{"id":3,"date":"2007-11-28T23:32:20","date_gmt":"2007-11-28T23:32:20","guid":{"rendered":"http:\/\/www.eriugena.org\/blog\/?p=3"},"modified":"2007-12-01T00:52:12","modified_gmt":"2007-12-01T00:52:12","slug":"efs-is-almost-useful","status":"publish","type":"post","link":"http:\/\/www.eriugena.org\/blog\/?p=3","title":{"rendered":"EFS is almost useful"},"content":{"rendered":"<p>If a student had turned in the <a href=\"http:\/\/en.wikipedia.org\/wiki\/Encrypting_File_System\" target=\"_blank\">EFS<\/a> design as a project I may have given them a C+ or B-. It has all the hallmarks of good encryption design that was then taken by a committee and developed into a product. I wrote <a href=\"http:\/\/www.eriugena.org\/code\/sendto\/\" target=\"_blank\">this<\/a> little program to solve the problem of how to copy EFS encrypted files to a USB key drive. If you just drag the files to the USB drive then Windows &#8216;helpfully&#8217; decrypts them for you without asking. In any serious encryption system the default should be to *not* decrypt data without explicit permission, sigh!<\/p>\n<p>Copy &#8220;sendtoEFS.exe&#8221; into the &#8220;sendto&#8221; folder in your Windows profile so that it can be used from the Explorer menu. It uses the Windows API call &#8220;OpenEncryptedFileRaw&#8221; to access the raw encrypted data and not transparently decrypt it; the PDF file explains.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If a student had turned in the EFS design as a project I may have given them a C+ or B-. It has all the hallmarks of good encryption design that was then taken by a committee and developed into a product. I wrote this little program to solve the problem of how to copy [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-3","post","type-post","status-publish","format-standard","hentry","category-crypto"],"_links":{"self":[{"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3"}],"version-history":[{"count":0,"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.eriugena.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}