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This repository accompanies our paper SoK: FHE-Friendly Symmetric Ciphers and Transciphering and provides additional notes and remarks on the investigated tools.

Transcipher compatibility

Overview of Transciphering Compatibility

Transciphering Method	Message Format	FHE-friendly Z2 Ciphers	AES	Fp Ciphers
CGGI-based	Binary	●	◐	○
RtF	Numeric	○	○	●
BtR	Binary	○	●	○

Legend

• ○, ◐, and ● denote the compatibility level of the ciphers for each transciphering method, ranging from least compatible to compatible (○< ◐ < ● ).

Performance tutorials

Transcipher benchmarks

Application benchmarks

Client side efficiency

Tools

Libraries

Library	Code	Docs	License
concrete	GitHub	https://concrete.zama.ai/	AGPL-3.0
lattigo	GitHub	--	Apache-2.0
TFHE	GitHub	https://tfhe.github.io/tfhe/	Apache-2.0