| 摘要 |
<p>The method involves authenticating a receiver (200) using a pair of encryption keys e.g. private key and public key, and sending a series of information from a transmitter (100) to the receiver. An acknowledgement of receipt including an element i.e. text, semantically associated to the transmitted series of information, is retransmitted from the receiver to the transmitter, where the text is transmitted by the transmitter under an image form. The public key is stored in a RAM (103) of the receiver, and the private key is stored in a RAM (203) of the transmitter.</p> |
