Sorry, I'm very confused. Both of us seem very confident in our positions, so clearly one of use is c/confidentlyincorrect...
I will wait until a third party helps us identify who is wrong and I will be very happy to correct any mistake if that's the case.
We may be getting somewhere...
So they are not excrypting it, but do we agree that with signatures the author uses their private key + the clear message to generate "something"?
... so then anyone can use the author's public key to check that "something" against the clear mesage to confirm the author's identity?
If that's the case, then my error is that the operation to generate the signature is not an encryption. So, may I ask... what is it? A special type of hash?
Thanks again. I will edit my original comment with the corrections once I understand it correctly.