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…lity for its internal field
…e replaced with a different implementation)
nazar-pc
requested review from
i1i1,
liuchengxu,
rg3l3dr and
vedhavyas
as code owners
i1i1
approved these changes
Mar 23, 2023
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This builds on #1281 and #1214 and is a step towards #1282.
We had
Kzgthat worked with bytes (converting to scalars internally) andsubspace-erasure-codingworking with scalars (converting to a completely different type internally due to scalar corresponding to a different underlying crypto library).Since in archiving we'll be dealing with both erasure coding and commitments, it makes sense to use the same scalar for both purposes.
This PR renames existing scalar to
ScalarLegacyand introduces newScalar, which shares some similarities, but has stricter and richer API. With this new scalar type bothKzgandsubspace-erasure-codingare refactored to use it with some efficiency gains in the process.Reviewing commits individually should make the most sense.
There is a bit of isolated and carefully written
unsafethat allows us to avoid large re-allocations in performance-sensitive code paths.Code contributor checklist: