zkDaily - 2026-05-21

零知识证明 zkDaily

ZKP Frontier Tracker 🎯

Thu

05.21

2026

Miraidon: MinRank Identification

Paper

https://eprint.iacr.org/2026/997

Ryann Cartor Linkable Ring Signature

Cartor et al. proposed a MinRank-based post-quantum signature family in , introducing a new ZK proof system supporting digital signatures, ring signatures, and the first linkable ring signature based on MinRank.

Notes

Introduces a MinRank-based identification and signature framework.
Builds on a novel ZK proof system with improved soundness.
Supports digital signatures, ring signatures, and linkable ring signatures.
First linkable ring signature construction based on MinRank.
Provides competitive key and signature sizes versus lattice/code-based schemes.
Security relies on the hardness of the MinRank problem for PQ settings.

Collected by @icerdesign

零知识证明 zkDaily

Q&A Deep Dive 💬

Thu

05.21

2026

How is Miraidon different from traditional signature schemes?

Miraidon is based on the MinRank assumption instead of lattice or code assumptions, and derives signatures from a zero-knowledge identification protocol.

What is the role of the ring signature in this paper?

Ring signatures allow a user to sign anonymously on behalf of a group without revealing the real signer identity.

What is a linkable ring signature?

A linkable ring signature detects whether the same signer produced multiple signatures while preserving anonymity. This paper presents the first MinRank-based construction.

Prompted by @icerdesign