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For integers, when should I use BFV / BGV / CKKS / TFHE?

ru flag

When performing homomorphically encrypted computations, when should I use BFV / BGV / CKKS?

It seems BFV / BGV is better suited for integers, and CKKS for floats. It also seems BFV-BGV have some portability. I want to calculate using integers.

How do I understand if I should use BFV or BGV?

I also don't understand why the imprecision from CKKS could not simply be fixed by rounding, since it is comparatively small.

EDIT:As suggested below, another option could be TFHE. EDIT II: I've implemented BFV, BGV, and CKKS from scratch in R, given how similar CKKS is to BFV, it is really not clear why one is suited for interget and the other for float

Bastiaan Quast avatar
ru flag
@kelalaka I would like to calculate integers, so I'm not sure about BFV or BGV. I also don't understand why the impression from CKKS could not simply be fixed by rounding, since it is comparatively small. Does that clarify?
Bastiaan Quast avatar
ru flag
@kelalaka, thank you, good point. Done
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