HashSmash Competition Tests AI Attacks on Core Cryptographic Hash Functions
Eigen Labs and Shielded Labs launch HashSmash, an open AI competition targeting SHA-256, SHA-3, BLAKE3 and Poseidon hash functions.
Two prominent blockchain and cryptography organizations, Eigen Labs and Shielded Labs — the development arm behind the Zcash privacy protocol — have jointly launched HashSmash, an open multiplayer competition designed to probe whether artificial intelligence can meaningfully weaken the hash functions that form the backbone of internet security.
The competition, hosted on the Yukon platform, invites participants worldwide to deploy AI agents against four widely used cryptographic hash functions: SHA-256, SHA-3, BLAKE3, and Poseidon. These algorithms underpin everything from Bitcoin's proof-of-work mechanism to secure web communications, making any credible attack against them a matter of broad concern for the technology industry.
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Organizers say every result generated during the competition will be published openly and subjected to review by professional cryptographers, positioning HashSmash as a transparent stress test rather than a closed research exercise. The public nature of the effort is intended to surface potential vulnerabilities — or confirm existing robustness — before quantum computing or advanced AI mature to the point of posing real-world threats.
The initiative reflects a growing urgency within the cryptography community to audit foundational security primitives against next-generation computational tools. By crowdsourcing the attack surface through an open format, the organizers aim to accelerate peer scrutiny and give the global security research community early visibility into any emerging weaknesses that AI-assisted analysis might reveal.
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