{"id":276,"date":"2014-08-01T14:54:37","date_gmt":"2014-08-01T11:54:37","guid":{"rendered":"http:\/\/catalin.francu.com\/blog\/?p=276"},"modified":"2014-08-01T14:54:37","modified_gmt":"2014-08-01T11:54:37","slug":"confidentialitatea-e-mailului","status":"publish","type":"post","link":"https:\/\/catalin.francu.com\/blog\/2014\/08\/confidentialitatea-e-mailului\/","title":{"rendered":"Confiden\u021bialitatea e-mailului"},"content":{"rendered":"

Dezv\u0103luirile despre supravegherea \u00een mas\u0103 f\u0103cute de Snowden de acum un an au\u00a0avut efecte amestecate. Sunt mul\u021bi cei c\u0103rora nu le pas\u0103 c\u0103 toate comunica\u021biile lor sunt captate \u0219i stocate pe termen nelimitat, la \u00eendem\u00e2na guvernelor existente \u0219i a celor ce vor urma, de orice fel ar fi ele. Dar exist\u0103m \u0219i cei c\u0103rora dezv\u0103luirile ne-au ar\u0103tat c\u0103 trebuie s\u0103 ne ocup\u0103m activ de confiden\u021bialitatea comunic\u0103rilor noastre digitale, c\u0103 nu putem s\u0103 ne \u00eencredem pentru aceasta \u00een companii private sau \u00een guverne.<\/p>\n

Pentru mine, primul pe list\u0103 este e-mailul (po\u0219ta electronic\u0103). Urmeaz\u0103, mult \u00een spate, re\u021belele sociale, SMS-urile \u0219i convorbirile pe mobil. Dar cine are acces la e-mailul meu poate citi toat\u0103 via\u021ba mea ca \u00eentr-o carte deschis\u0103.<\/p>\n

Securizarea e-mailului este o problem\u0103 u\u0219oar\u0103 din punct de vedere tehnic. Funda\u021bia pentru Software Liber a publicat un ghid\u00a0intitulat Autoap\u0103rarea pe e-mail<\/a> \u00een care arat\u0103, pas cu pas, cum poate fi folosit Thunderbird pentru a avea coresponden\u021b\u0103 criptat\u0103. Exist\u0103 \u0219i o traducere \u00een limba rom\u00e2n\u0103<\/a>, la care am fost onorat s\u0103 particip. Ghiduri similare exist\u0103 \u0219i pentru alte\u00a0programe \u0219i site-uri de e-mail.<\/p>\n

Securitatea po\u0219tei electronice are dou\u0103 fa\u021bete:<\/p>\n

    \n
  1. Semn\u0103turile electronice,<\/strong> prin care eu pot dovedi c\u0103 sunt (sau nu) autorul unor mesaje transmise \u00een numele meu.<\/li>\n
  2. Criptarea mesajelor,<\/strong> care garanteaz\u0103 c\u0103\u00a0doar persoana c\u0103reia \u00eei adresez un mesaj \u00eel poate citi.<\/li>\n<\/ol>\n

    Primul pas este u\u0219or de implementat \u0219i eu l-am adoptat din iunie 2014. Mesajele pe care le trimit vin cu o semn\u0103tur\u0103 electronic\u0103 ata\u0219at\u0103 \u0219i oricine (dac\u0103 \u00ee\u0219i instaleaz\u0103 un pachet de criptografie) poate da click pe acea semn\u0103tur\u0103 ca s\u0103 se conving\u0103 c\u0103 mesajul este autentic \u0219i nu vine de la cineva care se d\u0103 drept mine.<\/p>\n

    Dar confiden\u021bialitatea coresponden\u021bei exist\u0103 cu adev\u0103rat numai c\u00e2nd implementez \u0219i pasul al doilea, criptarea. Iar aceasta nu este o activitate pe care o pot face eu de unul singur. Trebuie ca persoana c\u0103reia m\u0103 adresez s\u0103 aib\u0103 pachetul de criptografie instalat, s\u0103 \u00ee\u0219i genereze o cheie de criptare \u0219i s\u0103 o publice; cu alte cuvinte, destinatarul trebuie s\u0103 fie \u0219i el un utilizator activ al cript\u0103rii. De aceea, criptarea e-mailurilor presupune o mas\u0103 critic\u0103 de utilizatori.<\/p>\n

    V\u0103 \u00eencurajez pe to\u021bi s\u0103 adopta\u021bi acest sistem. Dup\u0103 o instalare care dureaz\u0103 15-30 de minute, sistemul este complet transparent. Mesajele vor ar\u0103ta exact ca de obicei, dar nimeni de pe lan\u021bul de calculatoare dintre voi \u0219i coresponden\u021bii vo\u0219tri nu le vor putea descifra.<\/p>\n

    Este important s\u0103 ajungem c\u00e2t mai repede la acea mas\u0103 critic\u0103 de\u00a0oameni care adopt\u0103 criptarea. Dac\u0103 doar oamenii care au ceva secret de spus folosesc criptarea, ei vor deveni \u021binte evidente pentru guvernele care ne spioneaz\u0103. Aceste guverne au la dispozi\u021bie suficient\u0103 putere de calcul pentru a sparge criptarea unei chei, a unei persoane. Dac\u0103, \u00eens\u0103, cu to\u021bii ne vom face un obicei din criptarea mesajelor, guvernele care ne spioneaz\u0103 (da, inclusiv cel rom\u00e2n<\/a>) nu vor \u0219ti cu cine s\u0103 \u00eenceap\u0103.<\/p>\n

    Tr\u0103im \u00eentr-o lume care \u00eencearc\u0103 s\u0103 previn\u0103 ca dezv\u0103luiri revolt\u0103toare ca ale lui Julian Assange sau Edward Snowden s\u0103 mai vad\u0103 vreodat\u0103 lumina zilei. Depinde de noi ca, prin num\u0103rul nostru, s\u0103 protej\u0103m secretul coresponden\u021bei \u00eentre ace\u0219ti oameni \u0219i alia\u021bii lor din jurnalism, ca \u0219i dintre oricare al\u021bi locuitori ai planetei.<\/p>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    Dezv\u0103luirile despre supravegherea \u00een mas\u0103 f\u0103cute de Snowden de acum un an au\u00a0avut efecte amestecate. Sunt mul\u021bi cei c\u0103rora nu le pas\u0103 c\u0103 toate comunica\u021biile lor sunt captate \u0219i stocate pe termen nelimitat, la \u00eendem\u00e2na guvernelor existente \u0219i a celor ce vor urma, de orice fel ar fi ele. Dar exist\u0103m \u0219i cei c\u0103rora dezv\u0103luirile […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-276","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/posts\/276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/comments?post=276"}],"version-history":[{"count":1,"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/posts\/276\/revisions"}],"predecessor-version":[{"id":277,"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/posts\/276\/revisions\/277"}],"wp:attachment":[{"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/media?parent=276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/categories?post=276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/catalin.francu.com\/blog\/wp-json\/wp\/v2\/tags?post=276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}