This module contains three nodes for Node-RED which allow you to easily create a keypair and encrypt or decrypt messages.
rsa-encrypt: encrypts input payload (strings or objects) using an RSA public key. Outputs an encrypted Base64 string. Alternatively, when a message topic has been set to 'public-key', this will set the public key of this node to the incoming msg.payload.
rsa-decrypt: decrypts input payload using an RSA private key. Outputs a string or JSON object. Alternatively, when a message topic has been set to 'private-key', this will set the according private key of this node to msg.payload.
rsa-generate-keypair: Generates a new RSA keypair. This node can be connected to rsa-encrypt and rsa-decrypt to set their keys to the newly generated values.