{"action":"created","issue":{"url":"https://api.github.com/repos/mitchellh/packer/issues/4076","repository_url":"https://api.github.com/repos/mitchellh/packer","labels_url":"https://api.github.com/repos/mitchellh/packer/issues/4076/labels{/name}","comments_url":"https://api.github.com/repos/mitchellh/packer/issues/4076/comments","events_url":"https://api.github.com/repos/mitchellh/packer/issues/4076/events","html_url":"https://github.com/mitchellh/packer/issues/4076","id":185581873,"number":4076,"title":"Support for openssh.com HMAC/UMAC algorithms for SSH","user":{"login":"MiLk","id":29782,"avatar_url":"https://avatars.githubusercontent.com/u/29782?v=3","gravatar_id":"","url":"https://api.github.com/users/MiLk","html_url":"https://github.com/MiLk","followers_url":"https://api.github.com/users/MiLk/followers","following_url":"https://api.github.com/users/MiLk/following{/other_user}","gists_url":"https://api.github.com/users/MiLk/gists{/gist_id}","starred_url":"https://api.github.com/users/MiLk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MiLk/subscriptions","organizations_url":"https://api.github.com/users/MiLk/orgs","repos_url":"https://api.github.com/users/MiLk/repos","events_url":"https://api.github.com/users/MiLk/events{/privacy}","received_events_url":"https://api.github.com/users/MiLk/received_events","type":"User","site_admin":false},"labels":[{"id":242561672,"url":"https://api.github.com/repos/mitchellh/packer/labels/+1","name":"+1","color":"009800","default":false},{"id":337722134,"url":"https://api.github.com/repos/mitchellh/packer/labels/communicator/ssh","name":"communicator/ssh","color":"006b75","default":false},{"id":180552154,"url":"https://api.github.com/repos/mitchellh/packer/labels/upstream-bug","name":"upstream-bug","color":"fad8c7","default":false}],"state":"open","locked":false,"assignee":{"login":"rickard-von-essen","id":557699,"avatar_url":"https://avatars.githubusercontent.com/u/557699?v=3","gravatar_id":"","url":"https://api.github.com/users/rickard-von-essen","html_url":"https://github.com/rickard-von-essen","followers_url":"https://api.github.com/users/rickard-von-essen/followers","following_url":"https://api.github.com/users/rickard-von-essen/following{/other_user}","gists_url":"https://api.github.com/users/rickard-von-essen/gists{/gist_id}","starred_url":"https://api.github.com/users/rickard-von-essen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rickard-von-essen/subscriptions","organizations_url":"https://api.github.com/users/rickard-von-essen/orgs","repos_url":"https://api.github.com/users/rickard-von-essen/repos","events_url":"https://api.github.com/users/rickard-von-essen/events{/privacy}","received_events_url":"https://api.github.com/users/rickard-von-essen/received_events","type":"User","site_admin":false},"assignees":[{"login":"rickard-von-essen","id":557699,"avatar_url":"https://avatars.githubusercontent.com/u/557699?v=3","gravatar_id":"","url":"https://api.github.com/users/rickard-von-essen","html_url":"https://github.com/rickard-von-essen","followers_url":"https://api.github.com/users/rickard-von-essen/followers","following_url":"https://api.github.com/users/rickard-von-essen/following{/other_user}","gists_url":"https://api.github.com/users/rickard-von-essen/gists{/gist_id}","starred_url":"https://api.github.com/users/rickard-von-essen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rickard-von-essen/subscriptions","organizations_url":"https://api.github.com/users/rickard-von-essen/orgs","repos_url":"https://api.github.com/users/rickard-von-essen/repos","events_url":"https://api.github.com/users/rickard-von-essen/events{/privacy}","received_events_url":"https://api.github.com/users/rickard-von-essen/received_events","type":"User","site_admin":false}],"milestone":null,"comments":6,"created_at":"2016-10-27T06:15:14Z","updated_at":"2017-02-09T07:59:28Z","closed_at":null,"body":"- Packer version: `Packer v0.10.1`\n- Host platform: OSX 10.11.6\n\nI try to build an AMI where the OpenSSH server can only accept the following MAC alogithms (`MACs` option): \n- `hmac-sha2-512-etm@openssh.com`\n- `hmac-sha2-256-etm@openssh.com`\n- `umac-128-etm@openssh.com`\n- `umac-128@openssh.com`\n\nHowever, it seems that packer only works with one of the following: \n- `hmac-sha2-256`\n- `hmac-sha1`\n- `hmac-sha1-96`\n\nError message: \n\n```\nssh: handshake failed: ssh: no common algorithm for client to server MAC; client offered: [hmac-sha2-256 hmac-sha1 hmac-sha1-96], server offered: [hmac-sha2-512-etm@openssh.com hmac-sha2-256-etm@openssh.com umac-128-etm@openssh.com umac-128@openssh.com]\n```\n\nAs a workaround, I've added `hmac-sha2-256` to the list.\n"},"comment":{"url":"https://api.github.com/repos/mitchellh/packer/issues/comments/278572149","html_url":"https://github.com/mitchellh/packer/issues/4076#issuecomment-278572149","issue_url":"https://api.github.com/repos/mitchellh/packer/issues/4076","id":278572149,"user":{"login":"MiLk","id":29782,"avatar_url":"https://avatars.githubusercontent.com/u/29782?v=3","gravatar_id":"","url":"https://api.github.com/users/MiLk","html_url":"https://github.com/MiLk","followers_url":"https://api.github.com/users/MiLk/followers","following_url":"https://api.github.com/users/MiLk/following{/other_user}","gists_url":"https://api.github.com/users/MiLk/gists{/gist_id}","starred_url":"https://api.github.com/users/MiLk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MiLk/subscriptions","organizations_url":"https://api.github.com/users/MiLk/orgs","repos_url":"https://api.github.com/users/MiLk/repos","events_url":"https://api.github.com/users/MiLk/events{/privacy}","received_events_url":"https://api.github.com/users/MiLk/received_events","type":"User","site_admin":false},"created_at":"2017-02-09T07:59:28Z","updated_at":"2017-02-09T07:59:28Z","body":"Quick update on that issue:\r\n* Support for `hmac-sha2-256-etm@openssh.com\r\n ` has been added to go/crypto yesterday night with https://github.com/golang/crypto/commit/84bacda6ede319f5074d43b5d096b7ee7f3f5d77\r\n* I will soon submit a new CL to add `hmac-sha2-512` and `hmac-sha2-512-etm@openssh.com`\r\n* When those algorithms will be added I will update the dependency in packer and submit a PR here."}}
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