I know that there are other key/value stores similar to http://openkeyval.org out there but i cannot remember their names.
Please enlighten me.
i need the following features:
edit:
dropped the security requirement, since its not very important to me and was skewing the answers towards self-hosted solutions.
found another service:
http://rastajs.errorjs.com/
this one is easy to use but seems to mangle my values by removing all the spaces!
Parse.com's data storage api has a really wonderful jquery library ( https://github.com/srhyne/jQuery-Parse ) that makes it extremely easy to have simple key/value storage from your front-end javascript.