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CEP XXXX: Fix directory-hash collision via length-prefixed fields (v2) #174

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CEP XXXX: Fix directory-hash collision via length-prefixed fields (v2) #174

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cbcab01
CEP XXXX: fix directory-hash collision via length-prefixed fields
pb01ka Jun 12, 2026
e1f1755
lint: Remove multiple blank lines from cep-XXXX.md
pb01ka Jun 12, 2026
aa34f94
Apply suggestions from code review
pb01ka Jun 15, 2026
1c2425e
Address review feedback on CEP XXXX and CEP 19
pb01ka Jun 15, 2026
e34abd9
CEP XXXX: tighten path normalization, sorting, and text/binary handling
pb01ka Jul 3, 2026
3cfd79b
Update "Summary of changes from CEP 19" section
pb01ka Jul 3, 2026
a1e6a8e
Length-prefix file content to close a hash-collision gap; tighten spe…
pb01ka Jul 9, 2026
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2 changes: 2 additions & 0 deletions cep-0019.md
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<tr><td> Implementation </td><td> https://github.com/conda/conda-build/pull/5277 </td></tr>
</table>

> This CEP has been superseded by CEP XXXX

## Abstract

Given a directory, propose an algorithm to compute the aggregated hash of its contents in a cross-platform way. This is useful to check the integrity of remote sources regardless the compression method used.
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