of these functions suggested they should be moved to group.h but this didn't seem practical since these functions depended on eckey.h internally which is higher level than group.h.
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The latest push is a rebase but also does a bunch of renaming and rewording in response to the naming discussion in the BIP, e.g. dropping the "FullAgg of Schnorr signatures" framing. |
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Split out the first commit which is a pure refactor: #1915 |
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This PR adds a FullAgg module implementing full aggregation of BIP 340 signatures using the interactive aggregate signature scheme (DahLIAS).
The implementation follows the BIP459.