[Lesson 4, Lecture 5] Homomorphic Encryption for Input Privacy

[majauhar]

Hi @iamtrask! In the lecture, you told us that we use public-key cryptography for homomorphic encryption. But, since the processing of data only happens after encryption by the input source, can't we use symmetric key cryptography instead?

[ZSoumia]

Hi @majauhar ! It can work with Private key , in fact in HE any symmetric key HE can be transformed to a public key HE ( Rothblum theorem

[majauhar]

Thanks for the help @ZSoumia