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heidiverse/zkattest-rs (formerly UbiqueInnovation/zkattest-rs)

Last modified: 2026-10-23

URL: https://github.com/heidiverse/zkattest-rs

Summary

Proof-of-concept Rust code by Ubique Innovation for binding a BBS credential to a P-256 key held in a phone's secure element: a ZKAttest-style proof (ported from cloudflare/zkp-ecdsa, using the Tom-256 curve) shows an ECDSA signature verifies under a committed public key, and a cross-group equality proof (Chase et al.) links that key to attributes in a BBS signature. The README warns that the original ZKAttest optimisation is insecure (eprint 2023/1595) and points to docknetwork's equality_across_groups for a better implementation. Archived; now under the heidiverse organisation.