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Anthropic publishes a practical key-recovery attack on HAWK-256

Anthropic published a practical key-recovery attack on HAWK-256, a cryptographic hash function. The attack demonstrates a vulnerability in the HAWK-256 algorithm, potentially impacting systems relying on its security.

read1 min views26 publishedJul 28, 2026
Anthropic publishes a practical key-recovery attack on HAWK-256
Image: Michielbdejong (auto-discovered)

Research artifact. Not maintained and not accepting contributions. Cryptanalysis code accompanying the associated papers. Three independent components: AES/ HAWK/ LEA/ Licensed under Apache 2.0 (see LICENSE).

source & further reading
github.com — original article LectureInk: Open-source study notes from video tutorials Show HN: Enframe – Drop-in sidecar that wraps any OpenAPI spec to an MCP server lever: Feedback Loops for Coding Agents
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