ML-KEM: Validate expanded decapsulation key hash#207
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tarcieri merged 2 commits intoRustCrypto:masterfrom Jan 30, 2026
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@MGibson1 can you merge/rebase? |
FIPS 203 section 3.3 "Destruction of intermediate values" specifies that both parts of the seed (z, d) should be treated in the same manner at the decapsulation key itself, which is to zeroize.
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FIPS 203 section 7.2 requires verifying the provided encapsulation key hash against the encapsulation key included in the serialized format.
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Done. Sorry about that, I thought I'd isolated those two PRs but it looks like I mistakenly included both changes in this one. |
tarcieri
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After merging #207 we need to handle errors from invalid hashes
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After merging #207 we need to handle errors from invalid hashes
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FIPS 203 section 7.3 Decapsulation input check
where$H$ is sha3-256.
Tests are added of this hash verification and todo comments removed.