Switching between CKKS and FHEW/TFHE

Poojitha · November 9, 2023, 12:19am

Hi,

I am working on a project where i switching between CKKS and FHEW/TFHE is needed. I know that OpenFHE supports scheme switching also see that CKKS to FHEW/TFHE switching capability is released in v1.1. I wasn’t able to find any documentation related to that.
It would be helpful if someone can share the details on how the switching is done in OpenFHE, functions or libraries that i can use.

Thank you in advance

narger · November 9, 2023, 7:33am

github.com

openfheorg/openfhe-development/blob/main/src/pke/examples/scheme-switching.cpp

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Caesar · November 9, 2023, 2:23pm

The documentation can be found in this readme.

Additionally, you can read more about scheme switching in the references below:

PEGASUS: PEGASUS: Bridging Polynomial and Non-polynomial Evaluations in Homomorphic Encryption
CHIMERA: CHIMERA: Combining Ring-LWE-based Fully Homomorphic Encryption Schemes

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Switching between CKKS and FHEW/TFHE

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