Nic nen\u00ed pro majitele kryptom\u011bn tak citliv\u00e9 jako pen\u011b\u017eenka a p\u0159\u00edstupov\u00e9 k\u00f3dy, lidov\u011b naz\u00fdvan\u00e9 kl\u00ed\u010de. Abyste pochopili, jak z\u00e1sadn\u00ed jsou v kryptom\u011bn\u00e1ch p\u0159\u00edstupov\u00e9 kl\u00ed\u010de, m\u016f\u017eete je p\u0159irovnat k PINu bankovn\u00ed karty. V b\u011b\u017en\u00e9m kontextu fiat pen\u011bz m\u016f\u017ee n\u011bkdo s va\u0161\u00ed bankovn\u00ed kartou vej\u00edt do haly bankomatu, vlo\u017eit kartu, vybrat pen\u00edze a odej\u00edt. Kamera pravd\u011bpodobn\u011b zachyt\u00ed vyb\u00edraj\u00edc\u00ed osobu a poskytne stopy pro p\u0159\u00edpad, \u017ee by se jednalo o podvod. Ale i kdy\u017e je mo\u017en\u00e9 p\u0159\u00edpad kr\u00e1de\u017ee identity skute\u010dn\u011b odhalit, nikdo nikdy neriskuje s bankovn\u00ed kartou a PIN k\u00f3dem.<\/p>\n
Analogie bankovn\u00ed karty a PINu se nejl\u00e9pe hod\u00ed na kl\u00ed\u010de kryptom\u011bnov\u00fdch pen\u011b\u017eenek. Jedn\u00e1 se o k\u00f3dy, kter\u00e9 umo\u017e\u0148uj\u00ed dr\u017eiteli kryptom\u011bny p\u0159istupovat ke sv\u00e9 pen\u011b\u017eence a iniciovat nebo dokon\u010dit transakce. Ve skute\u010dnosti existuj\u00ed v\u017edy dva kl\u00ed\u010de: soukrom\u00fd a ve\u0159ejn\u00fd. Poj\u010fme si soukrom\u00e9 kl\u00ed\u010de pen\u011b\u017eenky trochu rozd\u011blit.<\/p>\n
Soukrom\u00fd kl\u00ed\u010d je matematick\u00fd kl\u00ed\u010d pou\u017e\u00edvan\u00fd p\u0159i vytv\u00e1\u0159en\u00ed digit\u00e1ln\u00edch podpis\u016f a v z\u00e1vislosti na algoritmu de\u0161ifruje zpr\u00e1vy pomoc\u00ed odpov\u00eddaj\u00edc\u00edho ve\u0159ejn\u00e9ho kl\u00ed\u010de. \u0158\u00edk\u00e1 se mu tak\u00e9 tajn\u00fd kl\u00ed\u010d nebo sp\u00ed\u0161e heslo. Soukrom\u00fd kl\u00ed\u010d v kryptom\u011bn\u00e1ch<\/a> pln\u00ed funkci podepisov\u00e1n\u00ed transakc\u00ed a tak\u00e9 prokazov\u00e1n\u00ed vlastnictv\u00ed adres v blockchainu.<\/p>\n Soukrom\u00fd kl\u00ed\u010d je dlouh\u00fd a n\u00e1hodn\u00fd. Nikdo<\/a> ji tedy nem\u016f\u017ee snadno uhodnout<\/a>. D\u00e9lka a slo\u017eitost soukrom\u00e9ho kl\u00ed\u010de ur\u010duje, jak\u00fdm zp\u016fsobem m\u016f\u017ee \u00fato\u010dn\u00edk prov\u00e9st \u00fatok hrubou silou. V takov\u00e9m p\u0159\u00edpad\u011b mohou pou\u017e\u00edt r\u016fzn\u00e9 kl\u00ed\u010de, dokud nez\u00edskaj\u00ed ten spr\u00e1vn\u00fd. Bezpe\u010dnost \u0161ifrovac\u00edch kl\u00ed\u010d\u016f tedy z\u00e1vis\u00ed na udr\u017een\u00ed vysok\u00e9 \u00farovn\u011b provozn\u00ed bezpe\u010dnosti. Z\u00e1le\u017e\u00ed tak\u00e9 na pou\u017eit\u00ed siln\u00e9ho algoritmu.<\/p>\n Soukrom\u00fd kl\u00ed\u010d je vygenerov\u00e1n v\u017edy, kdy\u017e obchodn\u00edk vytvo\u0159\u00ed adresu blockchainu<\/a>. Mo\u017en\u00e1 bychom mohli p\u0159i vysv\u011btlov\u00e1n\u00ed l\u00e9pe vyu\u017e\u00edt e-mailovou adresu. Jako majitel e-mailov\u00e9 adresy d\u00e1v\u00e1 ostatn\u00edm lidem \u0161anci v\u00e1s zastihnout a dokonce v\u00e1m poslat zpr\u00e1vu. Proto je va\u0161e e-mailov\u00e1 adresa ekvivalentn\u00ed ve\u0159ejn\u00e9mu kl\u00ed\u010di.<\/p>\n Soukrom\u00fd kl\u00ed\u010d lze p\u0159irovnat k heslu, kter\u00e9 pou\u017e\u00edv\u00e1te p\u0159i p\u0159ihla\u0161ov\u00e1n\u00ed ke sv\u00e9 e-mailov\u00e9 adrese. Pr\u00e1v\u011b soukrom\u00fd kl\u00ed\u010d v\u00e1m d\u00e1v\u00e1 mo\u017enost otev\u00edrat adresy a p\u0159istupovat k v\u011bcem, kter\u00e9 jsou uvnit\u0159. Je to soukrom\u00fd kl\u00ed\u010d, kter\u00fd v\u00e1m poskytuje kontrolu nad aktivy kryptom\u011bny. Jako obchodn\u00edk nebo t\u011b\u017ea\u0159 tedy mus\u00edte sv\u016fj soukrom\u00fd kl\u00ed\u010d uchov\u00e1vat v bezpe\u010d\u00ed, aby se k n\u011bmu nikdo nedostal.<\/p>\n K de\u0161ifrov\u00e1n\u00ed a \u0161ifrov\u00e1n\u00ed se pou\u017e\u00edv\u00e1 soukrom\u00fd kl\u00ed\u010d. Funguje to tak, \u017ee se vygeneruje nov\u00fd soukrom\u00fd kl\u00ed\u010d. Nap\u0159\u00edklad p\u0159ed vygenerov\u00e1n\u00edm nov\u00e9ho kl\u00ed\u010de, kter\u00fd je pokud mo\u017eno n\u00e1hodn\u00fd. Proto se p\u0159i generov\u00e1n\u00ed soukrom\u00fdch kl\u00ed\u010d\u016f pou\u017e\u00edv\u00e1 \u0161ifrovac\u00ed software.<\/p>\n P\u0159i v\u00fdm\u011bn\u011b kl\u00ed\u010d\u016f nav\u00edc pom\u00e1h\u00e1 soukrom\u00fd kl\u00ed\u010d. K tomu slou\u017e\u00ed de\u0161ifrov\u00e1n\u00ed a \u0161ifrov\u00e1n\u00ed, tak\u017ee p\u0159i pou\u017eit\u00ed pro symetrick\u00e9 \u0161ifrov\u00e1n\u00ed je nutn\u00e1 v\u00fdm\u011bna kl\u00ed\u010de p\u0159i bezpe\u010dn\u00e9m sd\u00edlen\u00ed kl\u00ed\u010de. Sd\u00edl\u00ed se v\u0161ak pouze s d\u016fv\u011bryhodn\u00fdmi stranami, kter\u00e9 jsou opr\u00e1vn\u011bny k v\u00fdm\u011bn\u011b zabezpe\u010den\u00fdch dat. P\u0159i automatizaci procesu se pou\u017e\u00edv\u00e1 kryptografick\u00fd software.<\/p>\n Po vygenerov\u00e1n\u00ed soukrom\u00e9ho kl\u00ed\u010de je t\u0159eba jej bezpe\u010dn\u011b ulo\u017eit. V z\u00e1vislosti na aplikaci mohou b\u00fdt kl\u00ed\u010de ulo\u017eeny offline nebo online (v po\u010d\u00edta\u010di pou\u017e\u00edvan\u00e9m k \u0161ifrov\u00e1n\u00ed, de\u0161ifrov\u00e1n\u00ed a generov\u00e1n\u00ed dat). Soukrom\u00e9 kl\u00ed\u010de lze nav\u00edc chr\u00e1nit heslem, \u0161ifrov\u00e1n\u00edm nebo hashov\u00e1n\u00edm.<\/p>\n Pro \u0161ifrov\u00e1n\u00ed jsou nejlep\u0161\u00ed soukrom\u00e9 kl\u00ed\u010de. Je to proto, \u017ee v\u011bt\u0161ina kryptografick\u00fdch proces\u016f ji vyu\u017e\u00edv\u00e1 p\u0159i \u0161ifrov\u00e1n\u00ed datov\u00fdch p\u0159enos\u016f. P\u0159i bezpe\u010dn\u00e9m sd\u00edlen\u00ed tajn\u00fdch kl\u00ed\u010d\u016f se pou\u017e\u00edv\u00e1 algoritmus ve\u0159ejn\u00e9ho kl\u00ed\u010de. Dal\u0161\u00ed v\u00fdhodou soukrom\u00fdch kl\u00ed\u010d\u016f je, \u017ee jsou ve srovn\u00e1n\u00ed s ve\u0159ejn\u00fdmi kl\u00ed\u010di bezpe\u010dn\u011bj\u0161\u00ed. Krom\u011b toho, \u017ee jsou del\u0161\u00ed, maj\u00ed velkou entropii nebo sp\u00ed\u0161e nahodilost. Jsou tak l\u00e9pe zabezpe\u010deny proti slovn\u00edkov\u00fdm \u00fatok\u016fm nebo \u00fatok\u016fm hrubou silou.<\/p>\n Kl\u00ed\u010de<\/a> nav\u00edc funguj\u00ed pro blokov\u00e9 i proudov\u00e9 \u0161if<\/a>ry. \u0160ifry s tajn\u00fdm kl\u00ed\u010dem se t\u00fdkaj\u00ed algoritmu pou\u017e\u00edvan\u00e9ho p\u0159i de\u0161ifrov\u00e1n\u00ed a \u0161ifrov\u00e1n\u00ed dat. Rozd\u011bluj\u00ed se hlavn\u011b do dvou kategori\u00ed: blokov\u00e9 \u0161ifry a proudov\u00e9 \u0161ifry. Proudov\u00e1 \u0161ifra pou\u017e\u00edv\u00e1 algoritmus a kl\u00ed\u010d po jednom bitu, zat\u00edmco blokov\u00e1 \u0161ifra pou\u017e\u00edv\u00e1 algoritmus i soukrom\u00fd kl\u00ed\u010d sou\u010dasn\u011b v bloku dat. A kone\u010dn\u011b, soukrom\u00e9 kl\u00ed\u010de jsou rychlej\u0161\u00ed.<\/p>\n Jakkoli soukrom\u00fd kl\u00ed\u010d zvy\u0161uje vysokou \u00farove\u0148 zabezpe\u010den\u00ed, m\u00e1 sv\u00e9 probl\u00e9my. Prvn\u00ed v\u00fdzvou je neust\u00e1l\u00e1 aktualizace. Soukrom\u00e9 kl\u00ed\u010de, kter\u00e9 pom\u00e1haj\u00ed p\u0159i \u0161ifrov\u00e1n\u00ed citliv\u00fdch dat, by se m\u011bly pravideln\u011b m\u011bnit. To pom\u016f\u017ee minimalizovat riziko v p\u0159\u00edpad\u011b jejich kr\u00e1de\u017ee nebo \u00faniku.<\/p>\n Druhou v\u00fdzvou je zotaven\u00ed a ztr\u00e1ta. Pokud je \u0161ifrovac\u00ed kl\u00ed\u010d nedostupn\u00fd, data za\u0161ifrovan\u00e1 t\u00edmto kl\u00ed\u010dem budou ztracena. Data tak\u00e9 nebude mo\u017en\u00e9 obnovit. To je nev\u00fdhodn\u00e9, proto\u017ee m\u016f\u017eete p\u0159ij\u00edt o v\u0161echny sv\u00e9 kryptom\u011bny.<\/p>\n A kone\u010dn\u011b, jej\u00ed celkov\u00e9 \u0159\u00edzen\u00ed nen\u00ed dobr\u00e9. M\u011bla by existovat spr\u00e1va \u0161ifrovac\u00edch kl\u00ed\u010d\u016f, kter\u00e1 pom\u00e1h\u00e1 chr\u00e1nit kryptografick\u00e9 kl\u00ed\u010de p\u0159ed ztr\u00e1tou. M\u011bly by tak\u00e9 pomoci zabr\u00e1nit neopr\u00e1vn\u011bn\u00e9mu p\u0159\u00edstupu a po\u0161kozen\u00ed. Nap\u0159\u00edklad v p\u0159\u00edpad\u011b, \u017ee zapomenete heslo k e-mailu, m\u00e1te mo\u017enost heslo obnovit.<\/p>\n Sv\u00e9 soukrom\u00e9 kl\u00ed\u010de m\u016f\u017eete ulo\u017eit do mobiln\u00edch telefon\u016f nebo po\u010d\u00edta\u010d\u016f. Krom\u011b toho je m\u016f\u017eete ulo\u017eit na kus pap\u00edru, do specializovan\u00e9 hardwarov\u00e9 pen\u011b\u017eenky a na USB disky. Forma \u00falo\u017ei\u0161t\u011b se v\u0161ak obvykle odv\u00edj\u00ed od toho, jak \u010dasto budete kryptom\u011bny pou\u017e\u00edvat.<\/p>\n Pro ka\u017edodenn\u00ed pou\u017eit\u00ed je nejlep\u0161\u00edm zp\u016fsobem ulo\u017een\u00ed soukrom\u00e9ho kl\u00ed\u010de po\u010d\u00edta\u010d nebo mobiln\u00ed telefon chr\u00e1n\u011bn\u00fd heslem<\/a>. P\u0159i chlad\u00edrensk\u00e9m nebo dlouhodob\u00e9m skladov\u00e1n\u00ed byste v\u0161ak m\u011bli kl\u00ed\u010de uchov\u00e1vat v re\u017eimu offline. To lze prov\u00e9st i na za\u0159\u00edzen\u00edch, kter\u00e1 nepou\u017e\u00edvaj\u00ed internet. Hardwarov\u00e9 pen\u011b\u017eenky umo\u017e\u0148uj\u00ed chlad\u00edrensk\u00e9 skladov\u00e1n\u00ed. , sta\u010d\u00ed podepisovat transakce zp\u016fsobem, kter\u00fd neohroz\u00ed soukrom\u00e9 kl\u00ed\u010de.<\/p>\n <\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Nic nen\u00ed pro majitele kryptom\u011bn tak citliv\u00e9 jako pen\u011b\u017eenka a p\u0159\u00edstupov\u00e9 k\u00f3dy, lidov\u011b naz\u00fdvan\u00e9 kl\u00ed\u010de. Abyste pochopili, jak z\u00e1sadn\u00ed jsou v kryptom\u011bn\u00e1ch p\u0159\u00edstupov\u00e9 kl\u00ed\u010de, m\u016f\u017eete je p\u0159irovnat k PINu bankovn\u00ed karty. V b\u011b\u017en\u00e9m kontextu fiat pen\u011bz m\u016f\u017ee n\u011bkdo s va\u0161\u00ed bankovn\u00ed kartou vej\u00edt do haly bankomatu, vlo\u017eit kartu, vybrat pen\u00edze a odej\u00edt. Kamera pravd\u011bpodobn\u011b zachyt\u00ed … Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":9887,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[619,909],"tags":[4430,5169,5161,5152,5149],"class_list":["post-10026","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kryptomena","category-technologie-blockchain","tag-blockchain-cs","tag-heslo","tag-offline-uloziste","tag-skladovani-v-chladu","tag-soukromy-klic"],"_links":{"self":[{"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/posts\/10026","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/comments?post=10026"}],"version-history":[{"count":0,"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/posts\/10026\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/media\/9887"}],"wp:attachment":[{"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/media?parent=10026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/categories?post=10026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crypto50x.com\/cs\/wp-json\/wp\/v2\/tags?post=10026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Odkud se berou soukrom\u00e9 kl\u00ed\u010de?<\/h2>\n
Zp\u016fsob fungov\u00e1n\u00ed soukrom\u00e9ho kl\u00ed\u010de<\/h2>\n
V\u00fdhody soukrom\u00fdch \u0161ifrovac\u00edch kl\u00ed\u010d\u016f<\/h2>\n
Omezen\u00ed spr\u00e1vy soukrom\u00fdch \u0161ifrovac\u00edch kl\u00ed\u010d\u016f<\/h2>\n
Nejlep\u0161\u00ed zp\u016fsoby ukl\u00e1d\u00e1n\u00ed soukrom\u00fdch kl\u00ed\u010d\u016f<\/h2>\n