Ubuntu
gnome-keyring package

  1. Bug #771272
  2. Comment #11

Comment 11 for bug 771272

Revision history for this message
Didier Conchaudron (dcn) wrote : Re: ssh-add does not handle ECDSA keys until ssh-agent exports are manually launched

Same problem here. Tested on regular 12.04 with 521 bits long ECDSA:

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

Claudio trick to export ssh-agent variables worked:

$ ssh-add
Enter passphrase for /home/user/.ssh/id_ecdsa:
Identity added: /home/user/.ssh/id_ecdsa (/home/user/.ssh/id_ecdsa)