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Can BGV homomorphic encryption scheme support three multiplication level/depth with the help of key switching and modulus switching?

If Yes, how does one set up the parameter to achieve that?

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Actually It depends on which library you use. If you use Palisade, you can set numberoftowers (L level) to 3.

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  • $\begingroup$ Using HELib, can the multiplicative level be set to 3? $\endgroup$
    – Blessyn01
    Sep 17, 2019 at 2:03
  • $\begingroup$ You can set the bits parameter when you initialize the context and HElib should show you how many moduli you have in the chain which corresponds to the multiplication level. Here's an example github.com/homenc/HElib/blob/… $\endgroup$
    – lamba
    Feb 4, 2022 at 9:43

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