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Integrate standalone PhantomNTT plugin for CKKS operator. - #7

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vicrace wants to merge 6 commits into
feat/primitive-backendfrom
feat/phantom-ntt-plugin
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Integrate standalone PhantomNTT plugin for CKKS operator.#7
vicrace wants to merge 6 commits into
feat/primitive-backendfrom
feat/phantom-ntt-plugin

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@vicrace

@vicrace vicrace commented Jul 9, 2026

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PhantomNTT standalone replacement : Inplace, modulus ordered & poly ordered
Keyswitch optimization: mod-major base conversion, modNTT, key multiplication.

@vicrace
vicrace requested review from JJJsy and Yanbin-Li-Oct July 9, 2026 07:19
vicrace added 4 commits July 9, 2026 15:35
…TT util

Add keyswitch optimization part 1 using mod-major base conversion, excluded-limb NTT, and matching key multiplication.

Vendor the minimal PhantomNTT utility code needed by the primitive backend instead of depending on PhantomFHE as a third-party NTT backend.
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