---
id: 1776
title: "The Frozen Heart vulnerability in PlonK"
source_domain: blog.trailofbits.com
source_url: "https://blog.trailofbits.com/2022/04/18/the-frozen-heart-vulnerability-in-plonk/"
published_at: "2022-04-18T11:00:01Z"
tags: ["cryptography", "vulnerability", "zero-knowledge-proofs", "fiat-shamir", "frozen-heart", "plonk"]
phying_url: "https://phying.com/item/1776"
lang: en
---

# The Frozen Heart vulnerability in PlonK

## Summary

Part four of the Frozen Heart series shows how insecure Fiat-Shamir implementations break soundness in PlonK, a modern ZK-SNARK scheme, letting attackers forge proofs for arbitrary statements.

## Intelligence Metadata

- **Sources:** blog.trailofbits.com
- **Published:** 2022-04-18T11:00:01Z
- **Original:** https://blog.trailofbits.com/2022/04/18/the-frozen-heart-vulnerability-in-plonk/
- **Phying News:** https://phying.com/item/1776