{"id":25206,"date":"2026-05-05T08:51:18","date_gmt":"2026-05-05T07:51:18","guid":{"rendered":"https:\/\/www.oderland.se\/support\/?post_type=ht_kb&#038;p=25206"},"modified":"2026-05-05T08:52:12","modified_gmt":"2026-05-05T07:52:12","slug":"jag-far-en-varning-om-post-quantum-key-algorithm-nar-jag-ansluter-via-ssh-vad-gor-jag","status":"publish","type":"ht_kb","link":"https:\/\/www.oderland.se\/support\/artikel\/jag-far-en-varning-om-post-quantum-key-algorithm-nar-jag-ansluter-via-ssh-vad-gor-jag\/","title":{"rendered":"Jag f\u00e5r en varning om post-quantum key algorithm n\u00e4r jag ansluter via SSH, vad g\u00f6r jag?"},"content":{"rendered":"\n<p>N\u00e4r du ansluter till en server kan det h\u00e4nda att du f\u00e5r upp en varning i din terminal likt f\u00f6ljande:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\" style=\"font-size:12px\">** WARNING: connection is not using a post-quantum key exchange algorithm.<br>** This session may be vulnerable to \"store now, decrypt later\" attacks.<br>** The server may need to be upgraded. See https:\/\/openssh.com\/pq.html<\/pre>\n\n\n\n<p>Varningen kommer sig av att servern k\u00f6r en OpenSSH-version som inte har st\u00f6d f\u00f6r de post-quantum-algoritmer OpenSSH rekommenderar. St\u00f6d f\u00f6r algoritmerna finns i nyare versioner av OpenSSH, som i sin tur inte st\u00f6ds av serverns operativsystem \u00e4nnu. En framtida uppgradering av operativsystemet kommer att ha st\u00f6d f\u00f6r den version av OpenSSH som kr\u00e4vs f\u00f6r denna typ av algoritm.<\/p>\n\n\n\n<p class=\"wp-block-ht-blocks-messages wp-block-hb-message wp-block-hb-message--withicon is-style-info\">Detta inneb\u00e4r <em>inte<\/em> att vi k\u00f6r med os\u00e4kra OpenSSH-versioner p\u00e5 v\u00e5ra servrar, n\u00e5got vi skriver mer om <a href=\"https:\/\/www.oderland.se\/support\/artikel\/en-sakerhetsgenomsokning-av-servern-sager-att-openssh-ar-osaker-vad-gor-jag\/\" target=\"_blank\" rel=\"noreferrer noopener\">h\u00e4r<\/a>.<\/p>\n\n\n\n<p>Fr\u00e5nvaron av post-quantum-algoritmer \u00e4r dock inte ett problem i nul\u00e4get d\u00e5 kvantdatorer \u00e4nnu inte f\u00f6rekommer i n\u00e5gon betydande utstr\u00e4ckning. I praktiken inneb\u00e4r detta att innan kvantdatorer h\u00f6r till vardagen kommer vi ha migrerat till nyare versioner av OpenSSH som har st\u00f6d f\u00f6r de s\u00e4krare algoritmerna.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u00e4r du ansluter till en server kan det h\u00e4nda att du f\u00e5r upp en varning i din terminal likt f\u00f6ljande: ** WARNING: connection is not using a post-quantum key exchange algorithm.** This session may be vulnerable to &#8221;store now, decrypt later&#8221; attacks.** The server may need to be upgraded. See&#8230;<\/p>\n","protected":false},"author":12,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"ht-kb-category":[125],"ht-kb-tag":[],"class_list":["post-25206","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-sakerhet"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/ht-kb\/25206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/comments?post=25206"}],"version-history":[{"count":3,"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/ht-kb\/25206\/revisions"}],"predecessor-version":[{"id":25209,"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/ht-kb\/25206\/revisions\/25209"}],"wp:attachment":[{"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/media?parent=25206"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/ht-kb-category?post=25206"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/www.oderland.se\/support\/wp-json\/wp\/v2\/ht-kb-tag?post=25206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}