I'm looking for a public private key solution that I can use with a javascript client and python backend. The aim is to send data encrypted from the client to the server... Are the any solutions? Thanks for hints.
Use SSL for your connections to the server. Probably the easiest way to do that is to use HTTP for communication and also to run a proxy (say, Apache) on the server that can do HTTPS and forwards requests to the actual server application.
public private key solution for javascript and python