I agree on this key needing to be available in the/an official Ubuntu keyring package.
For now, because the original key file is not even accessible via HTTPS, I am attaching a copy of it here. The file is dated 2016-07-04 16:10, and has the following SHA{256,512} hashes: 4a54623d5ec01d098441a42413d5d176c3292113aed9d274ac18ddaec50b76ce dbgsym-release-key.asc 728caec72fa2062f6d931a2c231433ee7dd0181d10d59ac6ec2afe90abc4cf17e3c9a7a4e82430ffdbd850eb68557bd33c1882e7de1dd93bc9b8dbbc61119f82 dbgsym-release-key.asc Original location: http://ddebs.ubuntu.com/dbgsym-release-key.asc If anyone sees a difference with the original, please speak up. ** Attachment added: "dbgsym-release-key.asc" https://bugs.launchpad.net/ubuntu/+source/ubuntu-keyring/+bug/643623/+attachment/4903350/+files/dbgsym-release-key.asc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/643623 Title: Should ubuntu-keyring include the debug archive key? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-keyring/+bug/643623/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs