{"id":89121,"date":"2020-07-18T19:42:16","date_gmt":"2020-07-18T17:42:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/zashhita-dokumentov-ot-kopirovaniya"},"modified":"2020-07-18T19:42:16","modified_gmt":"2020-07-18T17:42:16","slug":"zashhita-dokumentov-ot-kopirovaniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/zashhita-dokumentov-ot-kopirovaniya","title":{"rendered":"Ochrana dokument\u016f p\u0159ed kop\u00edrov\u00e1n\u00edm","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Existuje tis\u00edc a jeden zp\u016fsob, jak chr\u00e1nit elektronick\u00e9 dokumenty p\u0159ed neopr\u00e1vn\u011bn\u00fdm kop\u00edrov\u00e1n\u00edm. Jakmile v\u0161ak dokument p\u0159ech\u00e1z\u00ed do analogov\u00e9ho stavu (podle GOST R 52292\u20132004<\/a><\/noindex> \u201eInforma\u010dn\u00ed technologie. Elektronick\u00e1 v\u00fdm\u011bna informac\u00ed. Term\u00edny a definice\u201c, pojem \u201eanalogov\u00fd dokument\u201c zahrnuje v\u0161echny tradi\u010dn\u00ed formy prezentace dokument\u016f na analogov\u00fdch nosi\u010d\u00edch: pap\u00ed\u0159e, fotografick\u00fdch a filmov\u00fdch p\u00e1sech atd. Analogov\u00e1 forma prezentace m\u016f\u017ee b\u00fdt p\u0159evedena na diskr\u00e9tn\u00ed (elektronickou) formu pomoc\u00ed r\u016fzn\u00fdch metod digitalizace<\/i>), po\u010det zp\u016fsob\u016f, jak jej chr\u00e1nit p\u0159ed kop\u00edrov\u00e1n\u00edm, se dramaticky sni\u017euje a n\u00e1klady na jejich praktickou implementaci tak\u00e9 rychle rostou. Nap\u0159\u00edklad, jak by to mohlo vypadat ve \u201espr\u00e1vn\u00e9\u201c firm\u011b:<\/p>\n

    \n
  1. Omezen\u00ed po\u010dtu m\u00edst a pou\u017eit\u00fdch technologi\u00ed p\u0159evodu elektronick\u00e9ho dokumentu na analogov\u00fd.<\/li>\n
  2. Omezen\u00ed po\u010dtu m\u00edst a okruhu osob, kter\u00e9 maj\u00ed povolen\u00ed se sezn\u00e1mit s obsahem analogov\u00fdch dokument\u016f.<\/li>\n
  3. Za\u0159\u00edzen\u00ed m\u00edst pro sezn\u00e1men\u00ed se s obsahem analogov\u00e9ho dokumentu prost\u0159edky videoz\u00e1znamu a vizu\u00e1ln\u00ed kontroly<\/li>\n
  4. atd.<\/li>\n<\/ol>\n

    \n\"Ochrana
    \n     <\/a><\/noindex>
    \nKrom\u011b vysok\u00fdch n\u00e1klad\u016f, pou\u017eit\u00ed takov\u00fdch zp\u016fsob\u016f katastrof\u00e1ln\u011b sni\u017euje efektivitu pr\u00e1ce s dokumenty.<\/p>\n

    Kompromisem m\u016f\u017ee b\u00fdt pou\u017eit\u00ed na\u0161eho produktu SafeCopy<\/a><\/noindex>.<\/p>\n

    Princip ochrany dokument\u016f<\/h2>\n

    \nS pomoc\u00ed SafeCopy se pro ka\u017ed\u00e9ho p\u0159\u00edjemce vyr\u00e1b\u00ed jedine\u010dn\u00e1 kopie dokumentu, do kter\u00e9 je pomoc\u00ed afinn\u00edch transformac\u00ed vlo\u017eeno skryt\u00e9 ozna\u010den\u00ed. P\u0159itom se mohou m\u00edrn\u011b m\u011bnit intervaly mezi \u0159\u00e1dky a znaky textu, sklon znak\u016f atd. Hlavn\u00ed v\u00fdhodou tohoto ozna\u010den\u00ed je, \u017ee jej nelze odstranit bez zm\u011bny obsahu dokumentu. Vodotisky se odstran\u00ed b\u011b\u017en\u00fdm Paintem, s afinn\u00edmi transformacemi toto \u010d\u00edslo neprojde. <\/p>\n

    \"Ochrana
    \n
    \nKopie jsou p\u0159ed\u00e1v\u00e1ny p\u0159\u00edjemc\u016fm v ti\u0161t\u011bn\u00e9 nebo v elektronick\u00e9 pdf podob\u011b. V p\u0159\u00edpad\u011b \u00faniku kopie lze spolehliv\u011b ur\u010dit jeho p\u0159\u00edjemce podle unik\u00e1tn\u00ed kombinace zkreslen\u00ed, kter\u00e1 je do ka\u017ed\u00e9 kopie vn\u00e1\u0161ena. Jeliko\u017e je ozna\u010dov\u00e1n cel\u00fd text, pro toto sta\u010d\u00ed doslova n\u011bkolik odstavc\u016f. Zbytek str\u00e1nky m\u016f\u017ee chyb\u011bt \/ b\u00fdt poma\u010dkan\u00fd \/ zakryt\u00fd dlan\u00ed \/ pol\u00edt k\u00e1vou (pot\u0159ebn\u00e9 zd\u016fraznit). Co v\u0161echno jsme u\u017e vid\u011bli.<\/p>\n

    K \u010demu se hod\u00ed ozna\u010den\u00ed?<\/h2>\n

    \nOchrana d\u016fv\u011brn\u00fdch dokument\u016f<\/b>. Sc\u00e9n\u00e1\u0159 byl pops\u00e1n v\u00fd\u0161e. Stru\u010dn\u011b \u0159e\u010deno: ozna\u010dili jsme kopie, p\u0159edali je p\u0159\u00edjemc\u016fm a bd\u00edme. Jakmile se kopie dokumentu \u201eobjev\u00ed na nepovolen\u00fdch m\u00edstech\u201c, porovn\u00e1me ji se v\u0161emi ozna\u010den\u00fdmi kopiemi a rychle ur\u010d\u00edme vlastn\u00edka \u201eobjeven\u00e9 kopie\u201c. <\/p>\n

    Abychom odhalili \u0161peha, postupn\u011b porovn\u00e1v\u00e1me \u201eobjevenou kopii\u201c s kopiemi ka\u017ed\u00e9ho p\u0159\u00edjemce dokumentu. Ten, u koho je procento shody pixel\u016f vy\u0161\u0161\u00ed, je \u0161peh. Rad\u011bji se ale pod\u00edvejte na obr\u00e1zek. <\/p>\n

    \"Ochrana
    \n
    \nPorovn\u00e1n\u00ed \u201eobjeven\u00e9 kopie\u201c se v\u0161emi ozna\u010den\u00fdmi se prov\u00e1d\u00ed automaticky, nikoli ru\u010dn\u011b. Ozna\u010den\u00e9 kopie se v syst\u00e9mu neukl\u00e1daj\u00ed, aby se zbyte\u010dn\u011b nehromadily gigabajty na disku. Syst\u00e9m uchov\u00e1v\u00e1 pouze soubor unik\u00e1tn\u00edch znak\u016f ozna\u010den\u00ed pro ka\u017ed\u00e9ho p\u0159\u00edjemce a generuje kopie okam\u017eit\u011b.<\/p>\n

    Ov\u011b\u0159en\u00ed pravosti dokument\u016f<\/b>. O metod\u00e1ch v\u00fdroby chr\u00e1n\u011bn\u00fdch ofsetov\u00fdch produkt\u016f si m\u016f\u017eete p\u0159e\u010d\u00edst na Wiki<\/a><\/noindex>. V podstat\u011b se to zpravidla shoduje s v\u00fdrobou formul\u00e1\u0159\u016f s r\u016fzn\u00fdmi druhy ozna\u010den\u00ed \u2013 vodotiskem, speci\u00e1ln\u00edmi inkousty atd. P\u0159\u00edklady takov\u00fdch produkt\u016f zahrnuj\u00ed bankovky, pojistn\u00e9 polisy, \u0159idi\u010dsk\u00e9 pr\u016fkazy, pasy atd. Takov\u00e9 produkty nelze vyrobit na b\u011b\u017en\u00e9 tisk\u00e1rn\u011b. Na n\u00ed v\u0161ak m\u016f\u017eete vytisknout dokument s afinn\u00edmi transformacemi textu. Co to p\u0159in\u00e1\u0161\u00ed?<\/p>\n

    Vyti\u0161t\u011bn\u00edm formul\u00e1\u0159e s nen\u00e1padn\u00fdm ozna\u010den\u00edm textu m\u016f\u017eete ov\u011b\u0159it jeho pravost pouze podle p\u0159\u00edtomnosti ozna\u010den\u00ed. T\u00edmto zp\u016fsobem umo\u017e\u0148uje unik\u00e1tnost ozna\u010den\u00ed nejen ov\u011b\u0159it pravost, ale tak\u00e9 ur\u010dit konkr\u00e9tn\u00ed fyzickou nebo pr\u00e1vnickou osobu, kter\u00e1 obdr\u017eela formul\u00e1\u0159. Pokud ozna\u010den\u00ed chyb\u00ed nebo ukazuje na jin\u00e9ho p\u0159\u00edjemce, je formul\u00e1\u0159 fale\u0161n\u00fd.<\/p>\n

    Takov\u00e9 ozna\u010den\u00ed m\u016f\u017ee b\u00fdt pou\u017eito jak samostatn\u011b, nap\u0159\u00edklad pro formul\u00e1\u0159e s p\u0159\u00edsnou odpov\u011bdnost\u00ed, tak v kombinaci s jin\u00fdmi metodami ochrany, nap\u0159\u00edklad pro zabezpe\u010den\u00ed pas\u016f.<\/p>\n

    Odpov\u011bdnost poru\u0161ovatel\u016f<\/b>. Velk\u00e9 \u00faniky stoj\u00ed firmy velk\u00e9 pen\u00edze. Aby trest\u00e1n\u00ed poru\u0161itele nebylo omezeno pouze na napomenut\u00ed, je nutn\u00e9 jej p\u0159iv\u00e9st k odpov\u011bdnosti p\u0159ed soudem. Patentovali jsme sv\u016fj zp\u016fsob ochrany dokument\u016f, aby v\u00fdsledky SafeCopy byly v soud\u011b p\u0159ij\u00edm\u00e1ny jako d\u016fkazy.<\/p>\n

    Co ozna\u010den\u00ed nem\u016f\u017ee?<\/h2>\n

    \nOzna\u010dov\u00e1n\u00ed nen\u00ed v\u0161el\u00e9k v boji proti \u00fanik\u016fm dat a ochran\u011b kopi\u00ed dokument\u016f. P\u0159i jeho zav\u00e1d\u011bn\u00ed ve va\u0161em podniku je d\u016fle\u017eit\u00e9 pochopit t\u0159i kl\u00ed\u010dov\u00e1 omezen\u00ed:<\/p>\n

    Ozna\u010dov\u00e1n\u00ed chr\u00e1n\u00ed dokument, nikoli jeho text<\/b>. Text si lze zapamatovat a p\u0159evypr\u00e1v\u011bt. Text z ozna\u010den\u00e9 kopie lze p\u0159epsat a odeslat v messengeru. Proti t\u011bmto hrozb\u00e1m v\u00e1s nic neochr\u00e1n\u00ed. Zde je d\u016fle\u017eit\u00e9 pochopit, \u017ee ve sv\u011bt\u011b totalitn\u00edho fakeu \u00fanik jen \u010d\u00e1sti textu dokumentu \u2013 to nejsou nic v\u00edc ne\u017e elektronick\u00e9 drby. Aby \u00fanik m\u011bl hodnotu, mus\u00ed obsahovat \u00fadaje pro ov\u011b\u0159en\u00ed autenticity unikaj\u00edc\u00ed informace \u2013 raz\u00edtka, podpisy atd. A zde bude ozna\u010dov\u00e1n\u00ed u\u017eite\u010dn\u00e9.<\/p>\n

    Ozna\u010dov\u00e1n\u00ed nezakazuje kop\u00edrov\u00e1n\u00ed a fotografov\u00e1n\u00ed exempl\u00e1\u0159\u016f dokumentu<\/b>. Ale pokud se skeny nebo fotky dokument\u016f \"vyno\u0159\u00ed\", pom\u016f\u017ee to p\u0159i hled\u00e1n\u00ed pachatele. V podstat\u011b je ochrana kopi\u00ed preventivn\u00ed. Zam\u011bstnanci v\u011bd\u00ed, \u017ee d\u00edky fotografi\u00edm a kopi\u00edm dokument\u016f je lze bezpodm\u00edne\u010dn\u011b ur\u010dit a potrestat, a bu\u010f hledaj\u00ed jin\u00e9 (pracn\u011bj\u0161\u00ed) zp\u016fsoby \u201e\u00faniku\u201c, nebo se mu zcela vzd\u00e1vaj\u00ed. <\/p>\n

    Ozna\u010dov\u00e1n\u00ed ur\u010duje, \u010d\u00ed kopie unikla, nikoli toho, kdo ji unikl<\/b>. P\u0159\u00edklad ze \u017eivota \u2013 dokument unikl. Ozna\u010dov\u00e1n\u00ed uk\u00e1zalo, \u017ee unikla kopie Ivana Ne\u00fasp\u011b\u0161n\u00e9ho (jm\u00e9no a p\u0159\u00edjmen\u00ed byla zm\u011bn\u011bna). Bezpe\u010dnostn\u00ed slu\u017eba zah\u00e1jila vy\u0161et\u0159ov\u00e1n\u00ed a zjistila, \u017ee Ivan nechal dokument na stole ve sv\u00e9 kancel\u00e1\u0159i, kde ho vyfotografoval pachatel. Ivan dostal pok\u00e1r\u00e1n\u00ed, bezpe\u010dnostn\u00ed slu\u017eb\u011b se nasadila detektivn\u00ed \u00faloha naj\u00edt vin\u00edky mezi lidmi, kte\u0159\u00ed nav\u0161t\u00edvili kancel\u00e1\u0159 Ne\u00fasp\u011b\u0161n\u00e9ho. Takov\u00fd \u00fakol nen\u00ed jednoduch\u00fd, ale je snaz\u0161\u00ed ne\u017e hledat mezi lidmi, kte\u0159\u00ed nav\u0161t\u00edvili kancel\u00e1\u0159e v\u0161ech p\u0159\u00edjemc\u016f dokumentu.<\/p>\n

    M\u00edchat, ale ne t\u0159epat<\/h2>\n

    \nPokud syst\u00e9m ozna\u010dov\u00e1n\u00ed neintegrujete s ostatn\u00edmi korpor\u00e1tn\u00edmi syst\u00e9my, prostor jeho pou\u017eit\u00ed bude pravd\u011bpodobn\u011b omezen pouze na pap\u00edrovou dokumentaci, kter\u00e9 s roky ub\u00fdv\u00e1. A i v tomto p\u0159\u00edpad\u011b pou\u017eit\u00ed ozna\u010dov\u00e1n\u00ed st\u011b\u017e\u00ed lze nazvat pohodln\u00fdm \u2013 bude nutn\u00e9 ru\u010dn\u011b nahr\u00e1vat ka\u017ed\u00fd dokument a vyr\u00e1b\u011bt pro n\u011bj kopie.<\/p>\n

    Ale pokud ud\u011bl\u00e1te syst\u00e9m ozna\u010dov\u00e1n\u00ed sou\u010d\u00e1st\u00ed celkov\u00e9ho IT a bezpe\u010dnostn\u00edho prost\u0159ed\u00ed, bude patrn\u00fd synergick\u00fd efekt. Nejsou u\u017eite\u010dn\u00e9 n\u00e1sleduj\u00edc\u00ed integrace:<\/p>\n

    Integrace s EDRM<\/b>. V SED se vy\u010dle\u0148uje podmno\u017eina dokument\u016f, kter\u00e9 vy\u017eaduj\u00ed ozna\u010den\u00ed. Ka\u017ed\u00fdkr\u00e1t, kdy\u017e nov\u00e9ho u\u017eivatele po\u017e\u00e1d\u00e1 o takov\u00fd dokument ze SED, dostane jeho ozna\u010denou kopii.<\/p>\n

    Integrace se syst\u00e9my \u0159\u00edzen\u00ed tisku<\/b>. Syst\u00e9my \u0159\u00edzen\u00ed tisku funguj\u00ed jako proxy mezi po\u010d\u00edta\u010di u\u017eivatel\u016f a tisk\u00e1rnami v organizaci. Mohou ur\u010dit, \u017ee dokument odeslan\u00fd k tisku vy\u017eaduje ozna\u010den\u00ed, nap\u0159\u00edklad na z\u00e1klad\u011b p\u0159\u00edtomnosti \u0161t\u00edtku d\u016fv\u011brnosti v atributech souboru nebo na z\u00e1klad\u011b p\u0159\u00edtomnosti souboru v podnikov\u00e9m \u00falo\u017ei\u0161ti d\u016fv\u011brn\u00fdch dokument\u016f. V takov\u00e9m p\u0159\u00edpad\u011b u\u017eivatel, kter\u00fd dokument odeslal k tisku, dostane z tiskov\u00e9ho z\u00e1sobn\u00edku jeho ozna\u010denou kopii. V jednodu\u0161\u0161\u00edm sc\u00e9n\u00e1\u0159i lze vytvo\u0159it samostatn\u00e9ho virtu\u00e1ln\u00edho tisk\u00e1rnu, na kterou odes\u00edl\u00e1n\u00ed dokument\u016f bude vych\u00e1zet ozna\u010den\u00e9 kopie. <\/p>\n

    Integrace s elektronikou po\u0161tou<\/b>. V mnoha organizac\u00edch nen\u00ed povoleno pou\u017e\u00edvat elektronickou po\u0161tu k rozes\u00edl\u00e1n\u00ed d\u016fv\u011brn\u00fdch dokument\u016f, ale tato omezen\u00ed jsou \u010dasto poru\u0161ov\u00e1na. N\u011bkde na z\u00e1klad\u011b lajd\u00e1ckosti, jinde kv\u016fli st\u00edsn\u011bn\u00fdm term\u00edn\u016fm nebo p\u0159\u00edm\u00fdm instrukc\u00edm veden\u00ed. Aby informa\u010dn\u00ed bezpe\u010dnost nebyla p\u0159ek\u00e1\u017ekou pokroku a p\u0159in\u00e1\u0161ela firm\u011b zisk, navrhujeme realizaci n\u00e1sleduj\u00edc\u00edho sc\u00e9n\u00e1\u0159e, kter\u00fd umo\u017e\u0148uje bezpe\u010dn\u00e9 rozes\u00edl\u00e1n\u00ed vnit\u0159n\u00ed po\u0161tou a \u0161et\u0159en\u00ed na zas\u00edl\u00e1n\u00ed dokument\u016f p\u0159es kur\u00fdra.<\/p>\n

    P\u0159i odes\u00edl\u00e1n\u00ed dokumentu u\u017eivatel p\u0159id\u00e1v\u00e1 ozna\u010den\u00ed pot\u0159ebn\u00e9ho ozna\u010den\u00ed. V na\u0161em p\u0159\u00edpad\u011b - pracovn\u00ed e-mailovou adresu. Po\u0161tovn\u00ed server, p\u0159ij\u00edmaj\u00edc\u00ed zpr\u00e1vu s t\u00edmto ozna\u010den\u00edm, vytv\u00e1\u0159\u00ed pro ka\u017ed\u00e9ho p\u0159\u00edjemce kopie v\u0161ech p\u0159\u00edloh a rozes\u00edl\u00e1 je m\u00edsto p\u016fvodn\u00edch p\u0159\u00edloh. K tomu je na po\u0161tovn\u00edm serveru nainstalov\u00e1n komponent syst\u00e9mu ozna\u010dov\u00e1n\u00ed. V p\u0159\u00edpad\u011b Microsoft Exchange hraje roli tzv. transportn\u00edho agenta. Pr\u00e1ci po\u0161tovn\u00edho serveru tento komponent nebr\u00e1n\u00ed.
    \n
    Zdroj:     habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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