HAWK

Assess

Techniques

A post-quantum digital signature scheme under evaluation by NIST.

Why it's here

Placed in Assess: 3 article(s) of evidence from 3 source(s), led by research-stage coverage, with 3 in the last 30 days. Confidence 48%.

8Ars Technica AI·7/29/2026security
HAWK post-quantum signature scheme withdrawn after flaw found
HAWK, a post-quantum digital signature scheme under review for possible US standardization, has been withdrawn after a flaw was identified. The issue was found with help from Anthropic's security model during the third NIST evaluation round, which is designed to expose exactly these kinds of weaknesses.
5Simon Willison·7/29/2026research
Matthew Green on AI-Powered Cryptanalysis
Matthew Green argues that the current shift from RSA and elliptic-curve cryptography to post-quantum algorithms is an ideal moment for new AI-driven cryptanalysis capabilities. He suggests such work could either strengthen confidence in cryptographic assumptions or, if AI advances far enough, undermine some hard problems altogether.
7Simon Willison·7/28/2026research
Claude finds new weaknesses in HAWK and reduced-round AES
Anthropic says Claude Mythos Preview autonomously discovered improved attacks against two cryptographic targets: the post-quantum digital signature scheme HAWK and a reduced-round version of AES. The findings do not affect deployed production systems, but they show AI models can help uncover mathematical flaws in cryptographic algorithms, not just implementation bugs.

Your vote is a weighted signal that nudges the radar — never a direct override.

HoldAssessConfidence54%

Business▼ Cooling
Business development should avoid using HAWK as a selling point or proof of post-quantum readiness. If customers ask, the right message is that the technology is under reassessment and should not yet be treated as a stable option.
Developers▼ Cooling
Libraries or integrations experimenting with HAWK for post-quantum signatures should be treated as not ready for default use. Developers should pause product-path adoption and wait for a fix and safer guidance rather than optimizing around it too early.
Product▼ Cooling
PMs should not plan around HAWK as a near-term dependency in the security roadmap. Product milestones tied to post-quantum readiness should be explicitly marked as pending further evaluation, because the current news suggests HAWK is not mature enough to commit to.
Testers / QA▲ Rising
Testing for HAWK needs a higher level of scrutiny, especially edge cases, cryptographic assumptions, and behavior under small parameter changes. With a scheme that has been withdrawn over a flaw and continues to show weaknesses, QA and security testing should focus on re-validation rather than only standard regression suites.

as of 7/30/2026

Educated guesses from the trend — you decide.