Add autogeneration of RSA key pair for each shuffling session #5
Description
Situation
Currently, for using node-cli, the user must somehow generate an RSA key pair before starting shuffling (usually, with openssl binary or even an online generator) which makes the shuffling process really uncomfortable and bloated amount of parameters that the user should pass to node-cli
Objective
Add a feature for the automatic generation of RSA key pair for each Coin Shuffle session
Acceptance
When a user doesn't pass a his RSA secret key, node-cli generates a new one on fly