[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.tasmina.cz\/je-vase-heslo-bezpecne\/#Article","mainEntityOfPage":"https:\/\/www.tasmina.cz\/je-vase-heslo-bezpecne\/","headline":"Je va\u0161e heslo bezpe\u010dn\u00e9?","name":"Je va\u0161e heslo bezpe\u010dn\u00e9?","description":"Obecn\u00e1 doporu\u010den\u00ed poplatn\u00e1 \u010dasu a v\u00fdkonu V dob\u00e1ch, kdy internet za\u010d\u00ednal, byl u hesel jedin\u00fd po\u017eadavek, muselo obsahovat maxim\u00e1ln\u011b 8 znak\u016f. Nutno ov\u0161em dodat, \u017ee tehdy je\u0161t\u011b nebyl internet tak … ","datePublished":"2025-03-04","dateModified":"2023-04-30","author":{"@type":"Person","@id":"https:\/\/www.tasmina.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.tasmina.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/f5ad5dcd5c02ecc0fdaf1fe4b2e9a39ad5c5cc2b614885090f6f77b1ccabb3a9?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/f5ad5dcd5c02ecc0fdaf1fe4b2e9a39ad5c5cc2b614885090f6f77b1ccabb3a9?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"tasmina.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.tasmina.cz\/wp-content\/uploads\/img_a310999_w2111_t1521967180.jpg","url":"https:\/\/www.tasmina.cz\/wp-content\/uploads\/img_a310999_w2111_t1521967180.jpg","height":0,"width":0},"url":"https:\/\/www.tasmina.cz\/je-vase-heslo-bezpecne\/","wordCount":525,"articleBody":"Obecn\u00e1 doporu\u010den\u00ed poplatn\u00e1 \u010dasu a v\u00fdkonuV dob\u00e1ch, kdy internet za\u010d\u00ednal, byl u hesel jedin\u00fd po\u017eadavek, muselo obsahovat maxim\u00e1ln\u011b 8 znak\u016f. Nutno ov\u0161em dodat, \u017ee tehdy je\u0161t\u011b nebyl internet tak v\u0161estrann\u00fdm n\u00e1strojem jako dnes a stejn\u011b tak nebylo obvykl\u00e9 ho b\u011b\u017en\u011b vyu\u017e\u00edvat a zneu\u017e\u00edvat.S rostouc\u00edm v\u00fdkonem procesor\u016f a tak\u00e9 pronik\u00e1n\u00edm online sv\u011bta do r\u016fzn\u00fdch oblast\u00ed se v\u0161ak pom\u011brn\u011b z\u00e1hy uk\u00e1zalo, \u017ee prolomen\u00ed kr\u00e1tk\u00fdch hesel je a\u017e sm\u011b\u0161n\u011b snadn\u00e9. V roce 2017 bylo vyd\u00e1no doporu\u010den\u00ed, \u017ee siln\u00e9 heslo by vzhledem k v\u00fdkonnosti po\u010d\u00edta\u010d\u016f m\u011blo obsahovat alespo\u0148 12 znak\u016f. To je minimum, nad kter\u00fdm by se m\u011bl procesor v po\u010d\u00edta\u010di p\u0159\u00edpadn\u00e9ho hackera minim\u00e1ln\u011b zapotit n\u00e1mahou.Pravd\u011bpodobnostCrackovac\u00ed programy pracuj\u00ed na b\u00e1zi v\u00fdpo\u010dtu v\u0161ech mo\u017en\u00fdch kombinac\u00ed v\u0161ech znak\u016f na va\u0161\u00ed kl\u00e1vesnici. Podle v\u00fdkonu m\u016f\u017ee b\u00fdt takov\u00fdch v\u00fdpo\u010dt\u016f a\u017e 2 miliony za sekundu, tak\u017ee proti va\u0161emu heslu stoj\u00ed v tomto p\u0159\u00edpad\u011b skute\u010dn\u00e1 \u201ebedna\u201c.Krom\u011b toho jsou jako zdroje hojn\u011b vyu\u017e\u00edvan\u00e9 (a voln\u011b dostupn\u00e9) i datab\u00e1ze ji\u017e zneu\u017eit\u00fdch hesel.Znamen\u00e1 to, \u017ee pokud se n\u011bkomu poda\u0159\u00ed z\u00edskat t\u0159eba datab\u00e1zi internetov\u00e9ho obchodu, v n\u00ed\u017e figuruje va\u0161e jm\u00e9no a email, ze v\u0161eho nejd\u0159\u00edv si zjist\u00ed, na jak\u00fdch zaj\u00edmav\u00fdch \u00fa\u010dtech a slu\u017eb\u00e1ch je mo\u017en\u00e9 v\u00e1s podle t\u011bchto dvou \u00fadaj\u016f dohledat. Pak u\u017e sta\u010d\u00ed jen vyzkou\u0161et, zda n\u00e1hodou nem\u00e1te na t\u011bch nejl\u00e9pe \u201evyu\u017eiteln\u00fdch\u201c stejn\u00e9 heslo a pokud tomu tak je, mohou se d\u00edt v\u011bci. Uv\u00e1d\u00ed se, \u017ee zlozvyk pou\u017e\u00edvat na v\u0161ech slu\u017eb\u00e1ch jedin\u00e9 heslo je tak roz\u0161\u00ed\u0159en\u00fd, \u017ee \u00fasp\u011b\u0161nost tohoto zp\u016fsobu z\u00edsk\u00e1v\u00e1n\u00ed hesel je a\u017e 60%.Jak na hesloPo\u017eadavky samotn\u00fdch protokol\u016f k vytvo\u0159en\u00ed nov\u00e9ho hesla n\u00e1m um\u011bj\u00ed po\u0159\u00e1dn\u011b zamotat hlavu. Takov\u00e9 heslo m\u00e1 obsahovat velk\u00e1 a mal\u00e1 p\u00edsmena, ur\u010dit\u00fd minim\u00e1ln\u00ed po\u010det znak\u016f, \u010d\u00edslo nebo znak\u2026 A je\u0161t\u011b se po n\u00e1s chce, abychom si takov\u00fd slepenec zapamatovali. Z toho, co jsme si uvedli v\u00fd\u0161e, je ale \u00favaha o tom, \u017ee pokud bude skladba znak\u016f hesla pestr\u00e1, bude t\u011b\u017e\u0161\u00ed ho prolomit, minim\u00e1ln\u011b naivn\u00ed.Program, kter\u00fd se sna\u017e\u00ed heslo \u201erozlousknout\u201c, porovn\u00e1v\u00e1 kombinace v\u0161ech znak\u016f \u2013 je mu tedy z podstaty v\u011bci srde\u010dn\u011b jedno, jestli je takov\u00fdm znakem p\u00edsmeno nebo lom\u00edtko. Jde tu jedin\u011b a pouze o mno\u017estv\u00ed znak\u016f a t\u00edm i nutnost prov\u00e9st v\u00edc po\u010detn\u00edch operac\u00ed. Ka\u017ed\u00fd znak nav\u00edc je k prolomen\u00ed hesla exponenci\u00e1ln\u011b n\u00e1ro\u010dn\u011bj\u0161\u00ed.Pro p\u0159edstaven\u00ed v praxi mal\u00fd p\u0159\u00edklad:Moje maminka pe\u010de v\u00fdborn\u00e9 tvarohov\u00e9 buchty.\u00a0 – toto je p\u0159\u00edklad ide\u00e1ln\u00edho hesla, mnohem bezpe\u010dn\u011bj\u0161\u00edho a l\u00e9pe zapamatovateln\u00e9ho ne\u017e nap\u0159\u00edklad 1N*bQ5_iU                                                                                                                                                                                                                                                                                                                                                                                        4.2\/5 - (6 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Je va\u0161e heslo bezpe\u010dn\u00e9?","item":"https:\/\/www.tasmina.cz\/je-vase-heslo-bezpecne\/#breadcrumbitem"}]}]