Yes, thank you! I was thinking of the inputs to the box as the unencrypted inputs, which the XOR gates in the box would encrypt, but now I see that it's the op

Yes, thank you! I was thinking of the inputs to the box as the unencrypted inputs, which the XOR gates in the box would encrypt, but now I see that it's the opposite. It wasn't clear to me from the post that the outputs and inputs from the encrypted-and-gate are both supposed to be encrypted, and it might not be clear to others either. Thanks for taking the time to explain!