KeePass2 .. It works well with windows and ubuntu. So I can use the same password store file for both environments. ... The only problem atm is my mobile device :) It uses ubuntu touch.
There is also one more thing. You wrote: "and maybe TiddlySpot"
TiddlySpot uses basic
http with
username, password authentication at the moment. This mechanism is all plain text.
So logging on to tiddlyspot on a public wifi is an invitation for a "
man in the middle" attack.
As I wrote. Most of the time the encryption mechanisms are not the vulnerable elements.
Users and their "bad habbits" are one element. eg: using the same and easy to guess passwords for way to many sites.
... and ... the annual cost and complexity to enable https:// is the second element, why the web is still an insecure place.
--- OT
https://letsencrypt.org/ may be an interesting approach to create free certs. ... But the last time I visited the project page, they where not finished yet. .. So time to have a new look ;)
-m