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Microsoft Crescent Credentials (Spartan-t256 Fork)

URL: https://github.com/microsoft/crescent-credentials/tree/main/forks/Spartan-t256

Summary

Microsoft's Crescent credential system fork of Spartan adapted to use the t256 elliptic curve (secp256r1-compatible). Enables ZK proofs over ECDSA-signed credentials such as JWTs and X.509 certificates. Directly relevant to e-ID holder binding use cases requiring ZK proofs over existing identity credentials.

Related resources

• Microsoft Spartan2 (code, 2022)
• ZKAttest: Ring and Group Signatures for Existing ECDSA Keys (paper, 2022)