Public bug reported: It appears that ed25519 keys cannot be added to the key ring. When an attempt is made to add an ed25519 or ecdsa key, a message "Error reading response length from authentication socket." is given. The keyring accepts RSA keys, it should accept the other types of keys as well.
$ ssh-keygen -t rsa -P '' -f key_rsa Generating public/private rsa key pair. Your identification has been saved in key_rsa. Your public key has been saved in key_rsa.pub. The key fingerprint is: bc:72:47:4e:34:5d:c1:f5:79:e8:7f:47:e9:dc:36:13 lars@gazelle9 The key's randomart image is: +--[ RSA 2048]----+ | .oo.| | . ...o| | o . ..o| | . . . . o| | S o .E.| | = ooo| | . o o =*| | o . .=| | | +-----------------+ $ ssh-keygen -t ed25519 -P '' -f key_ed25519 Generating public/private ed25519 key pair. Your identification has been saved in key_ed25519. Your public key has been saved in key_ed25519.pub. The key fingerprint is: f7:7e:7a:06:9b:f9:c7:c4:34:c5:73:d8:10:4a:ac:16 lars@gazelle9 The key's randomart image is: +--[ED25519 256--+ | .. o* | | E.....=| | o. +| | o ..| | S.. o.| | . .. o| | .= o | | .+ + o| | o*.. | +-----------------+ $ ssh-add key_rsa Identity added: key_rsa (key_rsa) $ ssh-add key_ed25519 Error reading response length from authentication socket. Could not add identity: key_ed25519 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: gnome-keyring 3.10.1-1ubuntu4.1 ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8 Uname: Linux 3.13.0-39-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 CurrentDesktop: Unity Date: Mon Nov 17 21:32:02 2014 InstallationDate: Installed on 2014-10-26 (22 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) SourcePackage: gnome-keyring UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gnome-keyring (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-keyring in Ubuntu. https://bugs.launchpad.net/bugs/1393531 Title: cannot add ed25519 or ecdsa keys to the keyring To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/1393531/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs