{"id":16,"date":"2016-05-10T21:58:07","date_gmt":"2016-05-10T20:58:07","guid":{"rendered":"http:\/\/www.ict.mazuch.net\/subdom\/ict\/?page_id=16"},"modified":"2016-05-15T17:21:45","modified_gmt":"2016-05-15T16:21:45","slug":"5-klientske-aplikace-pro-email-a-web-6-elektronicky-podpis","status":"publish","type":"page","link":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/5-klientske-aplikace-pro-email-a-web-6-elektronicky-podpis\/","title":{"rendered":"(5) Klientsk\u00e9 aplikace pro email a web, (6) Elektronick\u00fd podpis"},"content":{"rendered":"<div class=\"pdfprnt-buttons pdfprnt-buttons-page pdfprnt-top-right\"><a href=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/pages\/16?print=pdf\" class=\"pdfprnt-button pdfprnt-button-pdf\" target=\"_blank\"><img src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/plugins\/pdf-print\/images\/pdf.png\" alt=\"image_pdf\" title=\"View PDF\" \/><\/a><a href=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/pages\/16?print=print\" class=\"pdfprnt-button pdfprnt-button-print\" target=\"_blank\"><img src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/plugins\/pdf-print\/images\/print.png\" alt=\"image_print\" title=\"Print Content\" \/><\/a><\/div><div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus-circle su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Osnova<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ol>\n<li>Emailov\u00fd klient\n<ol>\n<li>Funkce emailov\u00e9ho klienat<\/li>\n<li>Internetov\u00fd protokol\n<ol>\n<li>P\u0159\u00edchoz\u00ed zpr\u00e1vy\n<ol>\n<li>POP3<\/li>\n<li>IMAP<\/li>\n<li>V\u00fdhody IMAPu v porovn\u00e1n\u00ed s POP3<\/li>\n<\/ol>\n<\/li>\n<li>Odchoz\u00ed zpr\u00e1vy\n<ol>\n<li>SMTP<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<li>Porty nejzn\u00e1m\u011bj\u0161\u00edch emailov\u00fdch poskytovatel\u016f (Seznam, Outlook, Gmail)<\/li>\n<li>P\u0159\u00edklady emailov\u00fdch klient\u016f\n<ol>\n<li>Windows<\/li>\n<li>Android<\/li>\n<li>Webmail software<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<li>Webov\u00e9 aplikace pro email, poskytovatel\u00e9 emailu<\/li>\n<li>Elektronick\u00fd podpis, certifik\u00e1t, \u0161ifrov\u00e1n\u00ed\n<ol>\n<li>Import certifik\u00e1tu do Outlooku 2016<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/div><\/div>\n<h2>E-mailov\u00fd klient<\/h2>\n<p>= po\u0161tovn\u00ed klient<\/p>\n<ul>\n<li>je po\u010d\u00edta\u010dov\u00fd program, kter\u00fd slou\u017e\u00ed k p\u0159ij\u00edm\u00e1n\u00ed, odes\u00edl\u00e1n\u00ed a spr\u00e1v\u011b elektronick\u00e9 po\u0161ty (e-mail\u016f)<\/li>\n<li>Po\u0161tu nej\u010dast\u011bji ukl\u00e1d\u00e1 na lok\u00e1ln\u00ed disk (C:) a zpr\u00e1vy a dal\u0161\u00ed informace si se serverem poskytovatele emailov\u00e9 schr\u00e1nky vym\u011b\u0148uje pomoc\u00ed internetov\u00fdch protokol\u016f<\/li>\n<li>umo\u017e\u0148uj\u00ed i spravovat kontakty (adres\u00e1\u0159) \u010di filtrovat nevy\u017e\u00e1danou po\u0161tu<\/li>\n<\/ul>\n<h3>Funkce po\u0161tovn\u00edho klienta<\/h3>\n<ul>\n<li><strong>p\u0159ipojov\u00e1n\u00ed<\/strong> (!!!) k po\u0161tovn\u00ed schr\u00e1nce, do kter\u00e9 je e-mail p\u0159enesen a ulo\u017een v p\u0159\u00edslu\u0161n\u00e9m form\u00e1tu.<\/li>\n<li>Po\u0161tovn\u00ed klient typicky poskytuje z\u00e1kladn\u00edmu u\u017eivatelsk\u00e9mu rozhran\u00ed vykon\u00e1vat \u00falohy s po\u0161tou.<\/li>\n<li>S\u00e1m o sob\u011b neschopn\u00fd pos\u00edl\u00e1n\u00ed a p\u0159ij\u00edm\u00e1n\u00ed po\u0161ty (IMAP, POP3, SMTP)<\/li>\n<li>Je schopen, prost\u0159ednictv\u00edm t\u011bch protokol\u016f. P\u0159ed\u00e1v\u00e1 po\u0161tu po\u0161tovn\u00edmu serveru.<\/li>\n<\/ul>\n<h3>Internetov\u00fd protokol<\/h3>\n<h4>A)\u00a0\u00a0 P\u0159\u00edchoz\u00ed zpr\u00e1vy<\/h4>\n<ul>\n<li>POP3, IMAP<\/li>\n<\/ul>\n<h5>POP<\/h5>\n<ul>\n<li>= Post Office Protocol <em>(po\u0161ta, kancel\u00e1\u0159, protokol)<\/em><\/li>\n<li><span style=\"color: #ff0000;\"><strong><u>POP3<\/u>: stahuje v\u0161e z po\u0161tovn\u00edho serveru, co sma\u017eu u sebe m\u016f\u017ee z\u016fstat na serveru \u21d2 vytv\u00e1\u0159\u00ed kopie do klienta<\/strong><\/span><\/li>\n<li>stahov\u00e1n\u00ed emailov\u00fdch zpr\u00e1v ze vzd\u00e1len\u00e9ho serveru na klienta<\/li>\n<li>pou\u017e\u00edv\u00e1 se pro rychl\u00e9 a pohodln\u00e9 stahov\u00e1n\u00ed zpr\u00e1v ze serveru do vlastn\u00edho po\u010d\u00edta\u010de.<\/li>\n<li>pracuje p\u0159es TCP\/IP p\u0159ipojen\u00ed\n<ul>\n<li><em>Transmission Control Protocol\/Internet <\/em><em>(p\u0159enos, \u0159\u00edzen\u00ed, protokol)<\/em><\/li>\n<li><em>= obsahuje sadu protokol\u016f pro komunikaci v po\u010d\u00edta\u010dov\u00e9 s\u00edti <\/em><\/li>\n<li><em>hlavn\u00edm protokolem celosv\u011btov\u00e9 s\u00edt\u011b Internet<\/em><\/li>\n<\/ul>\n<\/li>\n<li>V\u00a0sou\u010dasnosti \u2013 3. verze (od r. 1996) \u21d2 <u>POP3<\/u><\/li>\n<li>Ze vzd\u00e1len\u00e9ho serveru <u>se st\u00e1hnou v\u0161echny zpr\u00e1vy<\/u> (t\u0159eba i ty, kter\u00e9 u\u017eivatel \u010d\u00edst nechce, nebo spam <em>(pokud ho ji\u017e nefiltruje po\u0161tovn\u00ed server)<\/em>)<em>.<\/em><\/li>\n<li>V\u011bt\u0161ina POP3 server\u016f sice umo\u017e\u0148uje st\u00e1hnout i pouze hlavi\u010dky zpr\u00e1v (a n\u00e1sledn\u011b vybrat zpr\u00e1vy, kter\u00e9 se st\u00e1hnou cel\u00e9), ale podpora v klientech vesm\u011bs chyb\u00ed.<\/li>\n<li>Tuto nev\u00fdhodu m\u016f\u017ee odstranit protokol IMAP, kter\u00fd pracuje se zpr\u00e1vami p\u0159\u00edmo na serveru.<\/li>\n<li>Pro odes\u00edl\u00e1n\u00ed zpr\u00e1v se pou\u017e\u00edv\u00e1 protokol SMTP, nez\u00e1visle na pou\u017eit\u00e9m protokolu pro p\u0159\u00edjem po\u0161ty.<\/li>\n<\/ul>\n<h5>IMAP<\/h5>\n<ul>\n<li>= Internet Message Access Protocol <em>(internet, zpr\u00e1va, p\u0159\u00edstup, protokol)<\/em><\/li>\n<li><strong><span style=\"color: #ff0000;\"><u>IMAP<\/u>: co sma\u017eu u sebe, sma\u017eu i ze serveru \u21d2 pracuje rovnou na serveru<\/span><\/strong><\/li>\n<li><u>vzd\u00e1len\u00fd p\u0159\u00edstup<\/u> k e-mailov\u00e9 schr\u00e1nce prost\u0159ednictv\u00edm e-mailov\u00e9ho <u>klienta<\/u><\/li>\n<li><u>Co se sma\u017ee v\u00a0lok\u00e1ln\u00ed schr\u00e1nce, sma\u017ee se i na severu<\/u><\/li>\n<li>IMAP nab\u00edz\u00ed oproti <u>jednodu\u0161\u0161\u00ed<\/u> <u>alternativ\u011b<\/u> POP3 <u>pokro\u010dil\u00e9 mo\u017enosti vzd\u00e1len\u00e9 spr\u00e1vy<\/u><br \/>\n\u00e0 pr\u00e1ce se slo\u017ekami a p\u0159esouv\u00e1n\u00ed zpr\u00e1v mezi nimi, prohled\u00e1v\u00e1n\u00ed na stran\u011b<br \/>\nserveru a podobn\u011b) a<br \/>\n\u00e0 pr\u00e1ci v tzv. on-line i off-line re\u017eimu<\/li>\n<li>V\u00a0sou\u010dasn\u00e9 dob\u011b \u2013 <u>IMAP4<\/u><\/li>\n<li>umo\u017e\u0148uje <u>trval\u00e9<\/u> (tzv. on-line) <u>p\u0159ipojen\u00ed<\/u> k e-mailov\u00e9 schr\u00e1nce<\/li>\n<li>umo\u017e\u0148uje s celou po\u0161tovn\u00ed schr\u00e1nkou pln\u011b <u>pracovat z libovoln\u00e9ho m\u00edsta<\/u><\/li>\n<li>zpr\u00e1vy a slo\u017eky jsou ulo\u017eeny na <u>po\u0161tovn\u00edm serveru a na po\u010d\u00edta\u010d se stahuj\u00ed jen nezbytn\u00e9 informace<\/u>, tak\u017ee p\u0159i zobrazen\u00ed slo\u017eky se st\u00e1hnou jen z\u00e1hlav\u00ed zpr\u00e1v a jejich obsah a\u017e v p\u0159\u00edpad\u011b, \u017ee zpr\u00e1vu chce u\u017eivatel p\u0159e\u010d\u00edst<\/li>\n<li>U <u>jednotliv\u00fdch zpr\u00e1v se uchov\u00e1v\u00e1 jejich stav<\/u> (<em>nep\u0159e\u010dten\u00e1<\/em>, <em>odpov\u011bzen\u00e1<\/em>, <em>d\u016fle\u017eit\u00e1<\/em>),<\/li>\n<li>u\u017eivatel m\u016f\u017ee zpr\u00e1vy p\u0159esouvat mezi slo\u017ekami, slo\u017eky vytv\u00e1\u0159et, mazat, prohled\u00e1vat na stran\u011b serveru apod. Protokol umo\u017e\u0148uje sou\u010dasn\u00e9 p\u0159ipojen\u00ed v\u00edce klient\u016f z\u00e1rove\u0148<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><em>Porovn\u00e1n\u00ed <em>IMAPu<\/em> s\u00a0protokolem <em>POP3<\/em><\/em><\/p>\n<table style=\"height: 209px;\" width=\"765\">\n<tbody>\n<tr>\n<td width=\"378\">V\u00ddHODY IMAPU<\/td>\n<td width=\"378\">NEV\u00ddHODY IMAPu<\/td>\n<\/tr>\n<tr>\n<td width=\"378\">\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 st\u00e1l\u00e9 p\u0159ipojen\u00ed<\/p>\n<p>\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mo\u017enost p\u0159ipojen\u00ed v\u00edce koliet\u016f sou\u010dasn\u011b<\/p>\n<p>\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Pr\u00e1ce se slo\u017ekami na stran\u011b serveru<\/p>\n<p>\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Roz\u0161\u00ed\u0159en\u00ed<\/p>\n<p>\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Nestahuj\u00ed se v\u0161echny zpr\u00e1vy \u2013 pouze u\u017eivatelem ur\u010den\u00e9 (\u0161et\u0159\u00ed m\u00edsto na disku)<\/td>\n<td width=\"378\">\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Komplikovan\u00fd protokol (porty, atp.)<\/p>\n<p>\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Implementace \u2013 slo\u017eit\u011bj\u0161\u00ed, n\u00e1chyln\u011bj\u0161\u00ed na chyby<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h4>B)\u00a0\u00a0 Odchoz\u00ed zpr\u00e1vy<\/h4>\n<h5>SMTP<\/h5>\n<ul>\n<li>= Simple mail transfere protocol<\/li>\n<li>pro <u>p\u0159enos<\/u> <u>zpr\u00e1v<\/u> elektronick\u00e9 po\u0161ty (e-mail\u016f) mezi p\u0159epravci elektronick\u00e9 po\u0161ty<\/li>\n<li>zaji\u0161\u0165uje doru\u010den\u00ed po\u0161ty pomoc\u00ed p\u0159\u00edm\u00e9ho spojen\u00ed mezi odes\u00edlatelem a adres\u00e1tem<\/li>\n<li>je doru\u010dena do tzv. po\u0161tovn\u00ed schr\u00e1nky adres\u00e1ta, ke kter\u00e9 potom m\u016f\u017ee u\u017eivatel kdykoli (off-line) p\u0159istupovat (vyb\u00edrat zpr\u00e1vy) pomoc\u00ed protokol\u016f POP3 nebo IMAP<\/li>\n<li>jeden z\u00a0nejstar\u0161\u00edch protokol\u016f<\/li>\n<li>funguje nad protokolem TCP, pou\u017e\u00edv\u00e1 port TCP\/25 pro komunikaci mezi po\u0161tovn\u00edmi servery a port TCP\/587 pro p\u0159\u00edjem e-mail\u016f od e-mailov\u00fdch klient\u016f<\/li>\n<\/ul>\n<h4>C)\u00a0\u00a0 Porty nejzn\u00e1m\u011bj\u0161\u00edch emailov\u00fdch posytovatel\u016f<\/h4>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-17\" src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/google_porty.png\" alt=\"google_porty\" width=\"717\" height=\"383\" srcset=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/google_porty.png 717w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/google_porty-300x160.png 300w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/google_porty-50x27.png 50w\" sizes=\"(max-width: 717px) 100vw, 717px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-18\" src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/outlook_porty.png\" alt=\"outlook_porty\" width=\"735\" height=\"328\" srcset=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/outlook_porty.png 735w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/outlook_porty-300x134.png 300w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/outlook_porty-50x22.png 50w\" sizes=\"(max-width: 735px) 100vw, 735px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-108\" src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/imap_pop.png\" alt=\"imap_pop\" width=\"376\" height=\"344\" srcset=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/imap_pop.png 376w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/imap_pop-300x274.png 300w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/imap_pop-50x46.png 50w\" sizes=\"(max-width: 376px) 100vw, 376px\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-21\" src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/seznam_porty.png\" alt=\"seznam_porty\" width=\"266\" height=\"537\" srcset=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/seznam_porty.png 266w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/seznam_porty-149x300.png 149w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/seznam_porty-25x50.png 25w\" sizes=\"(max-width: 266px) 100vw, 266px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3>P\u0159\u00edklady e-mailov\u00fdch klient\u016f<\/h3>\n<h4>Windows<\/h4>\n<ul>\n<li><u>Outlook<\/u> (sou\u010d\u00e1st\u00ed bal\u00ed\u010dku Office 365)<\/li>\n<li><u>Mozilla Thundrbird<\/u> (freeware software)<\/li>\n<li><u>Po\u0161ta (Windows 10)<\/u><\/li>\n<\/ul>\n<h4>Android (aplikace \/pro GooglePlay\/ pro spr\u00e1vu email\u016f v\u00a0za\u0159\u00edzen\u00ed s\u00a0OS Android)<\/h4>\n<ul>\n<li><u>Email.cz<\/u><\/li>\n<li><u>Gmail<\/u><\/li>\n<li><u>Microsoft Outlook<\/u><\/li>\n<li><em>P\u0159einstalovan\u00e9 aplikace pro spr\u00e1vu emailu<\/em><\/li>\n<li>Google Play: (<a href=\"https:\/\/play.google.com\/store\/search?q=Email\">https:\/\/play.google.com\/store\/search?q=Email<\/a>)<\/li>\n<\/ul>\n<h4>Webmail Software<\/h4>\n<ul>\n<li>Vlastn\u00ed server (?)<\/li>\n<li>U\u017e\u00edvaj\u00ed se nap\u0159. ve v\u011bt\u0161\u00edch firm\u00e1ch ke spr\u00e1v\u011b emailov\u00fdch dom\u00e9n \u2014 tzn. Vlastn\u00ed dom\u00e9na a vlastn\u00ed email &gt; \u201esefik@mojefirma.cz\u201c<\/li>\n<li>P\u0159\u00edstup p\u0159es web (wmail.wedos.net resp. xxx.mojefirma.cz =&gt;\u00a0pot\u0159eba rozs\u00e1hlej\u0161\u00edch mo\u017enost\u00ed PHP p\u0159\u00edstup\u016f, co\u017e n\u011bkte\u0159\u00ed poskytovatel\u00e9 webhostingu neumo\u017e\u0148uj\u00ed \/Wedos\/) &lt;&gt;\u00a0<u>Roundcube<\/u><\/li>\n<li><span style=\"text-decoration: underline;\">IceWarp<\/span> &gt;\u00a0placen\u00e1<\/li>\n<\/ul>\n<h2>Webov\u00e9 aplikace pro email \/ poskytovatel\u00e9 emailu<\/h2>\n<ul>\n<li>Google Gmail (<a href=\"https:\/\/mail.google.com\/\">https:\/\/mail.google.com\/<\/a>)<\/li>\n<li>Microsoft Outlook (b\u00fdv. hotmail \/ msn) (<a href=\"https:\/\/www.outlook.com\/\">https:\/\/www.outlook.com\/<\/a>; <a href=\"https:\/\/www.hotmail.com\/\">https:\/\/www.hotmail.com\/<\/a>)<\/li>\n<li>Seznam (<a href=\"https:\/\/email.seznam.cz\/\">https:\/\/email.seznam.cz\/<\/a>)<\/li>\n<li>Centrum (<a href=\"https:\/\/mail.centrum.cz\/\">https:\/\/mail.centrum.cz\/<\/a>)<\/li>\n<li>Voln\u00fd (<a href=\"https:\/\/mail.volny.cz\/\">https:\/\/mail.volny.cz\/<\/a>)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>Klientsk\u00e9 aplikace pro web<\/h2>\n<ul>\n<li><strong>Renderovac\u00ed j\u00e1dro prohl\u00ed\u017ee\u010de<\/strong>\n<ul>\n<li>vykreslovac\u00ed j\u00e1dro prohl\u00ed\u017ee\u010de<\/li>\n<li>je software, kter\u00fd na\u010dte zdrojov\u00fd k\u00f3d webov\u00e9 str\u00e1nky skl\u00e1daj\u00edc\u00ed se ze struktur\u00e1ln\u00edch a obsahov\u00fdch informac\u00ed zapsan\u00fdch ve zna\u010dkov\u00e9m jazyce (HTML, XML) a form\u00e1tovac\u00edch informac\u00ed (CSS)<\/li>\n<li>nap\u0159.: Blink (Google Chrome, Opera, Maxthon), Gecko (Mozilla Firefox), Tasman (Internet Explorer, Mac), Webcore (Safari)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Textov\u00e9 webov\u00e9 prohl\u00ed\u017ee\u010de<\/strong>\n<ul>\n<li>Lynx, Links (p\u016fvodn\u00ed verze vyvinuta v \u010cR)<\/li>\n<li>Pou\u017e\u00edv\u00e1ny v Linuxu<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h2>Elektronick\u00fd podpis, certifik\u00e1t, \u0161ifrov\u00e1n\u00ed emailu<\/h2>\n<p>Webov\u00e9 str\u00e1nky pro vytvo\u0159en\u00ed certifik\u00e1tu (tzv. certifika\u010dn\u00ed autority) online zdarma<\/p>\n<ul>\n<li><a href=\"https:\/\/www.comodo.com\/\">https:\/\/www.comodo.com\/<\/a><\/li>\n<li><a href=\"http:\/\/www.cacert.org\/\">http:\/\/www.cacert.org\/<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Elektronick\u00fd podpis<\/h3>\n<ul>\n<li>vytvo\u0159en pro konkr\u00e9tn\u00ed data a je mo\u017en\u00e9 pomoc\u00ed po\u010d\u00edta\u010de ov\u011b\u0159it, zda je platn\u00fd a zda jsou data v t\u00e9 podob\u011b, ve kter\u00e9 byla podeps\u00e1na.<\/li>\n<li>Sou\u010d\u00e1st\u00ed elektronick\u00e9ho podpisu je identifikace toho, kdo podpis vytvo\u0159il.\n<ul>\n<li>\u21d2 K tomu se vyu\u017e\u00edv\u00e1 digit\u00e1ln\u00ed certifik\u00e1t a certifika\u010dn\u00ed autorita.<\/li>\n<\/ul>\n<\/li>\n<li>Pou\u017e\u00edv\u00e1ny kv\u016fli identifikaci protistrany p\u0159i vytv\u00e1\u0159en\u00ed zabezpe\u010den\u00e9ho spojen\u00ed (HTTPS).\n<ul>\n<li>\u2192\u00a0digit\u00e1ln\u00ed certifik\u00e1t umo\u017e\u0148uje identifikaci skute\u010dn\u00e9ho odes\u00edlatele zpr\u00e1vy.<\/li>\n<\/ul>\n<\/li>\n<li>V\u00a0roce 2014 existovali v\u00a0\u010cR 3 subjekty.<\/li>\n<\/ul>\n<h3>\u0160ifrov\u00e1n\u00ed<\/h3>\n<ul>\n<li>Elektronick\u00fd (digit\u00e1ln\u00ed) podpis je zpr\u00e1va upraven\u00e1 pomoc\u00ed soukrom\u00e9ho kl\u00ed\u010de autora zpr\u00e1vy. Ve skute\u010dnosti se p\u0159i elektronick\u00e9m podepisov\u00e1n\u00ed nepracuje s celou zpr\u00e1vou, ale jen s v\u00fdtahem zpr\u00e1vy (anglicky hash). Proto\u017ee odes\u00edlatel elektronicky podepsan\u00e9 zpr\u00e1vy je jedin\u00fdm vlastn\u00edkem soukrom\u00e9ho (tajn\u00e9ho) kl\u00ed\u010de, tak je zaru\u010dena autenti\u010dnost zpr\u00e1vy. Ov\u011b\u0159en\u00ed elektronick\u00e9ho (digit\u00e1ln\u00edho) podpisu pak prob\u00edh\u00e1 za pou\u017eit\u00ed ve\u0159ejn\u00e9ho kl\u00ed\u010de autora. Spo\u010d\u00edv\u00e1 v nez\u00e1visl\u00e9m v\u00fdpo\u010dtu hashe z dokumentu (hash1) a de\u0161ifrov\u00e1n\u00ed hashe elektronick\u00e9ho podpisu pomoc\u00ed ve\u0159ejn\u00e9ho kl\u00ed\u010de autora. T\u00edm dostaneme hash2. Pokud se v\u00fdsledky rovnaj\u00ed (hash1 = hash2), tak je zpr\u00e1va pova\u017eov\u00e1na za d\u016fv\u011bryhodnou. P\u0159i \u0161ifrov\u00e1n\u00ed se pou\u017e\u00edv\u00e1 ve\u0159ejn\u00fd kl\u00ed\u010d p\u0159\u00edjemce zpr\u00e1vy, kter\u00fd je pak jedin\u00fd, kdo si m\u016f\u017ee zpr\u00e1vu p\u0159e\u010d\u00edst<\/li>\n<\/ul>\n<h3>Digit\u00e1ln\u00ed certifik\u00e1t<\/h3>\n<ul>\n<li>Digit\u00e1ln\u011b podepsan\u00fd ve\u0159ejn\u00fd \u0161ifrovac\u00ed kl\u00ed\u010d.<\/li>\n<li>Je vyd\u00e1v\u00e1n certifika\u010dn\u00ed autoritou (CA)\n<ul>\n<li>Certifika\u010dn\u00ed autority jsou definov\u00e1ny z\u00e1kony.<\/li>\n<li><em>Certifika\u010dn\u00ed autorita se v z\u00e1kon\u011b 227\/2000 Sb. o elektronick\u00e9m podpisu se naz\u00fdv\u00e1 \u201eposkytovatel certifika\u010dn\u00edch slu\u017eeb\u201c<\/em><\/li>\n<\/ul>\n<\/li>\n<li>Vyd\u00e1n\u00edm certifik\u00e1tu CA stvrzuje, \u017ee subjekt skute\u010dn\u011b vlastn\u00ed dan\u00fd p\u00e1r kl\u00ed\u010d\u016f.\n<ul>\n<li>CA \u2014 dostate\u010dn\u011b d\u016fv\u011bryhodn\u00e1 organizace (nutn\u00e1 d\u016fv\u011bra obou komunikuj\u00edc\u00edch stran)<\/li>\n<\/ul>\n<\/li>\n<li>Lze p\u0159irovnat k\u00a0ob\u010dansk\u00e9mu pr\u016fkazu\n<ul>\n<li>OP: <em>fotografie<\/em>, <em>vlastnoru\u010dn\u00ed<\/em> <em>podpis<\/em>, <em>otisk<\/em> <em>prstu<\/em><br \/>\n= toto zastupuje v\u00a0digit\u00e1ln\u00edm certifik\u00e1tu ve\u0159ejn\u00fd kl\u00ed\u010d<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><em>Ka\u017ed\u00fd certifik\u00e1t mus\u00ed obsahovat n\u00e1sleduj\u00edc\u00ed \u00fadaje:<\/em><\/p>\n<ol>\n<li><u>S\u00e9riov\u00e9 \u010d\u00edslo<\/u> \u2014 \u010d\u00edslo mus\u00ed b\u00fdt unik\u00e1tn\u00ed<\/li>\n<li><u>Datum po\u010d\u00e1tku a konce platnosti certifik\u00e1tu<\/u><\/li>\n<li><u>Identifika\u010dn\u00ed \u00fadaje subjektu, kter\u00e9mu je certifik\u00e1t ud\u00e1v\u00e1n<\/u><br \/>\n\u2014 tyto \u00fadaje mus\u00ed b\u00fdt CA spolehliv\u011b ov\u011b\u0159eny<br \/>\n\u2014 v\u00a0p\u0159\u00edpad\u011b osobn\u00edho certifik\u00e1tu \u2013 kontrola dokladu toto\u017enosti<\/li>\n<li><u>Ve\u0159ejn\u00fd kl\u00ed\u010d<\/u> \u2014 d\u00e9lka kl\u00ed\u010de obvykle 1024 bit\u016f<\/li>\n<li><u>Identifika\u010dn\u00ed \u00fadaje CA<\/u><\/li>\n<\/ol>\n<h3>Princip elektronick\u00e9ho podpisu<\/h3>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-124\" src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/princip-elektornickeho-podpisu.png\" alt=\"princip-elektornickeho-podpisu\" width=\"617\" height=\"256\" srcset=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/princip-elektornickeho-podpisu.png 617w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/princip-elektornickeho-podpisu-300x124.png 300w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/princip-elektornickeho-podpisu-50x21.png 50w\" sizes=\"(max-width: 617px) 100vw, 617px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3>Import certifik\u00e1tu do Outlooku 2016<\/h3>\n<ul>\n<li>Digit\u00e1ln\u00ed certifik\u00e1t = soubor s\u00a0p\u0159\u00edponou (*.pfx)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-19\" src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup1.png\" alt=\"postup1\" width=\"756\" height=\"703\" srcset=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup1.png 756w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup1-300x279.png 300w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup1-50x46.png 50w\" sizes=\"(max-width: 756px) 100vw, 756px\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-20\" src=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup2.png\" alt=\"postup2\" width=\"1111\" height=\"1238\" srcset=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup2.png 1111w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup2-269x300.png 269w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup2-768x856.png 768w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup2-919x1024.png 919w, https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-content\/uploads\/2016\/05\/postup2-45x50.png 45w\" sizes=\"(max-width: 1111px) 100vw, 1111px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>Odesl\u00e1n\u00ed elektronicky podepsan\u00e9ho emailu<\/h3>\n","protected":false},"excerpt":{"rendered":"<p>E-mailov\u00fd klient = po\u0161tovn\u00ed klient je po\u010d\u00edta\u010dov\u00fd program, kter\u00fd slou\u017e\u00ed k p\u0159ij\u00edm\u00e1n\u00ed, odes\u00edl\u00e1n\u00ed a spr\u00e1v\u011b elektronick\u00e9 po\u0161ty (e-mail\u016f) Po\u0161tu nej\u010dast\u011bji ukl\u00e1d\u00e1 na lok\u00e1ln\u00ed disk (C:) a zpr\u00e1vy a dal\u0161\u00ed informace si se serverem poskytovatele emailov\u00e9 schr\u00e1nky vym\u011b\u0148uje pomoc\u00ed internetov\u00fdch protokol\u016f umo\u017e\u0148uj\u00ed i spravovat kontakty (adres\u00e1\u0159) \u010di filtrovat nevy\u017e\u00e1danou po\u0161tu Funkce po\u0161tovn\u00edho klienta p\u0159ipojov\u00e1n\u00ed (!!!) k <a class=\"read-more\" href=\"https:\/\/www.ict.mazuch.net\/subdom\/ict\/5-klientske-aplikace-pro-email-a-web-6-elektronicky-podpis\/\">[&hellip;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"wppr_data":[],"_links":{"self":[{"href":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/pages\/16"}],"collection":[{"href":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/comments?post=16"}],"version-history":[{"count":7,"href":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/pages\/16\/revisions"}],"predecessor-version":[{"id":125,"href":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/pages\/16\/revisions\/125"}],"wp:attachment":[{"href":"https:\/\/www.ict.mazuch.net\/subdom\/ict\/wp-json\/wp\/v2\/media?parent=16"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}