A signature doesn't have to be protected from malicious removal. If a bad actor removes it (or modifies it), then the video can no longer be validated and is co

A signature doesn't have to be protected from malicious removal. If a bad actor removes it (or modifies it), then the video can no longer be validated and is considered compromised/unknown (which may be the same thing depending on how important validity is). DeCSS was removal of encryption, not signature, which is a whole different set of concerns and goals.