Ava Labs puts an internal team on hash-based backups for Avalanche's ECDSA signatures

A recovery mode only helps if it cannot fail for the same reason as the scheme it backs up. Hash-based schemes get their security from hash functions instead of elliptic curve math, so a break in one would not automatically doom the other ^[5]. Avalanche has authorized transactions mainly through ECDSA on the secp256k1 curve since its 2020 launch ^[7], about six years on the same curve ^[14]. Qureshi's proposal would keep an alternative cryptosystem ready to integrate, to protect users if ECDSA fails ^[3].

So far the commitment is staff time on research. The protocol is untouched. Sirer said no immediate changes are coming to Avalanche, and no timeline or implementation details were offered for any upgrade ^[12]. Crypto Briefing did not report the group's size.

Calling this post-quantum planning fits only half the record. Sirer noted that talk about Avalanche's signature security has traditionally centered on long-term quantum resistance ^[9]. The hash-based group, though, is described as a precaution against vulnerabilities AI might exploit ^[4]. The debate behind his comments followed AI-driven mathematical advances and research from Ethereum's Justin Drake on AI speeding up breakthroughs against ECDSA ^[8]. In this account the risk being hedged is AI, and the work on both fronts is a fallback that would sit beside ECDSA until the day it fails ^[3][4]. One chain's internal research is also thin evidence of what large chains in general are doing.

If ECDSA holds, the research stays internal and its cost is the group's time. If a credible break arrives, coordination becomes the limit. Swapping the cryptography under a live chain needs developers, validators, wallet providers and users to move together ^[11]. Because secp256k1 sits under a large share of the crypto ecosystem, according to Crypto Briefing, Avalanche would be one of many chains trying that at once ^[10].

The third outcome is Sirer's own forecast. "We will see AI exploiting system-level bugs long before ECDSA goes away," he said ^[2]. In that case the losses come through the blockchain software, libraries and wallets built on top of the signatures ^[13].

I think Sirer has the order right on what is known. He noted there have been no confirmed exploits ^[6]. The case against him is lead time. A signature migration needs that four-way coordination ^[11], and a fix still at the research stage on the day of a break would arrive late. The view is wrong if a credible AI-assisted attack on secp256k1 is published before a major AI-found exploit hits wallet or node software.