How does my private key help me receive a file?
note
You do not have to perform anything in the front end; the following process happens in under 0.1ms automatically.
Receiving a file requires the fingerprint of your key and your private key blended. 
fingerprint + private key =  digital signature
Once the sender's digital signature is sent to you, your public key is used to verify the user's digital signature you received. 
info
- You cannot perform anything in the system without your 
public key. - The  
public keyis stored on the server.