Comment: Re:Scientific Method (Score 1) 289
Comment: Scientific Method (Score 1) 289
Would this indicate new physics if proven?
Maybe, but it would really shake up the scientific method...
Comment: Re:Who authorized go on launch? (Score 1) 174
Comment: Re:Bans of hands-free phones? (Score 1) 419
Comment: Re:Explanation of the attack -- enforcement issues (Score 2, Interesting) 312
It is an interesting attack, and IANAL, but I'd be curious about the legal ramifications. If I slip a carbon (ah... the way-back machine) in a stack of papers and ask someone to sign the top one without thus informing them, I think my stealth probably invalidates the additional document(s).
You could argue that there's a noticeable difference between pen and carbon -- making the copy hard to enforce -- but I'd argue the digital version is even easier: at least in the PS example, both "copies" of the document need to be present to preserve the hash.
In normal (pen/paper) signature situations, I get a copy of what I signed. The same ought to apply to digital sigs, resulting in a simple legal challenge to the validity of the document.