For internet explorer or whatever, I get it... It's in essence a sneakernet, you get them on the physical media from which you install your system and browser. But what about for firefox and chrome? ...
When you ssh into a remote box for the first time or if the remote host's key fingerprint has changed (from what's stored in your known_hosts file) you get a warning and you are shown the fingerprint ...
I'm working on software that will be in use for foreseeable future (15 years+) that will need to validate XAdES-A signatures (long term archival, similar to PAdES-A, but for XML). That means, it will ...