I have a string that I would like to encrypt in Python, store it as a cookie, then in a PHP file I'd like to retrieve that cookie, and decrypt it in PHP. How would I go about doing this?

I appreciate the fast responses.
All cookie talk aside, lets just say I want to encrypt a string in Python and then decrypt a string in PHP.
Are there any examples you can point me to?
Well, my first thought would be to use a web server that uses SSL and set the cookie's secure property to true, meaning that it will only be served over SSL connections.
However, I'm aware that this probably isn't what you're looking for.
How to encrypt a string in Python and decrypt that same string in PHP?