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SHA-256: structure and reduced-round models

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I am studying the SHA-256 message schedule and reduced-round compression models; research notes will appear here as they are ready.

Authors
Jordi Gartner
Research status
Work in progress
Published
Version
3

I am looking at the SHA-256 message schedule and models of its compression function with fewer rounds. This project page will collect the results as they are ready.

Each note will name its model, round count and assumptions. A result for a reduced-round model applies to that model; it does not automatically extend to full SHA-256.

The GitHub project overview records the scope of this work.

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Version history

VersionPublishedChange note
v4Updated publication information.
v3Clarified the project scope and linked its GitHub overview in English, German and Chinese.
v2Wording revised for clarity; comment guidance updated where relevant.
v1Initial editorial overview; no research files released.

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