{"id":121,"date":"2009-01-27T02:02:04","date_gmt":"2009-01-27T00:02:04","guid":{"rendered":"http:\/\/blogs.igalia.com\/berto\/2009\/01\/27\/git-and-the-security-of-sha-1\/"},"modified":"2009-01-27T02:02:04","modified_gmt":"2009-01-27T00:02:04","slug":"git-and-the-security-of-sha-1","status":"publish","type":"post","link":"https:\/\/blogs.igalia.com\/berto\/2009\/01\/27\/git-and-the-security-of-sha-1\/","title":{"rendered":"Git and the security of SHA-1"},"content":{"rendered":"<p>I&#8217;ve heard quite a few times about how Git would be broken if someone found an easy way to create SHA-1 collisions.<\/p>\n<p>A few years ago, after <a href=\"http:\/\/www.schneier.com\/blog\/archives\/2005\/08\/new_cryptanalyt.html\">some attacks against SHA-1<\/a> were published, Linus explained that the security model of Git <em>doesn&#8217;t depend<\/em> on the hashes being cryptographically secure (although he said that it was a bonus and also mentioned a few possible problems).<\/p>\n<p>There was an interesting thread in the Git mailing list about this topic: <a href=\"http:\/\/kerneltrap.org\/mailarchive\/git\/2006\/8\/27\/211001\">Starting to think about sha-256?<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ve heard quite a few times about how Git would be broken if someone found an easy way to create SHA-1 collisions. A few years ago, after some attacks against SHA-1 were published, Linus explained that the security model of Git doesn&#8217;t depend on the hashes being cryptographically secure (although he said that it was [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,8,9,10,12],"tags":[],"class_list":["post-121","post","type-post","status-publish","format-standard","hentry","category-english","category-gnome","category-gpul","category-igalia","category-free-software"],"_links":{"self":[{"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/posts\/121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/comments?post=121"}],"version-history":[{"count":0,"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/posts\/121\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/media?parent=121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/categories?post=121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.igalia.com\/berto\/wp-json\/wp\/v2\/tags?post=121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}