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The batch verified one offers ~23% faster verification. While this massively refactors for modularity, I'm still not happy with the DLEq proofs at the top level, nor am I happy with the AOS signatures. I'll work on cleaning them up more later.
Discrete Log Equality
Implementation of discrete log equality both within a group and across groups, the latter being extremely experimental, for curves implementing the ff/group APIs. This library has not undergone auditing.
The cross-group DLEq is the one described in https://web.getmonero.org/resources/research-lab/pubs/MRL-0010.pdf, augmented with a pair of Schnorr Proof of Knowledges in order to correct for a mistake present in the paper.