Hva gj\u00f8r et tidsstempel?<\/strong><\/p>\n\n\n\nSertifikater for e-signaturer har en utl\u00f8psdato og er gyldige i en viss tid, for eksempel to eller tre \u00e5r. Det inneb\u00e6rer at du etter utl\u00f8psdatoen ikke kan signere flere dokumenter, og at signaturer som du allerede har opprettet uten tidsstempel, ikke er gyldige lenger. Det virker ganske enkelt og greit, ikke sant? Vi kan illustrere det med et eksempel.<\/p>\n\n\n\n
La oss si at sertifikatet ditt for e-signaturer utl\u00f8per i morgen. Du signerer et dokument i dag. Hva skjer hvis noen i morgen ber om dokumentasjon \u2013 hvordan kan du bevise at dokumentet er gyldig? Hvordan kan du bevise at du signerte det i g\u00e5r, og ikke i dag n\u00e5r sertifikatet allerede har utl\u00f8pt? Det er her tidsstempelet kommer inn i bildet. Det brukes til \u00e5 registrere data i signaturen for \u00e5 bevise at den ble opprettet p\u00e5 et tidspunkt da sertifikatet fremdeles var gyldig. Hvis det ikke finnes noe tidsstempel, er det umulig \u00e5 vite n\u00e5r signaturen ble opprettet. Man m\u00e5 g\u00e5 ut fra at den kan ha blitt laget n\u00e5r som helst, kanskje etter at sertifikatet utl\u00f8p eller ble tilbakekalt.<\/p>\n\n\n\n
Tidsstempler brukes ganske enkelt til \u00e5 angi tidspunktet for opprettelse av signaturen. Et tidsstempel er den eneste metoden for \u00e5 bevise at en signatur ble opprettet mens sertifikatet fremdeles var gyldig.<\/p>\n\n\n\n
Tidsstempel i eIDAS-forordningen<\/strong><\/p>\n\n\n\nI teknisk forstand definerer eIDAS-forordningen et elektronisk tidsstempel som \u00abdata i elektronisk form som knytter andre data i elektronisk form til et bestemt tidspunkt og dermed dokumenterer at sistnevnte data eksisterte p\u00e5 det gjeldende tidspunktet\u00bb.<\/p>\n\n\n\n
Et elektronisk tidsstempel er kvalifisert n\u00e5r det binder dato og klokkeslett til data slik at de ikke kan endres uten at det oppdages, har en n\u00f8yaktig tidskilde og bruker en avansert elektronisk signatur eller et avansert elektronisk segl fra en kvalifisert leverand\u00f8r av tillitstjenester.<\/p>\n\n\n\n
I likhet med en elektronisk signatur skal ikke rettsvirkningen til et elektronisk tidsstempel bestrides bare fordi det er i elektronisk form. Et kvalifisert tidsstempel utstedt innenfor E\u00d8S-omr\u00e5det er i utgangspunktet anerkjent og gyldig i hele E\u00d8S-omr\u00e5det.<\/p>\n","protected":false},"excerpt":{"rendered":"
Du har sikkert h\u00f8rt snakk om tidsstempler, men har du noen gang satt deg n\u00e6rmere inn dem \u2013 eller lurt p\u00e5 hva de er, og hvorfor de er n\u00f8dvendige? Her er en kort innf\u00f8ring i temaet.<\/p>\n","protected":false},"author":6,"featured_media":5493,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"class_list":["post-5492","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kunnskapsknutepunkt"],"yoast_head":"\n
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