24.11.2017-15:31:04 :: Something smarter than us is going to emerge


node:	24.11.2017-15:31:04
template:	4
parent:	Bitcoin (The Church of Satoshi and Latter Day Coins)
owner:	killya
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created:	24.11.2017 - 15:31:04

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ABSOLUT
KYBERIA

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anarcho capitalists be like "oh noes"
https://futurism.com/bitcoins-security-quantum-computers/

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Shorov algoritmus je znamy od r.1994, cize najneskor odvtedy su kvantove pocitace "hrozba"... cca taka ako lietajuce auta. Akurat posledne roky sa uz kadetade implementuju kryptograficke algoritmy odolne voci (hypotetickym, buducim) kvantovym pocitacom (myslim ze napriklad aj do Toru a pod.).

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Akurat posledne roky sa uz kadetade implementuju kryptograficke algoritmy odolne voci (hypotetickym, buducim) kvantovym pocitacom

Napríklad?

Odolnosť post-quantum algoritmov voči kvantovým počítačom je spravidla tiež len hypotetická.

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SIDH sa integruje do openssl. XMSS, McEliece, NewHope su implementovane v Botan crypto lib

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napriklad NewHope alebo tak celkovo https://ianix.com/pqcrypto/pqcrypto-deployment.html
Ze je odolnost hypoteticka chapem. Podrobnosti rieseni nepoznam, len je to proste znama problematika, nic zasadne nove.

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oh noes?
- tyka sa to vsetkeho, aj bankoveho sektora, aj medicinskeho, samotnych vlad, armad, az po pouzivatelov gmailu...
- riesenia su, len ich nema zmysel implementovat, kym nevieme ci vobec o tych 10-20-30 rokov budu kvantove pocitace uz sirsie dostupne aj niekomu ako statom a megakorporaciam v jednotkach kusov...

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riesenia su[citation needed]

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tak napr. hned v tom linkovanom clanku sa pise: "For starters, Hurley suggests doubling or tripling the length of cryptographic keys. “Doubling the length of the encryption key is even more effective in a symmetric encryption scheme,” he said. “Quantum computers could use Grover’s Algorithm to break symmetric keys in quadratic time, but that’s not nearly fast enough to overcome a longer key."
ale imho to nie je nejaka obskurna informacia, je okolo toho uz cela veda. all in all plati, ze ked budu mat hackerkovia pouzitelne kvantove pocitace, budu ich mat pravdepodobne aj firmy, staty, institucie aby efektivne ochranili svoje data.
viac: https://en.wikipedia.org/wiki/Post-quantum_cryptography

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najvacsi "hakerkovia" SU staty (institucie, "firmy", ...)

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ok, good point. ale stale ked je tych pocitacov realne vyrobitelnych na svete v jednotkach kusov, tak si s tym nemozes dovolit robit co chces, bez toho aby boli na tebe vstky oci...