Bug 16594

Summary:	Can't add ED25519 keys with `ssh-add`
Product:	Mageia	Reporter:	Augier <christophe>
Component:	RPM Packages	Assignee:	Guillaume Rousse <guillomovitch>
Status:	RESOLVED FIXED	QA Contact:
Severity:	major
Priority:	Normal	CC:	marja11
Version:	5
Target Milestone:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Source RPM:	openssh	CVE:
Status comment:

Description Augier 2015-08-16 10:06:22 CEST

Description of problem:

Getting 

`Error reading response length from authentication socket.
Could not add identity: ~/.ssh/id_ed25519`

when entering `ssh-add` on startup. I have to start another SSH agent to add ED25519 keys. The bug doesn't seem to occur with RSA keys.


Version-Release number of selected component (if applicable):

OpenSSH 6.6P1

Steps to Reproduce:
1. do a fresh install of Mageia 5,
2. generate a ED25519 key,
3. reboot and open a terminal,
4. type `ssh-add`


Reproducible: 

Steps to Reproduce:

Comment 1 Marja Van Waes 2015-08-20 19:33:12 CEST

Assigning to maintainer

CC: (none) => marja11
Assignee: bugsquad => guillomovitch

Comment 2 Guillaume Rousse 2015-09-01 20:31:39 CEST

You're probably not using openssh implementation of ssh agent (ssh-agent), but another one, such as gnome-keyring. Check $SSH_AUTH_SOCK value, if that's something such as '/run/user/...' instead of '/tmp/...', that's the case.

Upstream bug for gnome-keyring here:
https://bugzilla.gnome.org/show_bug.cgi?id=641082 for

Comment 3 Augier 2015-09-01 20:46:06 CEST

`$SSH_AUTH_SOCK` is not set here.

Comment 4 Guillaume Rousse 2015-09-01 20:51:57 CEST

AFAIK, any SSH agent is supposed to set SSH_AGENT_PID and SSH_AUTH_SOCK environment variables. If you don't have any of them, that's another hint you're not using the one provided by openssh project.

Comment 5 Augier 2015-09-01 20:56:50 CEST

That's right, my bad, I have reinstalled Mageia a few days ago. SSH agent is not started anymore on boot (dunno why, maybe I should open a bug about it?).

I started SSH Agent and ssh-added, all works well. Closing this, then. Thx for help.

Comment 6 Augier 2015-09-01 20:57:53 CEST

Closing.

Status: NEW => RESOLVED
Resolution: (none) => FIXED