[Chapter-delegates] changed: Quantum communication

[Veni Markovski]

Thanks! Useful!

On Tue, Aug 1, 2017 at 07:40 Jorma Mellin <jome at ficix.fi> wrote:

> Hi all,
>
> The journalist haven’t done much research on this topic obviously, but the
> issue is quite complicated I admit.
> To clear up quantum a bit:
>
> Quantum computers are dealing with quantum bits or qubits. Nothing to do
> with cryptography directly.
> Quantum Key Distribution (QKD) is exchanging keys whose security is
> derived from quantum mechanical channels
> (photonics). This is what the article below is referring to.
> Post-Quantum or Quantum resistant cryptography are algorithms that that
> run efficiently on classical computers but
> are hard to break on quantum computers (with quantum algorithms).
>
> Now, existing (strong) cryptographic algorithms do pretty well against
> quantum computers if symmetric encryption is used and
> the key size is large enough. CNSS (Committee on National Security
> Systems) and NSA (National Security Agency) have
> already revised cryptographic recommendations back in 2015 (CNSSAM 02-15)
> to include only strong algorithms and
> appropriate key sizes.
>
> Quantum computers, when available, pose a couple of problems that need
> solving, and QKD is not one of them.
> 1. Post-quantum algorithm that can provide 30+ years security against
> cryptanalysis
> 2. Post-quantum algorithm for public key cryptography and key exchange
>
> There are significant work ongoing for post-quantum algorithms, mainly by
> COMSEC authorities (U.S. and U.K) but also
> by Google and Microsoft. NIST (in U.S) is currently running a
> standardisation process with deadline Nov, 30 2017 (and
> following 3-5 years analysis phase). There exists some solution proposals
> already.
>
> Seems like the western scientist are not so focused on QKD and think that
> post-quantum algorithms are way better solution.
> This seems logical because they need to secure the data 30+ years, not
> just prevent eavesdropping (of key exchange).
>
> It is undeniable that China invests huge amount of resources to quantum
> technology. Today we see the QKD part, tomorrow
> maybe something else.
>
> Jorma Mellin
> ------------------------------------------
> Jorma Mellin <jome at ficix.fi>
> Ambassador, FICIX
>
>
>
>
>
> > On 26 Jul 2017, at 12:23, Veni Markovski <veni at veni.com> wrote:
> >
> > Vint and colleagues,
> > What do you know / think about this?
> >
> > http://www.bbc.com/news/world-asia-40565722
> >
> > China set to launch an 'unhackable' internet communication
> >
> > ...
> > Leaving the West behind
> > If quantum communication can help to secure online communications, why
> is China so far ahead?
> > "For a long time people simply didn't think it was needed," says Prof
> Myungshik Kim of Imperial College, London, adding that it was not clear
> whether there was a commercial market for this technology.
> > "The mathematical difficulty of the current coding system was so high
> that it was not thought necessary to implement the new technology," he says.
> > The research itself is not new and China does not have an edge over the
> competition. Where it does have an advantage is when it comes to
> applications.
> > "Europe has simply missed the boat," says Prof Anton Zeilinger, a
> quantum physicist at Vienna University in Austria and a pioneer in the
> field.
> > He says he tried to convince the EU as early as 2004 to fund more
> quantum-based projects but it had little effect.
> > "Europe has been dragging its feet and this has hindered us from being
> able to compete," he says.
> >
> > There are quantum key-based networks operating in the US and Europe but
> most are being carried out as research projects, rather than with
> commercial partners...
> >
> > --
> > Best regards,
> > Veni
> > http://veni.com
> >
> > ***
> > The opinions expressed above
> > are those of the author, not of
> > any organizations, associated
> > with or related to him in
> > any given way.
> > ***
> >
> >
> > == Sent from my phone, so any spelling mistakes are caused by the
> touchscreen keyboard. Also, that's the reason for using short words and
> phrases.
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> --
Best regards,
Veni
http://veni.com

***
The opinions expressed above
are those of the author, not of
any organizations, associated
with or related to him in
any given way.
***


== Sent from my phone, so any spelling mistakes are caused by the
touchscreen keyboard. Also, that's the reason for using short words and
phrases.
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