| 摘要 |
A method for sending a secure message in a telecommunications system using public encryption keys. A sending transceiver encrypts the message c using the sender's own public encryption key Ex to generate Ex(c), and, transmits the encrypted message Ex(c) to a receiving transceiver. The receiving transceiver then encrypts the encrypted message Ex(c) using the encryption key Ey of the intended receiver of the message to generate the message Ey(Ex(c)), and, transmits the message Ey(Ex(c)) back to the sending transceiver. The sending transceiver then decrypts the message Ey(Ex(c)) using sender's private decryption key to generate Dx(Ey(Ex(c))) = Ey(c), and, transmits the message Ey(c) back to the receiving transceiver. The receiving transceiver then either decrypts the message using its own decryption key Dy, if it is the intended receiver of the message, to generate Dy(Ey(c)) = c, or, forwards the message on to the intended receiver of the message, if it is not the intended receiver of the message, where the intended receiver decrypts the message using its own decryption key Dy. <IMAGE> |
