Hello! I would like to ask, is the scheme switch implemented in this update based on Pegasus? Is there an implementation based on ‘Efficient Homomorphic Conversion Between (Ring) LWE Ciphertexts’ by Hao Chen? I want to implement and test the performance of ‘Efficient Homomorphic Conversion Between (Ring) LWE Ciphertexts’ by Hao Chen based on openFHE, do you have any suggestions?
Yes, the scheme switching implemented in OpenFHE is mainly based on the pipeline in PEGASUS https://eprint.iacr.org/2020/1606.pdf. For the algorithms in https://eprint.iacr.org/2020/015.pdf, one should implement the trace function for fields and the packing described in that paper.
Thank you Andreea, thanks for your response and help!