I assume it’s possible to have homomorphic encryption where the key is verifiable. Like if you randomly guessed it, you would be able to decrypt, and if you guessed wrong, you would know you failed to decrypt. The “key checking process” could even be memory-light. In which case it looks like in a “encrypt → compute → decrypt” process, the “decrypt” can’t be doing consciousness, because it’s a massively parallelizable, memory-light guess-and-check.
I assume it’s possible to have homomorphic encryption where the key is verifiable. Like if you randomly guessed it, you would be able to decrypt, and if you guessed wrong, you would know you failed to decrypt. The “key checking process” could even be memory-light. In which case it looks like in a “encrypt → compute → decrypt” process, the “decrypt” can’t be doing consciousness, because it’s a massively parallelizable, memory-light guess-and-check.