First quantum gates in silicon
markr at signal100.com
Fri Oct 23 12:12:59 CEST 2015
On 23/10/2015 08:54, Johan Wevers wrote:
> I just saw this posted in sci.crypt:
> Short quote from the article linked to above:
> In August, National Security Agency officials advised US agencies
> and businesses to prepare for a not-too-distant time when the
> cryptography protecting virtually all sensitive government and
> business communications is rendered obsolete by quantum computing.
> The advisory recommended backing away from plans to deploy elliptic
> curve cryptography, a form of public key cryptography that the NSA
> spent the previous 20 years promoting as more secure than the older
> RSA cryptosystem.
> Almost immediately, the dramatic about-face generated questions and
> anxiety. Why would the NSA abruptly abandon a series of ECC
> specifications it had championed for so long? Why were officials
> issuing the advice now when a working quantum computer was 10 to 50
> years away, and why would they back away from ECC before
> recommending a suite of quantum-resistant alternatives? The fact
> that the NSA was continuing to endorse use of RSA, which is also
> vulnerable to quantum computing, led some observers to speculate
> there was a secret motivation that had nothing to do with quantum
> On Tuesday, researchers Neal Koblitz and Alfred J. Menezes
> published a paper titled A Riddle Wrapped in an Enigma that
> compiles some of the competing theories behind the August advisory.
> The researchers stressed that that their paper isn't academic and
> at times relies on unsourced facts and opinions. And sure enough,
> some of the theories sound almost conspiratorial. Still, the paper
> does a good job of evaluating the strengths and weaknesses of the
> NSA's highly unexpected abandonment of ECC in a post quantum crypto
> (PQC) world.
Sounds like an attempt as mass reverse psychology to me...
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