{"id":84452,"date":"2026-03-31T12:49:46","date_gmt":"2026-03-31T10:49:46","guid":{"rendered":"https:\/\/trader-magazine.com\/?p=84452"},"modified":"2026-03-31T12:49:48","modified_gmt":"2026-03-31T10:49:48","slug":"kvantove-pocitace-mohou-jiz-brzy-prolomit-bitcoin-behem-minut-varuje-google","status":"publish","type":"post","link":"https:\/\/trader-magazine.com\/cs\/kryptomeny\/kvantove-pocitace-mohou-jiz-brzy-prolomit-bitcoin-behem-minut-varuje-google\/","title":{"rendered":"Kvantov\u00e9 po\u010d\u00edta\u010de mohou ji\u017e brzy prolomit Bitcoin b\u011bhem minut, varuje Google"},"content":{"rendered":"\n

Kvantov\u00e9 po\u010d\u00edta\u010de byly je\u0161t\u011b doned\u00e1vna vn\u00edm\u00e1ny jako vzd\u00e1len\u00e1 hrozba, kter\u00e1 se kryptom\u011bn dotkne a\u017e za des\u00edtky let. Nov\u00fd v\u00fdzkum<\/a> spole\u010dnosti Google ale tento p\u0159edpoklad z\u00e1sadn\u011b naru\u0161uje. Podle aktu\u00e1ln\u00edch zji\u0161t\u011bn\u00ed by toti\u017e prolomen\u00ed kryptografie, na kter\u00e9 stoj\u00ed Bitcoin nebo Ethereum, mohlo vy\u017eadovat v\u00fdrazn\u011b m\u00e9n\u011b v\u00fdpo\u010detn\u00edch zdroj\u016f, ne\u017e se dosud p\u0159edpokl\u00e1dalo.<\/p>\n\n\n\n

Sta\u010d\u00ed m\u00e9n\u011b qubit\u016f, ne\u017e se \u010dekalo<\/strong><\/h2>\n\n\n\n

Google ve sv\u00e9 studii uv\u00e1d\u00ed, \u017ee k prolomen\u00ed \u0161ifrov\u00e1n\u00ed zalo\u017een\u00e9ho na eliptick\u00fdch k\u0159ivk\u00e1ch (tzv. ECDLP-256), kter\u00e9 chr\u00e1n\u00ed v\u011bt\u0161inu kryptom\u011bnov\u00fdch blockchain\u016f, by mohl sta\u010dit kvantov\u00fd po\u010d\u00edta\u010d s m\u00e9n\u011b ne\u017e 500 tis\u00edci fyzick\u00fdmi qubity. To je p\u0159ibli\u017en\u011b dvacetkr\u00e1t m\u00e9n\u011b, ne\u017e uv\u00e1d\u011bly d\u0159\u00edv\u011bj\u0161\u00ed odhady.<\/p>\n\n\n\n

Qubit je z\u00e1kladn\u00ed jednotkou kvantov\u00e9ho po\u010d\u00edta\u010de \u2013 \u010d\u00edm v\u00edce jich za\u0159\u00edzen\u00ed m\u00e1, t\u00edm slo\u017eit\u011bj\u0161\u00ed v\u00fdpo\u010dty dok\u00e1\u017ee prov\u00e1d\u011bt. Sn\u00ed\u017een\u00ed po\u017eadovan\u00e9ho po\u010dtu qubit\u016f tak v\u00fdrazn\u011b p\u0159ibli\u017euje sc\u00e9n\u00e1\u0159, kdy se kvantov\u00e9 \u00fatoky stanou re\u00e1lnou hrozbou.<\/p>\n\n\n\n

\u010ct\u011bte tak\u00e9: Jak mohou kvantov\u00e9 po\u010d\u00edta\u010de zm\u011bnit investov\u00e1n\u00ed? Technologie, kter\u00e1 m\u016f\u017ee p\u0159epsat pravidla trhu<\/a><\/h3>\n\n\n\n

Bitcoin pod tlakem: \u00fatok v \u0159\u00e1du minut<\/strong><\/h2>\n\n\n\n

V\u00fdzkum z\u00e1rove\u0148 nazna\u010duje, \u017ee v teoretick\u00e9m sc\u00e9n\u00e1\u0159i by kvantov\u00fd po\u010d\u00edta\u010d mohl odhalit soukrom\u00fd kl\u00ed\u010d bitcoinov\u00e9 pen\u011b\u017eenky b\u011bhem pouh\u00fdch dev\u00edti minut. To je z\u00e1sadn\u00ed \u010d\u00edslo, proto\u017ee Bitcoin pracuje s p\u0159ibli\u017en\u011b desetiminutov\u00fdm intervalem mezi bloky.<\/p>\n\n\n\n

Pr\u00e1v\u011b v tomto kr\u00e1tk\u00e9m \u010dasov\u00e9m okn\u011b by mohl prob\u011bhnout tzv. \u201eon-spend attack\u201c. Ten spo\u010d\u00edv\u00e1 v tom, \u017ee \u00fato\u010dn\u00edk vyu\u017eije okam\u017eik, kdy je ve\u0159ejn\u00fd kl\u00ed\u010d b\u011bhem transakce odhalen, a pomoc\u00ed kvantov\u00e9ho v\u00fdpo\u010dtu z n\u011bj odvod\u00ed kl\u00ed\u010d soukrom\u00fd \u2013 a n\u00e1sledn\u011b odciz\u00ed prost\u0159edky.<\/p>\n\n\n\n

Spoluautor studie a v\u00fdzkumn\u00edk spojen\u00fd s Ethereem Justin Drake v t\u00e9to souvislosti varuje<\/a>, \u017ee pravd\u011bpodobnost tzv. \u201eQ-Day\u201c \u2013 tedy dne, kdy kvantov\u00e9 po\u010d\u00edta\u010de za\u010dnou re\u00e1ln\u011b ohro\u017eovat kryptografii \u2013 u\u017e nen\u00ed zanedbateln\u00e1. Podle n\u011bj existuje minim\u00e1ln\u011b desetiprocentn\u00ed \u0161ance, \u017ee k tomu dojde do roku 2032.<\/p>\n\n\n\n

Ethereum je je\u0161t\u011b zraniteln\u011bj\u0161\u00ed<\/strong><\/h2>\n\n\n\n

Zat\u00edmco u Bitcoinu by \u00fatok musel prob\u011bhnout ve velmi kr\u00e1tk\u00e9m \u010dase, Ethereum \u010del\u00ed podle Googlu je\u0161t\u011b z\u00e1va\u017en\u011bj\u0161\u00edmu struktur\u00e1ln\u00edmu probl\u00e9mu.<\/p>\n\n\n\n

Jeho model \u00fa\u010dt\u016f toti\u017e umo\u017e\u0148uje tzv. \u201eat-rest attacks\u201c. Jakmile toti\u017e ethereum \u00fa\u010det provede svou prvn\u00ed transakci, jeho ve\u0159ejn\u00fd kl\u00ed\u010d z\u016fst\u00e1v\u00e1 trvale dostupn\u00fd na blockchainu. To znamen\u00e1, \u017ee \u00fato\u010dn\u00edk nen\u00ed \u010dasov\u011b omezen \u2013 m\u016f\u017ee si vz\u00edt libovoln\u011b dlouhou dobu na to, aby ze zve\u0159ejn\u011bn\u00e9ho kl\u00ed\u010de odvodil ten soukrom\u00fd.<\/p>\n\n\n\n

Podle odhad\u016f Googlu by bylo mo\u017en\u00e9 prolomit tis\u00edc nejbohat\u0161\u00edch exponovan\u00fdch \u00fa\u010dt\u016f na s\u00edti Ethereum \u2013 kter\u00e9 dohromady dr\u017e\u00ed zhruba 20,5 milionu ETH \u2013 za m\u00e9n\u011b ne\u017e dev\u011bt dn\u00ed.<\/p>\n\n\n\n

V\u00fdzkumn\u00edci p\u0159itom upozor\u0148uj\u00ed, \u017ee jde o syst\u00e9movou slabinu, kterou nelze vy\u0159e\u0161it chov\u00e1n\u00edm jednotliv\u00fdch u\u017eivatel\u016f. Jedin\u00fdm \u0159e\u0161en\u00edm je p\u0159echod na tzv. postkvantovou kryptografii (PQC), kter\u00e1 je v\u016f\u010di t\u011bmto \u00fatok\u016fm odoln\u00e1.<\/p>\n\n\n\n

\u010ct\u011bte tak\u00e9: Bitcoin kalkula\u010dka: jednoduch\u00fd n\u00e1stroj, kter\u00fd ukazuje skute\u010dnou hodnotu investice<\/a><\/h3>\n\n\n\n

\u010cas se kr\u00e1t\u00ed: Google stanovuje rok 2029<\/strong><\/h2>\n\n\n\n

Google v n\u00e1vaznosti na sv\u00e1 zji\u0161t\u011bn\u00ed stanovil<\/a> vlastn\u00ed deadline pro p\u0159echod na postkvantovou kryptografii na rok 2029. Podle firmy jsou toti\u017e \u201ekvantov\u00e9 hranice bl\u00ed\u017e, ne\u017e se zd\u00e1\u201c.<\/p>\n\n\n\n

Na situaci reaguj\u00ed i dal\u0161\u00ed hlasy z kryptokomunity. Investor Nic Carter ozna\u010dil sou\u010dasnou kryptografii zalo\u017eenou na eliptick\u00fdch k\u0159ivk\u00e1ch za technologii \u201ena pokraji zastaralosti\u201c. Z\u00e1rove\u0148 upozornil, \u017ee v\u00fdvoj\u00e1\u0159i Etherea u\u017e na \u0159e\u0161en\u00edch aktivn\u011b pracuj\u00ed<\/a>, zat\u00edmco p\u0159\u00edstup Bitcoinu ozna\u010dil za jeden z nejslab\u0161\u00edch v tomto ohledu.<\/p>\n\n\n\n

Ethereum Foundation u\u017e letos v \u00fanoru p\u0159edstavila<\/a> sv\u016fj pl\u00e1n p\u0159echodu na postkvantov\u00e9 zabezpe\u010den\u00ed. Spoluzakladatel s\u00edt\u011b Vitalik Buterin zd\u016fraznil, \u017ee zm\u011bny se budou t\u00fdkat cel\u00e9 infrastruktury \u2013 od podpis\u016f valid\u00e1tor\u016f p\u0159es ukl\u00e1d\u00e1n\u00ed dat a\u017e po samotn\u00e9 \u00fa\u010dty.<\/p>\n\n\n\n

Co to znamen\u00e1 pro b\u011b\u017en\u00e9 investory<\/strong><\/h2>\n\n\n\n

Pro b\u011b\u017en\u00e9ho u\u017eivatele kryptom\u011bn nep\u0159edstavuj\u00ed kvantov\u00e9 po\u010d\u00edta\u010de bezprost\u0159edn\u00ed riziko. Technologie zat\u00edm nen\u00ed na \u00farovni, kter\u00e1 by umo\u017e\u0148ovala re\u00e1ln\u00e9 \u00fatoky v praxi.<\/p>\n\n\n\n

Nov\u00fd v\u00fdzkum ale ukazuje, \u017ee \u010dasov\u00fd horizont se m\u016f\u017ee zkracovat rychleji, ne\u017e se \u010dekalo. Pokud se v\u00fdvoj kvantov\u00fdch technologi\u00ed udr\u017e\u00ed sou\u010dasn\u00fdm tempem, bude muset kryptom\u011bnov\u00fd sektor reagovat v horizontu jednotek let, nikoli dek\u00e1d.<\/p>\n\n\n\n

Z\u00e1sadn\u00ed ot\u00e1zkou tak z\u016fst\u00e1v\u00e1, zda budou blockchainov\u00e9 projekty schopn\u00e9 p\u0159ej\u00edt na nov\u00e9 standardy d\u0159\u00edv, ne\u017e kvantov\u00e9 po\u010d\u00edta\u010de dos\u00e1hnou pot\u0159ebn\u00e9ho v\u00fdkonu. Proto\u017ee ve chv\u00edli, kdy k tomu dojde, m\u016f\u017ee j\u00edt o jednu z nejv\u011bt\u0161\u00edch bezpe\u010dnostn\u00edch v\u00fdzev v historii digit\u00e1ln\u00edch financ\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

Kvantov\u00e9 po\u010d\u00edta\u010de byly je\u0161t\u011b doned\u00e1vna vn\u00edm\u00e1ny jako vzd\u00e1len\u00e1 hrozba, kter\u00e1 se kryptom\u011bn dotkne a\u017e za des\u00edtky let. Nov\u00fd v\u00fdzkum spole\u010dnosti Google ale tento p\u0159edpoklad z\u00e1sadn\u011b naru\u0161uje. Podle aktu\u00e1ln\u00edch zji\u0161t\u011bn\u00ed by toti\u017e prolomen\u00ed kryptografie, na kter\u00e9 stoj\u00ed Bitcoin nebo Ethereum, mohlo vy\u017eadovat v\u00fdrazn\u011b m\u00e9n\u011b v\u00fdpo\u010detn\u00edch zdroj\u016f, ne\u017e se dosud p\u0159edpokl\u00e1dalo. Sta\u010d\u00ed m\u00e9n\u011b qubit\u016f, ne\u017e se \u010dekalo Google ve […]<\/p>\n","protected":false},"author":44,"featured_media":84455,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"yasr_overall_rating":0,"yasr_post_is_review":"","yasr_auto_insert_disabled":"","yasr_review_type":"","footnotes":""},"categories":[242],"tags":[761,695,5445],"class_list":["post-84452","post","type-post","status-publish","format-standard","has-post-thumbnail","category-kryptomeny","tag-bitcoin-cs","tag-kryptomeny","tag-kvantove-pocitace"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t