gnome-keyring SRU breaks ECDSA keys

[Ross Younger]

Previously I had been using ssh-add with ECDSA keys. (OpenSSH_6.6.1p1 Ubuntu-2ubuntu2, OpenSSL 1.0.1f 6 Jan 2014)
After my system updated to gnome-keyring 3.10.1-1ubuntu4.1 (picking up the fix for #1271591) they stopped working:

    wry@onyx:~$ ssh-add ~/.ssh/id_ecdsa
    Enter passphrase for /home/wry/.ssh/id_ecdsa:
    Error reading response length from authentication socket.
    Could not add identity: /home/wry/.ssh/id_ecdsa

Downgrading to gnome-keyring 3.10.1-1ubuntu4 resolves the issue.

This appears to be because gnome-keyring does not support ECDSA. https://bugzilla.gnome.org/show_bug.cgi?id=641082 refers.

This means that the fix for #1271591 is an overall system regression for anybody who uses ECDSA keys.

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: Sat Nov 1 10:34:45 2014
SourcePackage: gnome-keyring
UpgradeStatus: Upgraded to trusty on 2014-09-20 (40 days ago)