{"action":"closed","issue":{"url":"https://api.github.com/repos/owncloud/client/issues/2542","labels_url":"https://api.github.com/repos/owncloud/client/issues/2542/labels{/name}","comments_url":"https://api.github.com/repos/owncloud/client/issues/2542/comments","events_url":"https://api.github.com/repos/owncloud/client/issues/2542/events","html_url":"https://github.com/owncloud/client/issues/2542","id":50035089,"number":2542,"title":"Checksums to Verify Up- and Download","user":{"login":"dragotin","id":1070214,"avatar_url":"https://avatars.githubusercontent.com/u/1070214?v=3","gravatar_id":"","url":"https://api.github.com/users/dragotin","html_url":"https://github.com/dragotin","followers_url":"https://api.github.com/users/dragotin/followers","following_url":"https://api.github.com/users/dragotin/following{/other_user}","gists_url":"https://api.github.com/users/dragotin/gists{/gist_id}","starred_url":"https://api.github.com/users/dragotin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dragotin/subscriptions","organizations_url":"https://api.github.com/users/dragotin/orgs","repos_url":"https://api.github.com/users/dragotin/repos","events_url":"https://api.github.com/users/dragotin/events{/privacy}","received_events_url":"https://api.github.com/users/dragotin/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/owncloud/client/labels/Enhancement","name":"Enhancement","color":"84b6eb"}],"state":"closed","locked":false,"assignee":{"login":"dragotin","id":1070214,"avatar_url":"https://avatars.githubusercontent.com/u/1070214?v=3","gravatar_id":"","url":"https://api.github.com/users/dragotin","html_url":"https://github.com/dragotin","followers_url":"https://api.github.com/users/dragotin/followers","following_url":"https://api.github.com/users/dragotin/following{/other_user}","gists_url":"https://api.github.com/users/dragotin/gists{/gist_id}","starred_url":"https://api.github.com/users/dragotin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dragotin/subscriptions","organizations_url":"https://api.github.com/users/dragotin/orgs","repos_url":"https://api.github.com/users/dragotin/repos","events_url":"https://api.github.com/users/dragotin/events{/privacy}","received_events_url":"https://api.github.com/users/dragotin/received_events","type":"User","site_admin":false},"milestone":null,"comments":11,"created_at":"2014-11-25T14:47:04Z","updated_at":"2015-12-07T12:55:00Z","closed_at":"2015-12-07T12:55:00Z","body":"Some storage backends support hash sums of files. These could be used to ensure the files integrity when up- or downloaded between sync client and server. This adds another level of security.\r\n\r\nThe basic idea is to add a hashsum as HTTP header to GET or PUT and compare on the other communication side. If the numbers do not match, the transmission has to be an error.\r\n\r\n@moscicki has drafted a specification: https://github.com/cernbox/smashbox/blob/master/protocol/checksum.md as discussed on a meeting with @DeepDiver1975 and @dragotin.\r\n\r\nTracked in core repo owncloud/core#12417\r\n"}}