| 摘要 |
<p>An encryption method designed for enabling a first processing unit to send an encrypted message, via a bi-directional communication network, to at least one second processing unit connected to said bi-directional network; the encryption method comprising the steps of performing, via the first processing unit, a first encryption (100) of a message, using at least one first private key (CHA), and of sending (110) the encrypted message, via the bi-directional communication network, to the second processing unit, which performs a second encryption (130) of the message, using a second private key (CHB); the second processing unit sends the encrypted message back to the first processing unit, which performs a decryption (160) of the message by removing the first encryption by means of the first private key (CHA) and re-transmits the encrypted message to the second processing unit, which in turn performs decryption (190) of the message by removing the second encryption by means of the second private key (CHB), in such a way as to obtain the decrypted message.</p> |
