I want the computer like pageant, to show a SSH password prompt during boot time. I have my private keys stored in a Dropbox between 3 computers of which 1 is now Ubuntu.
I have googled for 2 hours and asked other people, but most people simply do not use private keys at all or use private keys without passwords and therefore do not need something like this. I however use my same private key at multiple locations and renew it every year. It must be password-protected because it's on multiple locations and on my Dropbox.
I found Seahorse, although I am no sure it does what I want it to do, but it gives segmentation faults on a fresh Ubuntu install while importing a PuTTy key exported to OpenSSH.