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BFV Scheme does not support division #485

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skriesch opened this issue Jul 3, 2024 · 1 comment
Open

BFV Scheme does not support division #485

skriesch opened this issue Jul 3, 2024 · 1 comment
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Type: Bug 🐛 Some functionality not working in the codebase as intended

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@skriesch
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skriesch commented Jul 3, 2024

Description

We wanted to use the BFV Scheme based on Integer vectors and calculate with division (besides of addition, multiplication and subtraction). The function div is missing for the division, which should be part of the HE.
@skriesch skriesch added the Type: Bug 🐛 Some functionality not working in the codebase as intended label Jul 3, 2024
@reaneling
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Unfortunately, division is basically absent in Homomorphic Encryption. Fully Homomorphic Encryption "out of the box" supports only addition and multiplication. Even comparison is a computationally complex operation and is implemented only for CKKS based on polynomial approximations. For division, it is far, VERY far away.

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@skriesch @reaneling