Sign with a ring signature

A ring signature proves “some member of this group signed” without revealing which — useful for whistleblowing, anonymous credentials, and blockchain privacy. Confium’s confium-ring ships the threshold ring-signature construction (a T-of-N subgroup can jointly produce a ring signature without any single member being identifiable).

The CLI surface for rings is part of the privacy umbrella’s in progress expansion; consume confium-ring from Rust today.