G – Zero-Knowledge Proof (ZKP)

[phin10]

Description
ZKP offer strong potential as a privacy-enhancing technique. It should be revisited to determine the foundational requirements needed for its future integration, particularly focusing on defining specific requirements for implementing ZKP by using any type of WSCD/WSCA.

Planned publication discussion paper
19 February 2025

Link to discussion paper
link will follow

Links to discussion thread(s)
link will follow

Discussion close
Three weeks later.

[pinamiranda]

@phin10 , please add the following standards as an input to the ZKP meeting - suggestion from Alicia Filipiak (FR)

• ETSI TR 119 476 Electronic Signatures and Trust Infrastructures (ESI); Analysis of selective disclosure and zero-knowledge proofs applied to Electronic Attestation of Attributes
• ISO/IEC DIS 27565 Information security, cybersecurity and privacy protection - Guidelines on privacy preservation based on zero-knowledge proofs
• W3C Data integrity BBS cryptosuites v1.1, https://www.w3.org/TR/vc-di-bbs/
• IETF The BBS signature scheme, https://datatracker.ietf.org/doc/draft-irtf-cfrg-bbs-signatures/07/
• IETF Blind BBS Signature, https://datatracker.ietf.org/doc/draft-kalos-bbs-blind-signatures/03/
• IETF BBS per Verifier linkability, https://datatracker.ietf.org/doc/draft-vasilis-bbs-per-verifier-linkability/01/

[ottomorac]

Hello. @phin10

Suggest to also review the Iden3 open source stack:

• CIRCOM (world most used compiler for ZK circuits)
• JWZ (JWT with ZKProofs) (method of signing and verifying authenticity of JWT payload messages using Zero-Knowledge Proofs)
• SnarkJS (the first general-purpose ZK prover capable of running on edge devices)
• ZKQuery Language (first general-purpose query language for ZKP enabled credentials )
• Baby Jub Jub Cryptography used to generate mobile efficient zk proofs. The zk proofs that can be generated also allow predicate proofs (example: user age over 18, age between 18 and 25, age below 65). The BJJ cryptography was first described in 2018 and published in 2021 under a creative commons license.

Iden3 is owned by the 0KIMS Association and is managed as a public good.