Oops, sorry I've mixed that up. McEliece public-key encryption is a gold-standard post-quantum encryption scheme, but it is not homomorphic. Homomorphic would

Oops, sorry I've mixed that up. McEliece public-key encryption is a gold-standard post-quantum encryption scheme, but it is not homomorphic. Homomorphic would allow computations on the encrypted data without decrypting it.