Patent ID: 8200973

Claim:
A method for encrypted authentication between a sending device and receiving device, the sending device transmitting at least a first type of data and a second type of data that is different from the first type of data, and the receiving device receiving at least the first type of data and the second type of data, wherein a result of encrypted authentication performed on the first type of data is applied to the second of data; wherein the result of the encrypted authentication is a result of receiving an encrypted exchange key generated by the sending device and decrypting the encrypted exchange key using an authentication key between the sending and receiving devices to obtain an exchange key; and wherein the method comprises: receiving the first type of data that is encrypted using an exchange key generated by the sending device and decrypting the first type of data using the decrypted exchange key; and receiving the second type of data and decrypting the second type of data using the decrypted exchange key.