X-Wing Hybrid KEM #4124
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X-Wing Hybrid KEM #4124
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Based on draft-connolly-cfrg-xwing-kem-02
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This pull request introduces the X-Wing Hybrid Key Encapsulation Mechanism (KEM), which combines X25519 and ML-KEM-768 into a single KEM. The implementation uses the abstract KEM interface internally, even if only one composition is used.
The current specification of X-Wing is draft-connolly-cfrg-xwing-kem-02. Because it's still a draft, I've marked the
x_wingmodule as experimental (i.e.,configure.py --enable-experimental-features ...is required).State of this Pull Request
This is a draft pull request as X-Wing relies on ML-KEM-768, which is not yet available in Botan. I will wait until the clean ML_KEM implementation is merged to avoid any rebase issues. Currently, the implementation uses Kyber-768 for roundtrip testing. The KATs provided in the draft have not yet been implemented.
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