Hey, I'm glad to have been a help!
You're right: The file manager's display name for "gnome-keyring-pkcs11.desktop" varies depending on the locale. I should have mentioned that. For most English installations, it will show up as "Certificate and Key Storage," as you noted. On my system, it happens to be "証明書および鍵を格納するストレージ." Either way, there's no fooling the terminal:
captainbang@planetcrunch:/etc/xdg/autostart$ ls -l | grep gnome-keyring -rw-r--r-- 1 root root 5340 8月 20 2012 gnome-keyring-gpg.desktop -rw-r--r-- 1 root root 6724 1月 11 20:03 gnome-keyring-pkcs11.desktop -rw-r--r-- 1 root root 6282 8月 20 2012 gnome-keyring-secrets.desktop -rw-r--r-- 1 root root 5138 1月 11 18:58 gnome-keyring-ssh.desktop
The real "key," of course, is python-xdg. It's a tiny package, but without it, Openbox doesn't complete the autostart process.
Anyway, thanks for confirming the fix. If I come across any others, I'll be sure to post 'em on these excellent forums!