CiFlow: Dataflow Analysis and Optimization of Key Switching for Homomorphic Encryption. (arXiv:2311.01598v1 [cs.CR])

Homomorphic encryption (HE) is a privacy-preserving computation technique
that enables computation on encrypted data. Today, the potential of HE remains
largely unrealized as it is impractically slow, preventing it from being used
in real applications. A major computational bottleneck in HE is the
key-switching operation, accounting for approximately 70% of the overall HE
execution time and involving a large amount of data for inputs, intermediates,
and keys. Prior research has focused on hardware accelerators to improve HE
performance, typically featuring …

accounting analysis applications computation computational data encrypted encrypted data encryption homomorphic encryption key major optimization privacy real slow the key today