Is anyone aware of any implementation of EC ring signatures *not* using
pairing-based crypto? (If not, does anyone have any good ideas on the strategy
to pursue in, e.g., Ed25519?)
(I know that the original RST ("How to leak a secret") ring signature scheme
has been shown insecure if public keys in the ring are been adversarially
chosen. Though the citation is eluding me after several searches, I believe
there is a scheme using ZAPs to fix this.)
- David
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