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Re: [#AboveMyPayGrade] Protecting quantum computing networks against hacking threats

On Sun, Feb 05, 2017 at 06:35:21PM -0800, Razer wrote:
> > More information: High-dimensional quantum cloning and applications to
> > quantum hacking, Science Advances  03 Feb 2017, DOI:
> > 10.1126/sciadv.1601915
> >
> > Provided by University of Ottawa
> https://phys.org/news/2017-02-quantum-networks-hacking-threats.html

|In addition, a cloning attack on a Bennett and Brassard (BB84)
|quantum key distribution protocol is experimentally demonstrated
|to reveal the robustness of high-dimensional states in quantum

I can't parse the technical stuff. Does the last paragraph mean
they broke "old quantum crypto"?