title: AES encryption, what are public and private keys?
body: <p>In AES encryption (.net framework), how are the public and private keys used?</p>
  
  <p>Are the public and private keys combined to form a full key, and then the algorithm uses the public + private key to encrypt the data?</p>
  
  <p>(simplified keys used below for example purposes)</p>
  
  <p>e.g.
  public key = 12345
  private key = 67890</p>
  
  <p>so the key used when generating the encryption result is: 1234567890</p>