>>952031
>Signing seems to be just between two people.
bullshit
>I want the public to have the key.
That's why it's called a public key, duh
>I don't want a message within the encryption, just verification of the identity. Message needs to be public.
The message is hashed before computing the signature (which is appended to the message, not replacing it), so that the public can verify the message hasn't been tampered with. You could of course just sign a random number to prove it's you, but then you lose protection against fags stealing the sig and attaching it to a different message of their choice.
sage