{"id":97633,"date":"2020-10-20T02:42:47","date_gmt":"2020-10-20T00:42:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/private-psk-pre-shared-key-osobennosti-i-vozmozhnosti-platformy-extremecloud-iq"},"modified":"2020-10-20T02:42:47","modified_gmt":"2020-10-20T00:42:47","slug":"private-psk-pre-shared-key-osobennosti-i-vozmozhnosti-platformy-extremecloud-iq","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/private-psk-pre-shared-key-osobennosti-i-vozmozhnosti-platformy-extremecloud-iq","title":{"rendered":"Private PSK (Pre-Shared Key) \u2013 funktioner og muligheder p\u00e5 platformen ExtremeCloud IQ","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>WPA3 er nu vedtaget, og fra juli 2020 er det obligatorisk for enheder, der certificeres i WiFi-Alliancen. WPA2 er dog stadig i brug og vil ikke blive udfaset. B\u00e5de WPA2 og WPA3 underst\u00f8tter PSK- og Enterprise-tilstande, men vi vil i denne artikel fokusere p\u00e5 teknologien Private PSK samt de fordele, den kan give.<\/p>\n<p><img decoding=\"async\" alt=\"Private PSK (Pre-Shared Key) \u2013 funktioner og muligheder p\u00e5 platformen ExtremeCloud IQ\" src=\"\/wp-content\/uploads\/2020\/10\/098108c3884a2214168bd2d320d8e9f9.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nProblemerne med WPA2-Personal er velkendte og har i vid udstr\u00e6kning allerede v\u00e6ret l\u00f8st (Priority Management Frames, rettelser til KRACK-s\u00e5rbarheden osv.). Den st\u00f8rste tilbagev\u00e6rende ulempe ved WPA2 med PSK er, at svage adgangskoder let kan brydes med et ordbogsangreb. I tilf\u00e6lde af kompromittering og \u00e6ndring af adgangskoden til en ny, skal alle tilsluttede enheder (og adgangspunkter) rekonfigureres, hvilket kan v\u00e6re en besv\u00e6rlig proces. For at l\u00f8se problemet med<\/p>\n<p>svage adgangskoder<\/p>\n<p>anbefaler WiFi-Alliancen at bruge adgangskoder med en l\u00e6ngde p\u00e5 mindst 20 tegn.<\/p>\n<ul>\n<li>Et andet sp\u00f8rgsm\u00e5l, som nogle gange ikke kan l\u00f8ses med WPA2-Personal, er tildelingen af forskellige profiler (vlan, QoS, firewall\u2026) til grupper af enheder, der er tilsluttet det samme SSID.<\/li>\n<li>Med WPA2-Enterprise kan alle de n\u00e6vnte problemer l\u00f8ses, men prisen for dette vil v\u00e6re:<\/li>\n<li>Behovet for at have eller implementere PKI (Public Key Infrastructure) og sikkerhedscertifikater;<\/li>\n<li>Der kan opst\u00e5 problemer med installationen;<\/li>\n<\/ul>\n<p>\nDer kan v\u00e6re vanskeligheder med fejlfinding;<\/p>\n<p><img decoding=\"async\" alt=\"Private PSK (Pre-Shared Key) \u2013 funktioner og muligheder p\u00e5 platformen ExtremeCloud IQ\" src=\"\/wp-content\/uploads\/2020\/10\/6ea0cbf3ec9e5f2decef500cf9a04cd1.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nDet er ikke en optimal l\u00f8sning for IoT-enheder eller g\u00e6steadgang. En mere radikal l\u00f8sning p\u00e5 WPA2-Personal-problemerne er at skifte til WPA3, hvis prim\u00e6re forbedring er brugen af SAE (Simultaneous Authentication of Equals) og statiske PSK. WPA3-Personal l\u00f8ser problemet med \"ordbogsangreb\", men sikrer ikke unik identifikation ved autentificering og muligheden for at tildele profiler (da der stadig bruges en f\u00e6lles statisk adgangskode). Det er desuden vigtigt at huske, at mere end 95% af de eksisterende klienter i \u00f8jeblikket ikke underst\u00f8tter WPA3 og SAE, mens WPA2 fortsat fungerer p\u00e5 milliarder af allerede udgivne enheder.<\/p>\n<p>For the purpose of solving the described existing or potentially possible problems, Extreme Networks has developed Private Pre-Shared Key (PPSK) technology. PPSK is compatible with any Wi-Fi client that supports WPA2-PSK, providing a security level comparable to that achieved with WPA2-Enterprise, without the need for a 802.1X\/EAP infrastructure. Private PSK is essentially WPA2-PSK, but each user (or group of users) can have their own dynamically generated password. Managing PPSK is not different from managing PSK, as the entire process is automated. The database of keys can be stored locally on access points or in the cloud.<\/p>\n<p><img decoding=\"async\" alt=\"Private PSK (Pre-Shared Key) \u2013 funktioner og muligheder p\u00e5 platformen ExtremeCloud IQ\" src=\"\/wp-content\/uploads\/2020\/10\/878f418cf07e2ffd94d22cd5b42388fd.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nPasswords can be generated automatically, with the flexibility to set their length\/resilience, duration or expiration, and the method of delivery to users (via email or SMS):<\/p>\n<p><img decoding=\"async\" alt=\"Private PSK (Pre-Shared Key) \u2013 funktioner og muligheder p\u00e5 platformen ExtremeCloud IQ\" src=\"\/wp-content\/uploads\/2020\/10\/0ba90a70c476ab853bf564816c16f3cb.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n <img decoding=\"async\" alt=\"Private PSK (Pre-Shared Key) \u2013 funktioner og muligheder p\u00e5 platformen ExtremeCloud IQ\" src=\"\/wp-content\/uploads\/2020\/10\/c826ae0d8971d2e997ab8fd9d7c3f160.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nIt is also possible to set a maximum number of clients that can connect using a single PPSK or even configure 'MAC-binding' to connecting devices. Upon the network administrator's command, any key can be easily revoked, and access to the network will be denied without needing to reconfigure all other devices. If the client is connected at the time of key revocation, the access point will automatically disconnect them from the network.<\/p>\n<p>Key advantages of PPSK include:<\/p>\n<ul>\n<li>ease of use with a high level of security;<\/li>\n<li>dictionary attacks are mitigated by using long and resilient passwords that ExtremeCloudIQ can automatically generate and distribute;<\/li>\n<li>the ability to assign different security profiles to various devices connected to a single SSID;<\/li>\n<li>ideal for secure guest access;<\/li>\n<li>suitable for secure access when devices do not support 802.1X \/ EAP (manual scanners or IoT\/VoWiFi devices);<\/li>\n<li>successful use and improvement over more than 10 years.<\/li>\n<\/ul>\n<p>\nAny questions that arise or remain can always be directed to our office staff \u2013 <noindex><a rel=\"nofollow\" href=\"mailto:\/\/cis@extremenetworks.com\">cis@extremenetworks.com<\/a><\/noindex>.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/extremenetworks\/blog\/523890\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>WPA3 \u0443\u0436\u0435 \u043f\u0440\u0438\u043d\u044f\u0442, \u0438 \u0441 \u0438\u044e\u043b\u044f 2020 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u0435\u043d \u0434\u043b\u044f \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u0440\u043e\u0445\u043e\u0434\u044f\u0442 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u0432 WiFi-Alliance, WPA2 \u043d\u0438\u043a\u0442\u043e \u043d\u0435 \u043e\u0442\u043c\u0435\u043d\u044f\u043b \u0438 \u043d\u0435 \u0441\u043e\u0431\u0438\u0440\u0430\u0435\u0442\u0441\u044f. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c \u0438 WPA2, \u0438 WPA3 \u043f\u0440\u0435\u0434\u0443\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u044e\u0442 \u0440\u0430\u0431\u043e\u0442\u0443 \u0432 \u0440\u0435\u0436\u0438\u043c\u0430\u0445 PSK \u0438 Enterprise, \u043d\u043e \u043c\u044b \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u043c \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c \u0432 \u043d\u0430\u0448\u0435\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u044e Private PSK, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043c\u043e\u0436\u043d\u043e \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0441 \u0435\u0451 \u043f\u043e\u043c\u043e\u0449\u044c\u044e. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":97634,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-97633","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"WPA3 \u0443\u0436\u0435 \u043f\u0440\u0438\u043d\u044f\u0442, \u0438 \u0441 \u0438\u044e\u043b\u044f 2020 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u0435\u043d \u0434\u043b\u044f \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u0440\u043e\u0445\u043e\u0434\u044f\u0442 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u0432 WiFi-Alliance, WPA2 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