The following error was found in my syslog file :
gnome-keyring-daemon: unsupported key algorithm in certificate: 1.2.840.10045.2.1
What’s that exactly?
A quick search in the Debian Bug report tool informs me that a bug has already been registered :
No workaround has been added to the comments in this bug report.
In this link, http://ubuntuforums.org/showthread.php?t=1323517, it seems that installing the libpam-unix2 package may be a solution to this problem.
Hope this helps you if you encounter the same error message.