As a followup to a previous question I asked which was more related to Fully Hom

Question

As a followup to a previous question I asked which was more related to Fully Homomorphic Encryption (FHE), what other cryptographic methods are available for computing a private function on public and/or private input? And, what are the benefits/limitations when compared to FHE?

In specific I am interested in Yao's Garbled Circuits construction and a newer publication I recently came across due to Parno et al., which uses functional encryption (aka attribute based encryption). If there are any others, I'd be interested in them too.

Explanation / Answer

Functional encryption is bigger framework, not necessarily attribute based encryption.It tries to provide a framework for Identity Based Encryption, Attribute Based Encryption and Predicate Encryption.

Recently a paper came up showing the connections between Functional Encryption and Fully Homomorphic Encryption. Iam yet to go through it thoroughly though.

Other than that iam not aware of any alternatives to FHE for secure function evaluation

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